diff --git a/Android.mk b/Android.mk
index bd0c9de..47648db 100644
--- a/Android.mk
+++ b/Android.mk
@@ -60,7 +60,7 @@
 
 # Uncomment the following line to build against the current SDK
 # This is required for building an unbundled app.
-LOCAL_SDK_VERSION := current
+LOCAL_SDK_VERSION := system_current
 
 include $(BUILD_PACKAGE)
 
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 496e5f2..9d5af42 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -17,8 +17,8 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.android.dialer"
     coreApp="true"
-    android:versionCode="20315"
-    android:versionName="2.3.15">
+    android:versionCode="20314"
+    android:versionName="2.3.14">
 
     <uses-sdk
         android:minSdkVersion="23"
diff --git a/src/com/android/dialer/CallDetailActivity.java b/src/com/android/dialer/CallDetailActivity.java
index 88d3fe2..c045967 100644
--- a/src/com/android/dialer/CallDetailActivity.java
+++ b/src/com/android/dialer/CallDetailActivity.java
@@ -43,6 +43,7 @@
 import com.android.contacts.common.ContactPhotoManager;
 import com.android.contacts.common.ContactPhotoManager.DefaultImageRequest;
 import com.android.contacts.common.GeoUtil;
+import com.android.contacts.common.compat.CompatUtils;
 import com.android.contacts.common.interactions.TouchPointManager;
 import com.android.contacts.common.preference.ContactsPreferences;
 import com.android.contacts.common.testing.NeededForTesting;
@@ -109,11 +110,19 @@
             // All calls are from the same number and same contact, so pick the first detail.
             mDetails = details[0];
             mNumber = TextUtils.isEmpty(mDetails.number) ? null : mDetails.number.toString();
+            mPostDialDigits = TextUtils.isEmpty(mDetails.postDialDigits)
+                    ? "" : mDetails.postDialDigits;
             mDisplayNumber = mDetails.displayNumber;
 
             final CharSequence callLocationOrType = getNumberTypeOrLocation(mDetails);
 
-            final CharSequence displayNumber = mDetails.displayNumber;
+            final CharSequence displayNumber;
+            if (!TextUtils.isEmpty(mDetails.postDialDigits)) {
+                displayNumber = mDetails.number + mDetails.postDialDigits;
+            } else {
+                displayNumber = mDetails.displayNumber;
+            }
+
             final String displayNumberStr = mBidiFormatter.unicodeWrap(
                     displayNumber.toString(), TextDirectionHeuristics.LTR);
 
@@ -199,6 +208,7 @@
     private PhoneCallDetails mDetails;
     protected String mNumber;
     private Uri mVoicemailUri;
+    private String mPostDialDigits = "";
     private String mDisplayNumber;
 
     private ListView mHistoryList;
@@ -240,7 +250,9 @@
 
         mQuickContactBadge = (QuickContactBadge) findViewById(R.id.quick_contact_photo);
         mQuickContactBadge.setOverlay(null);
-        mQuickContactBadge.setPrioritizedMimeType(Phone.CONTENT_ITEM_TYPE);
+        if (CompatUtils.hasPrioritizedMimeType()) {
+            mQuickContactBadge.setPrioritizedMimeType(Phone.CONTENT_ITEM_TYPE);
+        }
         mCallerName = (TextView) findViewById(R.id.caller_name);
         mCallerNumber = (TextView) findViewById(R.id.caller_number);
         mAccountLabel = (TextView) findViewById(R.id.phone_account_label);
@@ -254,7 +266,7 @@
                     return;
                 }
                 mContext.startActivity(
-                        new CallIntentBuilder(mNumber)
+                        new CallIntentBuilder(getDialableNumber())
                                 .setCallInitiationType(LogState.INITIATION_CALL_DETAILS)
                                 .build());
             }
@@ -372,7 +384,8 @@
                 ClipboardUtils.copyText(mContext, null, mNumber, true);
                 break;
             case R.id.call_detail_action_edit_before_call:
-                Intent dialIntent = new Intent(Intent.ACTION_DIAL, CallUtil.getCallUri(mNumber));
+                Intent dialIntent = new Intent(Intent.ACTION_DIAL,
+                        CallUtil.getCallUri(getDialableNumber()));
                 DialerUtils.startActivityWithErrorToast(mContext, dialIntent);
                 break;
             default:
@@ -468,6 +481,10 @@
         sendBroadcast(new Intent(Intent.ACTION_CLOSE_SYSTEM_DIALOGS));
     }
 
+    private String getDialableNumber() {
+        return mNumber + mPostDialDigits;
+    }
+
     @NeededForTesting
     public boolean hasVoicemail() {
         return mVoicemailUri != null;
diff --git a/src/com/android/dialer/DialtactsActivity.java b/src/com/android/dialer/DialtactsActivity.java
index 6de1fdc..a6fb98c 100644
--- a/src/com/android/dialer/DialtactsActivity.java
+++ b/src/com/android/dialer/DialtactsActivity.java
@@ -787,7 +787,13 @@
             return;
         }
         if (clearDialpad) {
+            // Temporarily disable accessibility when we clear the dialpad, since it should be
+            // invisible and should not announce anything.
+            mDialpadFragment.getDigitsWidget().setImportantForAccessibility(
+                    View.IMPORTANT_FOR_ACCESSIBILITY_NO);
             mDialpadFragment.clearDialpad();
+            mDialpadFragment.getDigitsWidget().setImportantForAccessibility(
+                    View.IMPORTANT_FOR_ACCESSIBILITY_AUTO);
         }
         if (!mIsDialpadShown) {
             return;
diff --git a/src/com/android/dialer/PhoneCallDetails.java b/src/com/android/dialer/PhoneCallDetails.java
index fb1827d..71aa26d 100644
--- a/src/com/android/dialer/PhoneCallDetails.java
+++ b/src/com/android/dialer/PhoneCallDetails.java
@@ -31,6 +31,8 @@
 public class PhoneCallDetails {
     // The number of the other party involved in the call.
     public CharSequence number;
+    // Post-dial digits associated with the outgoing call.
+    public String postDialDigits;
     // The number presenting rules set by the network, e.g., {@link Calls#PRESENTATION_ALLOWED}
     public int numberPresentation;
     // The formatted version of {@link #number}.
@@ -114,16 +116,19 @@
             CharSequence number,
             int numberPresentation,
             CharSequence formattedNumber,
+            CharSequence postDialDigits,
             boolean isVoicemail) {
         this.number = number;
         this.numberPresentation = numberPresentation;
         this.formattedNumber = formattedNumber;
         this.isVoicemail = isVoicemail;
+        this.postDialDigits = postDialDigits.toString();
         this.displayNumber = PhoneNumberDisplayUtil.getDisplayNumber(
                 context,
                 this.number,
                 this.numberPresentation,
                 this.formattedNumber,
+                this.postDialDigits,
                 this.isVoicemail).toString();
     }
 
diff --git a/src/com/android/dialer/SpecialCharSequenceMgr.java b/src/com/android/dialer/SpecialCharSequenceMgr.java
index d9e2938..c212597 100644
--- a/src/com/android/dialer/SpecialCharSequenceMgr.java
+++ b/src/com/android/dialer/SpecialCharSequenceMgr.java
@@ -41,6 +41,7 @@
 import android.widget.Toast;
 
 import com.android.common.io.MoreCloseables;
+import com.android.contacts.common.compat.CompatUtils;
 import com.android.contacts.common.database.NoNullCursorAsyncQueryHandler;
 import com.android.contacts.common.util.ContactDisplayUtils;
 import com.android.contacts.common.widget.SelectPhoneAccountDialogFragment;
@@ -246,13 +247,14 @@
 
                 List<PhoneAccountHandle> subscriptionAccountHandles =
                         PhoneAccountUtils.getSubscriptionPhoneAccounts(context);
-
                 Context applicationContext = context.getApplicationContext();
                 boolean hasUserSelectedDefault = subscriptionAccountHandles.contains(
                         TelecomUtil.getDefaultOutgoingPhoneAccount(applicationContext,
                                 PhoneAccount.SCHEME_TEL));
 
-                if (subscriptionAccountHandles.size() == 1 || hasUserSelectedDefault) {
+                if (!CompatUtils.isMSIMCompatible()) {
+                    handleAdnQuery(handler, sc, Uri.parse("content://icc/adn"));
+                } else if (subscriptionAccountHandles.size() == 1 || hasUserSelectedDefault) {
                     Uri uri = TelecomUtil.getAdnUriForPhoneAccount(applicationContext, null);
                     handleAdnQuery(handler, sc, uri);
                 } else if (subscriptionAccountHandles.size() > 1){
@@ -303,7 +305,8 @@
             boolean hasUserSelectedDefault = subscriptionAccountHandles.contains(
                     TelecomUtil.getDefaultOutgoingPhoneAccount(context, PhoneAccount.SCHEME_TEL));
 
-            if (subscriptionAccountHandles.size() == 1 || hasUserSelectedDefault) {
+            if (!CompatUtils.isMSIMCompatible() || subscriptionAccountHandles.size() == 1
+                    || hasUserSelectedDefault) {
                 // Don't bring up the dialog for single-SIM or if the default outgoing account is
                 // a subscription account.
                 return TelecomUtil.handleMmi(context, input, null);
@@ -332,10 +335,14 @@
                     R.string.imei : R.string.meid;
 
             List<String> deviceIds = new ArrayList<String>();
-            for (int slot = 0; slot < telephonyManager.getPhoneCount(); slot++) {
-                String deviceId = telephonyManager.getDeviceId(slot);
-                if (!TextUtils.isEmpty(deviceId)) {
-                    deviceIds.add(deviceId);
+            if (!CompatUtils.isMSIMCompatible()) {
+                deviceIds.add(telephonyManager.getDeviceId());
+            } else {
+                for (int slot = 0; slot < telephonyManager.getPhoneCount(); slot++) {
+                    String deviceId = telephonyManager.getDeviceId(slot);
+                    if (!TextUtils.isEmpty(deviceId)) {
+                        deviceIds.add(deviceId);
+                    }
                 }
             }
 
diff --git a/src/com/android/dialer/calllog/CallLogAdapter.java b/src/com/android/dialer/calllog/CallLogAdapter.java
index 55e2fa0..dac50ff 100644
--- a/src/com/android/dialer/calllog/CallLogAdapter.java
+++ b/src/com/android/dialer/calllog/CallLogAdapter.java
@@ -41,10 +41,12 @@
 import android.view.ViewGroup;
 import android.view.accessibility.AccessibilityEvent;
 
+import com.android.contacts.common.compat.PhoneNumberUtilsCompat;
 import com.android.contacts.common.preference.ContactsPreferences;
 import com.android.contacts.common.util.PermissionsUtil;
 import com.android.dialer.PhoneCallDetails;
 import com.android.dialer.R;
+import com.android.dialer.calllog.calllogcache.CallLogCache;
 import com.android.dialer.contactinfo.ContactInfoCache;
 import com.android.dialer.contactinfo.ContactInfoCache.OnContactInfoChangedListener;
 import com.android.dialer.database.FilteredNumberAsyncQueryHandler;
@@ -131,8 +133,8 @@
     /** Instance of helper class for managing views. */
     private final CallLogListItemHelper mCallLogListItemHelper;
 
-    /** Cache for repeated requests to TelecomManager. */
-    protected final TelecomCallLogCache mTelecomCallLogCache;
+    /** Cache for repeated requests to Telecom/Telephony. */
+    protected final CallLogCache mCallLogCache;
 
     /** Helper to group call log entries. */
     private final CallLogGroupBuilder mCallLogGroupBuilder;
@@ -260,11 +262,12 @@
         Resources resources = mContext.getResources();
         CallTypeHelper callTypeHelper = new CallTypeHelper(resources);
 
-        mTelecomCallLogCache = new TelecomCallLogCache(mContext);
+        mCallLogCache = CallLogCache.getCallLogCache(mContext);
+
         PhoneCallDetailsHelper phoneCallDetailsHelper =
-                new PhoneCallDetailsHelper(mContext, resources, mTelecomCallLogCache);
+                new PhoneCallDetailsHelper(mContext, resources, mCallLogCache);
         mCallLogListItemHelper =
-                new CallLogListItemHelper(phoneCallDetailsHelper, resources, mTelecomCallLogCache);
+                new CallLogListItemHelper(phoneCallDetailsHelper, resources, mCallLogCache);
         mCallLogGroupBuilder = new CallLogGroupBuilder(this);
         mFilteredNumberAsyncQueryHandler =
                 new FilteredNumberAsyncQueryHandler(mContext.getContentResolver());
@@ -331,7 +334,7 @@
     @VisibleForTesting
     /* package */ void pauseCache() {
         mContactInfoCache.stop();
-        mTelecomCallLogCache.reset();
+        mCallLogCache.reset();
     }
 
     @Override
@@ -360,7 +363,7 @@
                 view,
                 mContext,
                 mExpandCollapseListener,
-                mTelecomCallLogCache,
+                mCallLogCache,
                 mCallLogListItemHelper,
                 mVoicemailPlaybackPresenter,
                 mFilteredNumberAsyncQueryHandler,
@@ -441,6 +444,9 @@
         int count = getGroupSize(position);
 
         final String number = c.getString(CallLogQuery.NUMBER);
+        final String postDialDigits = PhoneNumberDisplayUtil.canShowPostDial()
+                ? c.getString(CallLogQuery.POST_DIAL_DIGITS) : "";
+
         final int numberPresentation = c.getInt(CallLogQuery.NUMBER_PRESENTATION);
         final PhoneAccountHandle accountHandle = PhoneAccountUtils.getAccount(
                 c.getString(CallLogQuery.ACCOUNT_COMPONENT_NAME),
@@ -448,7 +454,7 @@
         final String countryIso = c.getString(CallLogQuery.COUNTRY_ISO);
         final ContactInfo cachedContactInfo = ContactInfoHelper.getContactInfo(c);
         final boolean isVoicemailNumber =
-                mTelecomCallLogCache.isVoicemailNumber(accountHandle, number);
+                mCallLogCache.isVoicemailNumber(accountHandle, number);
 
         // Note: Binding of the action buttons is done as required in configureActionViews when the
         // user expands the actions ViewStub.
@@ -456,13 +462,15 @@
         ContactInfo info = ContactInfo.EMPTY;
         if (PhoneNumberUtil.canPlaceCallsTo(number, numberPresentation) && !isVoicemailNumber) {
             // Lookup contacts with this number
-            info = mContactInfoCache.getValue(number, countryIso, cachedContactInfo);
+            info = mContactInfoCache.getValue(number + postDialDigits,
+                    countryIso, cachedContactInfo);
         }
         CharSequence formattedNumber = info.formattedNumber == null
-                ? null : PhoneNumberUtils.createTtsSpannable(info.formattedNumber);
+                ? null : PhoneNumberUtilsCompat.createTtsSpannable(info.formattedNumber);
 
         final PhoneCallDetails details = new PhoneCallDetails(
-                mContext, number, numberPresentation, formattedNumber, isVoicemailNumber);
+                mContext, number, numberPresentation, formattedNumber,
+                postDialDigits, isVoicemailNumber);
         details.accountHandle = accountHandle;
         details.callTypes = getCallTypes(c, count);
         details.countryIso = countryIso;
@@ -496,6 +504,7 @@
         views.rowId = c.getLong(CallLogQuery.ID);
         // Store values used when the actions ViewStub is inflated on expansion.
         views.number = number;
+        views.postDialDigits = details.postDialDigits;
         views.displayNumber = details.displayNumber;
         views.numberPresentation = numberPresentation;
         views.callType = c.getInt(CallLogQuery.CALL_TYPE);
diff --git a/src/com/android/dialer/calllog/CallLogAsyncTaskUtil.java b/src/com/android/dialer/calllog/CallLogAsyncTaskUtil.java
index 7771563..bb7bdbd 100644
--- a/src/com/android/dialer/calllog/CallLogAsyncTaskUtil.java
+++ b/src/com/android/dialer/calllog/CallLogAsyncTaskUtil.java
@@ -39,6 +39,9 @@
 
 import com.google.common.annotations.VisibleForTesting;
 
+import java.util.ArrayList;
+import java.util.Arrays;
+
 public class CallLogAsyncTaskUtil {
     private static String TAG = CallLogAsyncTaskUtil.class.getSimpleName();
 
@@ -51,8 +54,9 @@
         GET_CALL_DETAILS,
     }
 
-    private static class CallDetailQuery {
-        static final String[] CALL_LOG_PROJECTION = new String[] {
+    private static final class CallDetailQuery {
+
+        private static final String[] CALL_LOG_PROJECTION_INTERNAL = new String[] {
             CallLog.Calls.DATE,
             CallLog.Calls.DURATION,
             CallLog.Calls.NUMBER,
@@ -66,6 +70,7 @@
             CallLog.Calls.DATA_USAGE,
             CallLog.Calls.TRANSCRIPTION
         };
+        public static final String[] CALL_LOG_PROJECTION;
 
         static final int DATE_COLUMN_INDEX = 0;
         static final int DURATION_COLUMN_INDEX = 1;
@@ -79,6 +84,17 @@
         static final int FEATURES = 9;
         static final int DATA_USAGE = 10;
         static final int TRANSCRIPTION_COLUMN_INDEX = 11;
+        static final int POST_DIAL_DIGITS = 12;
+
+        static {
+            ArrayList<String> projectionList = new ArrayList<>();
+            projectionList.addAll(Arrays.asList(CALL_LOG_PROJECTION_INTERNAL));
+            if (PhoneNumberDisplayUtil.canShowPostDial()) {
+                projectionList.add(AppCompatConstants.POST_DIAL_DIGITS);
+            }
+            projectionList.trimToSize();
+            CALL_LOG_PROJECTION = projectionList.toArray(new String[projectionList.size()]);
+        }
     }
 
     private static class CallLogDeleteBlockedCallQuery {
@@ -164,6 +180,8 @@
             // Read call log.
             final String countryIso = cursor.getString(CallDetailQuery.COUNTRY_ISO_COLUMN_INDEX);
             final String number = cursor.getString(CallDetailQuery.NUMBER_COLUMN_INDEX);
+            final String postDialDigits = PhoneNumberDisplayUtil.canShowPostDial()
+                    ? cursor.getString(CallDetailQuery.POST_DIAL_DIGITS) : "";
             final int numberPresentation =
                     cursor.getInt(CallDetailQuery.NUMBER_PRESENTATION_COLUMN_INDEX);
 
@@ -185,7 +203,8 @@
             }
 
             PhoneCallDetails details = new PhoneCallDetails(
-                    context, number, numberPresentation, info.formattedNumber, isVoicemail);
+                    context, number, numberPresentation, info.formattedNumber,
+                    postDialDigits, isVoicemail);
 
             details.accountHandle = accountHandle;
             details.contactUri = info.lookupUri;
diff --git a/src/com/android/dialer/calllog/CallLogFragment.java b/src/com/android/dialer/calllog/CallLogFragment.java
index ab5bd43..fa6deaf 100644
--- a/src/com/android/dialer/calllog/CallLogFragment.java
+++ b/src/com/android/dialer/calllog/CallLogFragment.java
@@ -33,6 +33,7 @@
 import android.provider.CallLog.Calls;
 import android.provider.ContactsContract;
 import android.provider.VoicemailContract.Status;
+import android.support.v13.app.FragmentCompat;
 import android.support.v7.widget.LinearLayoutManager;
 import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
@@ -55,7 +56,8 @@
  * (all, missed or voicemails), specify it in the constructor.
  */
 public class CallLogFragment extends Fragment implements CallLogQueryHandler.Listener,
-        CallLogAdapter.CallFetcher, OnEmptyViewActionButtonClickedListener {
+        CallLogAdapter.CallFetcher, OnEmptyViewActionButtonClickedListener,
+        FragmentCompat.OnRequestPermissionsResultCallback {
     private static final String TAG = "CallLogFragment";
 
     /**
@@ -513,7 +515,8 @@
         }
 
         if (!PermissionsUtil.hasPermission(activity, READ_CALL_LOG)) {
-            requestPermissions(new String[] {READ_CALL_LOG}, READ_CALL_LOG_PERMISSION_REQUEST_CODE);
+          FragmentCompat.requestPermissions(this, new String[] {READ_CALL_LOG},
+              READ_CALL_LOG_PERMISSION_REQUEST_CODE);
         } else if (!mIsCallLogActivity) {
             // Show dialpad if we are not in the call log activity.
             ((HostInterface) activity).showDialpad();
diff --git a/src/com/android/dialer/calllog/CallLogGroupBuilder.java b/src/com/android/dialer/calllog/CallLogGroupBuilder.java
index 5eea096..194231b 100644
--- a/src/com/android/dialer/calllog/CallLogGroupBuilder.java
+++ b/src/com/android/dialer/calllog/CallLogGroupBuilder.java
@@ -17,7 +17,6 @@
 package com.android.dialer.calllog;
 
 import android.database.Cursor;
-import android.provider.CallLog.Calls;
 import android.telephony.PhoneNumberUtils;
 import android.text.format.Time;
 import android.text.TextUtils;
@@ -28,8 +27,6 @@
 
 import com.google.common.annotations.VisibleForTesting;
 
-import java.util.Objects;
-
 /**
  * Groups together calls in the call log.  The primary grouping attempts to group together calls
  * to and from the same number into a single row on the call log.
@@ -125,12 +122,15 @@
 
         // Instantiate the group values to those of the first call in the cursor.
         String groupNumber = cursor.getString(CallLogQuery.NUMBER);
+        String groupPostDialDigits = PhoneNumberDisplayUtil.canShowPostDial()
+                ? cursor.getString(CallLogQuery.POST_DIAL_DIGITS) : "";
         int groupCallType = cursor.getInt(CallLogQuery.CALL_TYPE);
         String groupAccountComponentName = cursor.getString(CallLogQuery.ACCOUNT_COMPONENT_NAME);
         String groupAccountId = cursor.getString(CallLogQuery.ACCOUNT_ID);
         int groupSize = 1;
 
         String number;
+        String numberPostDialDigits;
         int callType;
         String accountComponentName;
         String accountId;
@@ -138,17 +138,21 @@
         while (cursor.moveToNext()) {
             // Obtain the values for the current call to group.
             number = cursor.getString(CallLogQuery.NUMBER);
+            numberPostDialDigits = PhoneNumberDisplayUtil.canShowPostDial()
+                    ? cursor.getString(CallLogQuery.POST_DIAL_DIGITS) : "";
             callType = cursor.getInt(CallLogQuery.CALL_TYPE);
             accountComponentName = cursor.getString(CallLogQuery.ACCOUNT_COMPONENT_NAME);
             accountId = cursor.getString(CallLogQuery.ACCOUNT_ID);
 
             final boolean isSameNumber = equalNumbers(groupNumber, number);
+            final boolean isSamePostDialDigits = groupPostDialDigits.equals(numberPostDialDigits);
             final boolean isSameAccount = isSameAccount(
                     groupAccountComponentName, accountComponentName, groupAccountId, accountId);
 
             // Group with the same number and account. Never group voicemails. Only group blocked
             // calls with other blocked calls.
-            if (isSameNumber && isSameAccount && areBothNotVoicemail(callType, groupCallType)
+            if (isSameNumber && isSameAccount && isSamePostDialDigits
+                    && areBothNotVoicemail(callType, groupCallType)
                     && (areBothNotBlocked(callType, groupCallType)
                             || areBothBlocked(callType, groupCallType))) {
                 // Increment the size of the group to include the current call, but do not create
@@ -168,6 +172,7 @@
 
                 // Update the group values to those of the current call.
                 groupNumber = number;
+                groupPostDialDigits = numberPostDialDigits;
                 groupCallType = callType;
                 groupAccountComponentName = accountComponentName;
                 groupAccountId = accountId;
diff --git a/src/com/android/dialer/calllog/CallLogListItemHelper.java b/src/com/android/dialer/calllog/CallLogListItemHelper.java
index be0e146..5d2bc85 100644
--- a/src/com/android/dialer/calllog/CallLogListItemHelper.java
+++ b/src/com/android/dialer/calllog/CallLogListItemHelper.java
@@ -16,7 +16,6 @@
 
 package com.android.dialer.calllog;
 
-import android.content.Context;
 import android.content.res.Resources;
 import android.provider.CallLog.Calls;
 import android.text.SpannableStringBuilder;
@@ -26,6 +25,7 @@
 import com.android.dialer.PhoneCallDetails;
 import com.android.dialer.util.AppCompatConstants;
 import com.android.dialer.R;
+import com.android.dialer.calllog.calllogcache.CallLogCache;
 
 /**
  * Helper class to fill in the views of a call log entry.
@@ -37,21 +37,22 @@
     private final PhoneCallDetailsHelper mPhoneCallDetailsHelper;
     /** Resources to look up strings. */
     private final Resources mResources;
-    private final TelecomCallLogCache mTelecomCallLogCache;
+    private final CallLogCache mCallLogCache;
 
     /**
      * Creates a new helper instance.
      *
      * @param phoneCallDetailsHelper used to set the details of a phone call
-     * @param phoneNumberHelper used to process phone number
+     * @param resources The object from which resources can be retrieved
+     * @param callLogCache A cache for values retrieved from telecom/telephony
      */
     public CallLogListItemHelper(
             PhoneCallDetailsHelper phoneCallDetailsHelper,
             Resources resources,
-            TelecomCallLogCache telecomCallLogCache) {
+            CallLogCache callLogCache) {
         mPhoneCallDetailsHelper = phoneCallDetailsHelper;
         mResources = resources;
-        mTelecomCallLogCache = telecomCallLogCache;
+        mCallLogCache = callLogCache;
     }
 
     /**
@@ -188,7 +189,7 @@
         }
 
         int stringID = getCallDescriptionStringID(details.callTypes, details.isRead);
-        String accountLabel = mTelecomCallLogCache.getAccountLabel(details.accountHandle);
+        String accountLabel = mCallLogCache.getAccountLabel(details.accountHandle);
 
         // Use chosen string resource to build up the message.
         CharSequence onAccountLabel = accountLabel == null
@@ -263,7 +264,7 @@
         if (!TextUtils.isEmpty(details.getPreferredName())) {
             recipient = details.getPreferredName();
         } else {
-            recipient = details.displayNumber;
+            recipient = details.displayNumber + details.postDialDigits;
         }
         return recipient;
     }
diff --git a/src/com/android/dialer/calllog/CallLogListItemViewHolder.java b/src/com/android/dialer/calllog/CallLogListItemViewHolder.java
index 63fbe29..21f3213 100644
--- a/src/com/android/dialer/calllog/CallLogListItemViewHolder.java
+++ b/src/com/android/dialer/calllog/CallLogListItemViewHolder.java
@@ -27,7 +27,6 @@
 import android.support.v7.widget.CardView;
 import android.support.v7.widget.RecyclerView;
 import android.telecom.PhoneAccountHandle;
-import android.telephony.PhoneNumberUtils;
 import android.text.BidiFormatter;
 import android.text.TextDirectionHeuristics;
 import android.text.TextUtils;
@@ -43,11 +42,14 @@
 import com.android.contacts.common.ClipboardUtils;
 import com.android.contacts.common.ContactPhotoManager;
 import com.android.contacts.common.ContactPhotoManager.DefaultImageRequest;
+import com.android.contacts.common.compat.CompatUtils;
+import com.android.contacts.common.compat.PhoneNumberUtilsCompat;
 import com.android.contacts.common.dialog.CallSubjectDialog;
 import com.android.contacts.common.testing.NeededForTesting;
 import com.android.contacts.common.util.UriUtils;
 import com.android.dialer.DialtactsActivity;
 import com.android.dialer.R;
+import com.android.dialer.calllog.calllogcache.CallLogCache;
 import com.android.dialer.database.FilteredNumberAsyncQueryHandler;
 import com.android.dialer.filterednumber.BlockNumberDialogFragment;
 import com.android.dialer.filterednumber.FilteredNumbersUtil;
@@ -114,6 +116,11 @@
     public String number;
 
     /**
+     * The post-dial numbers that are dialed following the phone number.
+     */
+    public String postDialDigits;
+
+    /**
      * The formatted phone number to display.
      */
     public String displayNumber;
@@ -183,7 +190,7 @@
     public ContactInfo info;
 
     private final Context mContext;
-    private final TelecomCallLogCache mTelecomCallLogCache;
+    private final CallLogCache mCallLogCache;
     private final CallLogListItemHelper mCallLogListItemHelper;
     private final VoicemailPlaybackPresenter mVoicemailPlaybackPresenter;
     private final FilteredNumberAsyncQueryHandler mFilteredNumberAsyncQueryHandler;
@@ -197,7 +204,7 @@
     private CallLogListItemViewHolder(
             Context context,
             View.OnClickListener expandCollapseListener,
-            TelecomCallLogCache telecomCallLogCache,
+            CallLogCache callLogCache,
             CallLogListItemHelper callLogListItemHelper,
             VoicemailPlaybackPresenter voicemailPlaybackPresenter,
             FilteredNumberAsyncQueryHandler filteredNumberAsyncQueryHandler,
@@ -213,7 +220,7 @@
 
         mContext = context;
         mExpandCollapseListener = expandCollapseListener;
-        mTelecomCallLogCache = telecomCallLogCache;
+        mCallLogCache = callLogCache;
         mCallLogListItemHelper = callLogListItemHelper;
         mVoicemailPlaybackPresenter = voicemailPlaybackPresenter;
         mFilteredNumberAsyncQueryHandler = filteredNumberAsyncQueryHandler;
@@ -235,8 +242,9 @@
         phoneCallDetailsViews.callLocationAndDate.setElegantTextHeight(false);
 
         quickContactView.setOverlay(null);
-        quickContactView.setPrioritizedMimeType(Phone.CONTENT_ITEM_TYPE);
-
+        if (CompatUtils.hasPrioritizedMimeType()) {
+            quickContactView.setPrioritizedMimeType(Phone.CONTENT_ITEM_TYPE);
+        }
         primaryActionButtonView.setOnClickListener(this);
         primaryActionView.setOnClickListener(mExpandCollapseListener);
         primaryActionView.setOnCreateContextMenuListener(this);
@@ -246,7 +254,7 @@
             View view,
             Context context,
             View.OnClickListener expandCollapseListener,
-            TelecomCallLogCache telecomCallLogCache,
+            CallLogCache callLogCache,
             CallLogListItemHelper callLogListItemHelper,
             VoicemailPlaybackPresenter voicemailPlaybackPresenter,
             FilteredNumberAsyncQueryHandler filteredNumberAsyncQueryHandler,
@@ -255,7 +263,7 @@
         return new CallLogListItemViewHolder(
                 context,
                 expandCollapseListener,
-                telecomCallLogCache,
+                callLogCache,
                 callLogListItemHelper,
                 voicemailPlaybackPresenter,
                 filteredNumberAsyncQueryHandler,
@@ -279,7 +287,7 @@
         if (callType == CallLog.Calls.VOICEMAIL_TYPE) {
             menu.setHeaderTitle(mContext.getResources().getText(R.string.voicemail));
         } else {
-            menu.setHeaderTitle(PhoneNumberUtils.createTtsSpannable(
+            menu.setHeaderTitle(PhoneNumberUtilsCompat.createTtsSpannable(
                     BidiFormatter.getInstance().unicodeWrap(number, TextDirectionHeuristics.LTR)));
         }
 
@@ -293,7 +301,7 @@
         // 3) Number is a SIP address
 
         if (PhoneNumberUtil.canPlaceCallsTo(number, numberPresentation)
-                && !mTelecomCallLogCache.isVoicemailNumber(accountHandle, number)
+                && !mCallLogCache.isVoicemailNumber(accountHandle, number)
                 && !PhoneNumberUtil.isSipNumber(number)) {
             menu.add(ContextMenu.NONE, R.id.context_menu_edit_before_call, ContextMenu.NONE,
                     R.string.action_edit_number_before_call)
@@ -414,14 +422,14 @@
             // Treat as normal list item; show call button, if possible.
             if (PhoneNumberUtil.canPlaceCallsTo(number, numberPresentation)) {
                 boolean isVoicemailNumber =
-                        mTelecomCallLogCache.isVoicemailNumber(accountHandle, number);
+                        mCallLogCache.isVoicemailNumber(accountHandle, number);
                 if (isVoicemailNumber) {
                     // Call to generic voicemail number, in case there are multiple accounts.
                     primaryActionButtonView.setTag(
                             IntentProvider.getReturnVoicemailCallIntentProvider());
                 } else {
                     primaryActionButtonView.setTag(
-                            IntentProvider.getReturnCallIntentProvider(number));
+                            IntentProvider.getReturnCallIntentProvider(number + postDialDigits));
                 }
 
                 primaryActionButtonView.setContentDescription(TextUtils.expandTemplate(
@@ -463,7 +471,7 @@
         }
 
         // If one of the calls had video capabilities, show the video call button.
-        if (mTelecomCallLogCache.isVideoEnabled() && canPlaceCallToNumber &&
+        if (mCallLogCache.isVideoEnabled() && canPlaceCallToNumber &&
                 phoneCallDetailsViews.callTypeIcons.isVideoShown()) {
             videoCallButtonView.setTag(IntentProvider.getReturnVideoCallIntentProvider(number));
             videoCallButtonView.setVisibility(View.VISIBLE);
@@ -517,9 +525,9 @@
         mCallLogListItemHelper.setActionContentDescriptions(this);
 
         boolean supportsCallSubject =
-                mTelecomCallLogCache.doesAccountSupportCallSubject(accountHandle);
+                mCallLogCache.doesAccountSupportCallSubject(accountHandle);
         boolean isVoicemailNumber =
-                mTelecomCallLogCache.isVoicemailNumber(accountHandle, number);
+                mCallLogCache.isVoicemailNumber(accountHandle, number);
         callWithNoteButtonView.setVisibility(
                 supportsCallSubject && !isVoicemailNumber ? View.VISIBLE : View.GONE);
     }
@@ -565,7 +573,7 @@
     public void updatePhoto() {
         quickContactView.assignContactUri(info.lookupUri);
 
-        final boolean isVoicemail = mTelecomCallLogCache.isVoicemailNumber(accountHandle, number);
+        final boolean isVoicemail = mCallLogCache.isVoicemailNumber(accountHandle, number);
         int contactType = ContactPhotoManager.TYPE_DEFAULT;
         if (isVoicemail) {
             contactType = ContactPhotoManager.TYPE_VOICEMAIL;
@@ -601,7 +609,7 @@
                     info.lookupUri,
                     (String) nameOrNumber /* top line of contact view in call subject dialog */,
                     isBusiness,
-                    number, /* callable number used for ACTION_CALL intent */
+                    number,
                     TextUtils.isEmpty(info.name) ? null : displayNumber, /* second line of contact
                                                                            view in dialog. */
                     numberType, /* phone number type (e.g. mobile) in second line of contact view */
@@ -621,15 +629,16 @@
     @NeededForTesting
     public static CallLogListItemViewHolder createForTest(Context context) {
         Resources resources = context.getResources();
-        TelecomCallLogCache telecomCallLogCache = new TelecomCallLogCache(context);
+        CallLogCache callLogCache =
+                CallLogCache.getCallLogCache(context);
         PhoneCallDetailsHelper phoneCallDetailsHelper = new PhoneCallDetailsHelper(
-                context, resources, telecomCallLogCache);
+                context, resources, callLogCache);
 
         CallLogListItemViewHolder viewHolder = new CallLogListItemViewHolder(
                 context,
                 null /* expandCollapseListener */,
-                telecomCallLogCache,
-                new CallLogListItemHelper(phoneCallDetailsHelper, resources, telecomCallLogCache),
+                callLogCache,
+                new CallLogListItemHelper(phoneCallDetailsHelper, resources, callLogCache),
                 null /* voicemailPlaybackPresenter */,
                 null /* filteredNumberAsyncQueryHandler */,
                 null /* filteredNumberDialogCallback */,
diff --git a/src/com/android/dialer/calllog/CallLogNotificationsService.java b/src/com/android/dialer/calllog/CallLogNotificationsService.java
index 9a67b61..d2a494d 100644
--- a/src/com/android/dialer/calllog/CallLogNotificationsService.java
+++ b/src/com/android/dialer/calllog/CallLogNotificationsService.java
@@ -67,12 +67,6 @@
     }
 
     @Override
-    public void onCreate() {
-        super.onCreate();
-        mVoicemailQueryHandler = new VoicemailQueryHandler(this, getContentResolver());
-    }
-
-    @Override
     protected void onHandleIntent(Intent intent) {
         if (intent == null) {
             Log.d(TAG, "onHandleIntent: could not handle null intent");
@@ -84,6 +78,9 @@
         }
 
         if (ACTION_MARK_NEW_VOICEMAILS_AS_OLD.equals(intent.getAction())) {
+            if (mVoicemailQueryHandler == null) {
+                mVoicemailQueryHandler = new VoicemailQueryHandler(this, getContentResolver());
+            }
             mVoicemailQueryHandler.markNewVoicemailsAsOld();
         } else if (ACTION_UPDATE_NOTIFICATIONS.equals(intent.getAction())) {
             Uri voicemailUri = (Uri) intent.getParcelableExtra(EXTRA_NEW_VOICEMAIL_URI);
diff --git a/src/com/android/dialer/calllog/CallLogQuery.java b/src/com/android/dialer/calllog/CallLogQuery.java
index 2b43c28..905a4b7 100644
--- a/src/com/android/dialer/calllog/CallLogQuery.java
+++ b/src/com/android/dialer/calllog/CallLogQuery.java
@@ -18,11 +18,19 @@
 
 import android.provider.CallLog.Calls;
 
+import com.android.dialer.compat.DialerCompatUtils;
+import com.android.dialer.util.AppCompatConstants;
+
+import com.google.common.collect.Lists;
+
+import java.util.List;
+
 /**
  * The query for the call log table.
  */
 public final class CallLogQuery {
-    public static final String[] _PROJECTION = new String[] {
+
+    private static final String[] _PROJECTION_INTERNAL = new String[] {
             Calls._ID,                          // 0
             Calls.NUMBER,                       // 1
             Calls.DATE,                         // 2
@@ -46,7 +54,6 @@
             Calls.FEATURES,                     // 20
             Calls.DATA_USAGE,                   // 21
             Calls.TRANSCRIPTION,                // 22
-            Calls.CACHED_PHOTO_URI              // 23
     };
 
     public static final int ID = 0;
@@ -72,5 +79,33 @@
     public static final int FEATURES = 20;
     public static final int DATA_USAGE = 21;
     public static final int TRANSCRIPTION = 22;
-    public static final int CACHED_PHOTO_URI = 23;
+
+    // Indices for columns that may not be available, depending on the Sdk Version
+    /**
+     * Only available in versions >= M
+     * Call {@link DialerCompatUtils#isCallsCachedPhotoUriCompatible()} prior to use
+     */
+    public static int CACHED_PHOTO_URI = -1;
+
+    /**
+     * Only available in versions > M
+     * Call {@link PhoneNumberDisplayUtil#canShowPostDial()} prior to use
+     */
+    public static int POST_DIAL_DIGITS = -1;
+
+    public static final String[] _PROJECTION;
+
+    static {
+        List<String> projectionList = Lists.newArrayList(_PROJECTION_INTERNAL);
+        if (DialerCompatUtils.isCallsCachedPhotoUriCompatible()) {
+            projectionList.add(Calls.CACHED_PHOTO_URI);
+            CACHED_PHOTO_URI = projectionList.size() - 1;
+        }
+        if (PhoneNumberDisplayUtil.canShowPostDial()) {
+            projectionList.add(AppCompatConstants.POST_DIAL_DIGITS);
+            POST_DIAL_DIGITS = projectionList.size() - 1;
+        }
+        _PROJECTION = projectionList.toArray(new String[projectionList.size()]);
+    }
+
 }
diff --git a/src/com/android/dialer/calllog/CallLogQueryHandler.java b/src/com/android/dialer/calllog/CallLogQueryHandler.java
index 3efdce7..4cb835b 100644
--- a/src/com/android/dialer/calllog/CallLogQueryHandler.java
+++ b/src/com/android/dialer/calllog/CallLogQueryHandler.java
@@ -26,6 +26,7 @@
 import android.database.sqlite.SQLiteException;
 import android.database.sqlite.SQLiteFullException;
 import android.net.Uri;
+import android.os.Build;
 import android.os.Handler;
 import android.os.Looper;
 import android.os.Message;
@@ -34,9 +35,9 @@
 import android.provider.VoicemailContract.Voicemails;
 import android.util.Log;
 
+import com.android.contacts.common.compat.SdkVersionOverride;
 import com.android.contacts.common.database.NoNullCursorAsyncQueryHandler;
 import com.android.contacts.common.util.PermissionsUtil;
-import com.android.dialer.filterednumber.FilteredNumbersUtil;
 import com.android.dialer.util.AppCompatConstants;
 import com.android.dialer.util.TelecomUtil;
 import com.android.dialer.voicemail.VoicemailStatusHelperImpl;
@@ -48,8 +49,6 @@
 
 /** Handles asynchronous queries to the call log. */
 public class CallLogQueryHandler extends NoNullCursorAsyncQueryHandler {
-    private static final String[] EMPTY_STRING_ARRAY = new String[0];
-
     private static final String TAG = "CallLogQueryHandler";
     private static final int NUM_LOGS_TO_DISPLAY = 1000;
 
@@ -160,25 +159,25 @@
 
     /** Fetches the list of calls in the call log. */
     private void fetchCalls(int token, int callType, boolean newOnly, long newerThan) {
-        // We need to check for NULL explicitly otherwise entries with where READ is NULL
-        // may not match either the query or its negation.
-        // We consider the calls that are not yet consumed (i.e. IS_READ = 0) as "new".
         StringBuilder where = new StringBuilder();
         List<String> selectionArgs = Lists.newArrayList();
 
+        // Always hide blocked calls.
+        where.append("(").append(Calls.TYPE).append(" != ?)");
+        selectionArgs.add(Integer.toString(AppCompatConstants.CALLS_BLOCKED_TYPE));
+
         // Ignore voicemails marked as deleted
-        where.append(Voicemails.DELETED);
-        where.append(" = 0");
+        if (SdkVersionOverride.getSdkVersion(Build.VERSION_CODES.M)
+                >= Build.VERSION_CODES.M) {
+            where.append(" AND (").append(Voicemails.DELETED).append(" = 0)");
+        }
 
         if (newOnly) {
-            where.append(" AND ");
-            where.append(Calls.NEW);
-            where.append(" = 1");
+            where.append(" AND (").append(Calls.NEW).append(" = 1)");
         }
 
         if (callType > CALL_TYPE_ALL) {
-            where.append(" AND ");
-            where.append("(" + Calls.TYPE + " = ?)");
+            where.append(" AND (").append(Calls.TYPE).append(" = ?)");
             selectionArgs.add(Integer.toString(callType));
         } else {
             where.append(" AND NOT ");
@@ -186,24 +185,17 @@
         }
 
         if (newerThan > 0) {
-            where.append(" AND ");
-            where.append("(" + Calls.DATE + " > ?)");
+            where.append(" AND (").append(Calls.DATE).append(" > ?)");
             selectionArgs.add(Long.toString(newerThan));
         }
 
-        // Always hide blocked calls.
-        where.append(" AND ");
-        where.append("(" + Calls.TYPE + " != ?)");
-        selectionArgs.add(Integer.toString(AppCompatConstants.CALLS_BLOCKED_TYPE));
-
         final int limit = (mLogLimit == -1) ? NUM_LOGS_TO_DISPLAY : mLogLimit;
         final String selection = where.length() > 0 ? where.toString() : null;
         Uri uri = TelecomUtil.getCallLogUri(mContext).buildUpon()
                 .appendQueryParameter(Calls.LIMIT_PARAM_KEY, Integer.toString(limit))
                 .build();
-        startQuery(token, null, uri,
-                CallLogQuery._PROJECTION, selection, selectionArgs.toArray(EMPTY_STRING_ARRAY),
-                Calls.DEFAULT_SORT_ORDER);
+        startQuery(token, null, uri, CallLogQuery._PROJECTION, selection, selectionArgs.toArray(
+                new String[selectionArgs.size()]), Calls.DEFAULT_SORT_ORDER);
     }
 
     /** Cancel any pending fetch request. */
diff --git a/src/com/android/dialer/calllog/ContactInfoHelper.java b/src/com/android/dialer/calllog/ContactInfoHelper.java
index 2da6840..2ecb1e8 100644
--- a/src/com/android/dialer/calllog/ContactInfoHelper.java
+++ b/src/com/android/dialer/calllog/ContactInfoHelper.java
@@ -19,6 +19,7 @@
 import android.database.Cursor;
 import android.database.sqlite.SQLiteFullException;
 import android.net.Uri;
+import android.os.Build;
 import android.provider.CallLog.Calls;
 import android.provider.ContactsContract;
 import android.provider.ContactsContract.CommonDataKinds.Phone;
@@ -29,10 +30,12 @@
 import android.text.TextUtils;
 import android.util.Log;
 
+import com.android.contacts.common.ContactsUtils;
 import com.android.contacts.common.util.Constants;
 import com.android.contacts.common.util.PermissionsUtil;
 import com.android.contacts.common.util.PhoneNumberHelper;
 import com.android.contacts.common.util.UriUtils;
+import com.android.dialer.compat.DialerCompatUtils;
 import com.android.dialer.service.CachedNumberLookupService;
 import com.android.dialer.service.CachedNumberLookupService.CachedContactInfo;
 import com.android.dialer.util.TelecomUtil;
@@ -157,9 +160,14 @@
             return ContactInfo.EMPTY;
         }
 
-        Cursor phoneLookupCursor = mContext.getContentResolver().query(uri,
-                PhoneQuery.PHONE_LOOKUP_PROJECTION, null, null, null);
-
+        Cursor phoneLookupCursor = null;
+        try {
+            phoneLookupCursor = mContext.getContentResolver().query(uri,
+                    PhoneQuery.PHONE_LOOKUP_PROJECTION, null, null, null);
+        } catch (NullPointerException e) {
+            // Trap NPE from pre-N CP2
+            return null;
+        }
         if (phoneLookupCursor == null) {
             return null;
         }
@@ -330,7 +338,8 @@
 
             final Uri updatedPhotoUriContactsOnly =
                     UriUtils.nullForNonContactsUri(updatedInfo.photoUri);
-            if (!UriUtils.areEqual(updatedPhotoUriContactsOnly, callLogInfo.photoUri)) {
+            if (DialerCompatUtils.isCallsCachedPhotoUriCompatible() &&
+                    !UriUtils.areEqual(updatedPhotoUriContactsOnly, callLogInfo.photoUri)) {
                 values.put(Calls.CACHED_PHOTO_URI,
                         UriUtils.uriToString(updatedPhotoUriContactsOnly));
                 needsUpdate = true;
@@ -349,8 +358,10 @@
             values.put(Calls.CACHED_MATCHED_NUMBER, updatedInfo.number);
             values.put(Calls.CACHED_NORMALIZED_NUMBER, updatedInfo.normalizedNumber);
             values.put(Calls.CACHED_PHOTO_ID, updatedInfo.photoId);
-            values.put(Calls.CACHED_PHOTO_URI, UriUtils.uriToString(
-                    UriUtils.nullForNonContactsUri(updatedInfo.photoUri)));
+            if (DialerCompatUtils.isCallsCachedPhotoUriCompatible()) {
+                values.put(Calls.CACHED_PHOTO_URI, UriUtils.uriToString(
+                        UriUtils.nullForNonContactsUri(updatedInfo.photoUri)));
+            }
             values.put(Calls.CACHED_FORMATTED_NUMBER, updatedInfo.formattedNumber);
             needsUpdate = true;
         }
@@ -379,13 +390,31 @@
     }
 
     public static Uri getContactInfoLookupUri(String number) {
+        return getContactInfoLookupUri(number, -1);
+    }
+
+    public static Uri getContactInfoLookupUri(String number, long directoryId) {
         // Get URI for the number in the PhoneLookup table, with a parameter to indicate whether
         // the number is a SIP number.
-        return PhoneLookup.ENTERPRISE_CONTENT_FILTER_URI.buildUpon()
-                .appendPath(Uri.encode(number))
+        Uri uri = PhoneLookup.ENTERPRISE_CONTENT_FILTER_URI;
+        if (!ContactsUtils.FLAG_N_FEATURE) {
+            if (directoryId != -1) {
+                // ENTERPRISE_CONTENT_FILTER_URI in M doesn't support directory lookup
+                uri = PhoneLookup.CONTENT_FILTER_URI;
+            } else {
+                // b/25900607 in M. PhoneLookup.ENTERPRISE_CONTENT_FILTER_URI, encodes twice.
+                number = Uri.encode(number);
+            }
+        }
+        Uri.Builder builder = uri.buildUpon()
+                .appendPath(number)
                 .appendQueryParameter(PhoneLookup.QUERY_PARAMETER_SIP_ADDRESS,
-                        String.valueOf(PhoneNumberHelper.isUriNumber(number)))
-                .build();
+                String.valueOf(PhoneNumberHelper.isUriNumber(number)));
+        if (directoryId != -1) {
+            builder.appendQueryParameter(ContactsContract.DIRECTORY_PARAM_KEY,
+                    String.valueOf(directoryId));
+        }
+        return builder.build();
     }
 
     /**
@@ -400,11 +429,17 @@
         info.type = c.getInt(CallLogQuery.CACHED_NUMBER_TYPE);
         info.label = c.getString(CallLogQuery.CACHED_NUMBER_LABEL);
         String matchedNumber = c.getString(CallLogQuery.CACHED_MATCHED_NUMBER);
-        info.number = matchedNumber == null ? c.getString(CallLogQuery.NUMBER) : matchedNumber;
+        String postDialDigits = PhoneNumberDisplayUtil.canShowPostDial()
+                ? c.getString(CallLogQuery.POST_DIAL_DIGITS) : "";
+        info.number = (matchedNumber == null) ?
+                c.getString(CallLogQuery.NUMBER) + postDialDigits : matchedNumber;
+
         info.normalizedNumber = c.getString(CallLogQuery.CACHED_NORMALIZED_NUMBER);
         info.photoId = c.getLong(CallLogQuery.CACHED_PHOTO_ID);
-        info.photoUri = UriUtils.nullForNonContactsUri(
-                UriUtils.parseUriOrNull(c.getString(CallLogQuery.CACHED_PHOTO_URI)));
+        info.photoUri = DialerCompatUtils.isCallsCachedPhotoUriCompatible() ?
+                UriUtils.nullForNonContactsUri(
+                        UriUtils.parseUriOrNull(c.getString(CallLogQuery.CACHED_PHOTO_URI)))
+                : null;
         info.formattedNumber = c.getString(CallLogQuery.CACHED_FORMATTED_NUMBER);
 
         return info;
diff --git a/src/com/android/dialer/calllog/PhoneAccountUtils.java b/src/com/android/dialer/calllog/PhoneAccountUtils.java
index ceadabc..7dc3292 100644
--- a/src/com/android/dialer/calllog/PhoneAccountUtils.java
+++ b/src/com/android/dialer/calllog/PhoneAccountUtils.java
@@ -23,7 +23,6 @@
 import android.telecom.TelecomManager;
 import android.text.TextUtils;
 
-import com.android.contacts.common.util.PermissionsUtil;
 import com.android.dialer.util.TelecomUtil;
 
 import java.util.ArrayList;
diff --git a/src/com/android/dialer/calllog/PhoneCallDetailsHelper.java b/src/com/android/dialer/calllog/PhoneCallDetailsHelper.java
index 96dbf82..e6b8508 100644
--- a/src/com/android/dialer/calllog/PhoneCallDetailsHelper.java
+++ b/src/com/android/dialer/calllog/PhoneCallDetailsHelper.java
@@ -24,6 +24,7 @@
 import android.graphics.Typeface;
 import android.provider.CallLog.Calls;
 import android.provider.ContactsContract.CommonDataKinds.Phone;
+import android.support.v4.content.ContextCompat;
 import android.telecom.PhoneAccount;
 import android.text.TextUtils;
 import android.text.format.DateUtils;
@@ -34,6 +35,7 @@
 import com.android.contacts.common.util.PhoneNumberHelper;
 import com.android.dialer.PhoneCallDetails;
 import com.android.dialer.R;
+import com.android.dialer.calllog.calllogcache.CallLogCache;
 import com.android.dialer.util.DialerUtils;
 
 import java.util.ArrayList;
@@ -54,7 +56,7 @@
 
     private CharSequence mPhoneTypeLabelForTest;
 
-    private final TelecomCallLogCache mTelecomCallLogCache;
+    private final CallLogCache mCallLogCache;
 
     /** Calendar used to construct dates */
     private final Calendar mCalendar;
@@ -74,10 +76,10 @@
     public PhoneCallDetailsHelper(
             Context context,
             Resources resources,
-            TelecomCallLogCache telecomCallLogCache) {
+            CallLogCache callLogCache) {
         mContext = context;
         mResources = resources;
-        mTelecomCallLogCache = telecomCallLogCache;
+        mCallLogCache = callLogCache;
         mCalendar = Calendar.getInstance();
     }
 
@@ -114,12 +116,12 @@
         setCallCountAndDate(views, callCount, callLocationAndDate);
 
         // Set the account label if it exists.
-        String accountLabel = mTelecomCallLogCache.getAccountLabel(details.accountHandle);
+        String accountLabel = mCallLogCache.getAccountLabel(details.accountHandle);
 
         if (accountLabel != null) {
             views.callAccountLabel.setVisibility(View.VISIBLE);
             views.callAccountLabel.setText(accountLabel);
-            int color = mTelecomCallLogCache.getAccountColor(details.accountHandle);
+            int color = mCallLogCache.getAccountColor(details.accountHandle);
             if (color == PhoneAccount.NO_HIGHLIGHT_COLOR) {
                 int defaultColor = R.color.dialtacts_secondary_text_color;
                 views.callAccountLabel.setTextColor(mContext.getResources().getColor(defaultColor));
@@ -152,9 +154,8 @@
         views.nameView.setTypeface(typeface);
         views.voicemailTranscriptionView.setTypeface(typeface);
         views.callLocationAndDate.setTypeface(typeface);
-        views.callLocationAndDate.setTextColor(mResources.getColor(
-                details.isRead ? R.color.call_log_detail_color : R.color.call_log_unread_text_color,
-                mContext.getTheme()));
+        views.callLocationAndDate.setTextColor(ContextCompat.getColor(mContext, details.isRead ?
+                R.color.call_log_detail_color : R.color.call_log_unread_text_color));
     }
 
     /**
@@ -198,7 +199,7 @@
         // Only show a label if the number is shown and it is not a SIP address.
         if (!TextUtils.isEmpty(details.number)
                 && !PhoneNumberHelper.isUriNumber(details.number.toString())
-                && !mTelecomCallLogCache.isVoicemailNumber(details.accountHandle, details.number)) {
+                && !mCallLogCache.isVoicemailNumber(details.accountHandle, details.number)) {
 
             if (TextUtils.isEmpty(details.namePrimary) && !TextUtils.isEmpty(details.geocode)) {
                 numberFormattedLabel = details.geocode;
diff --git a/src/com/android/dialer/calllog/PhoneNumberDisplayUtil.java b/src/com/android/dialer/calllog/PhoneNumberDisplayUtil.java
index 5030efd..91cd3e1 100644
--- a/src/com/android/dialer/calllog/PhoneNumberDisplayUtil.java
+++ b/src/com/android/dialer/calllog/PhoneNumberDisplayUtil.java
@@ -17,10 +17,9 @@
 package com.android.dialer.calllog;
 
 import android.content.Context;
-import android.content.res.Resources;
+import android.os.Build;
 import android.provider.CallLog.Calls;
 import android.text.TextUtils;
-import android.util.Log;
 
 import com.android.dialer.R;
 import com.android.dialer.util.PhoneNumberUtil;
@@ -67,6 +66,7 @@
             CharSequence number,
             int presentation,
             CharSequence formattedNumber,
+            CharSequence postDialDigits,
             boolean isVoicemail) {
         final CharSequence displayName = getDisplayName(context, number, presentation, isVoicemail);
         if (!TextUtils.isEmpty(displayName)) {
@@ -76,9 +76,18 @@
         if (!TextUtils.isEmpty(formattedNumber)) {
             return formattedNumber;
         } else if (!TextUtils.isEmpty(number)) {
-            return number;
+            return number.toString() + postDialDigits;
         } else {
             return "";
         }
     }
+
+    /**
+     * Returns whether we can expect the post-dial digits to be in the call log.
+     *
+     * These digits will be present in versions N+.
+     */
+    public static boolean canShowPostDial() {
+        return Build.VERSION.SDK_INT > Build.VERSION_CODES.M;
+    }
 }
diff --git a/src/com/android/dialer/calllog/calllogcache/CallLogCache.java b/src/com/android/dialer/calllog/calllogcache/CallLogCache.java
new file mode 100644
index 0000000..e64c012
--- /dev/null
+++ b/src/com/android/dialer/calllog/calllogcache/CallLogCache.java
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.dialer.calllog.calllogcache;
+
+import android.content.Context;
+import android.telecom.PhoneAccountHandle;
+
+import com.android.contacts.common.CallUtil;
+import com.android.contacts.common.compat.CompatUtils;
+import com.android.dialer.calllog.CallLogAdapter;
+
+/**
+ * This is the base class for the CallLogCaches.
+ *
+ * Keeps a cache of recently made queries to the Telecom/Telephony processes. The aim of this cache
+ * is to reduce the number of cross-process requests to TelecomManager, which can negatively affect
+ * performance.
+ *
+ * This is designed with the specific use case of the {@link CallLogAdapter} in mind.
+ */
+public abstract class CallLogCache {
+    // TODO: Dialer should be fixed so as not to check isVoicemail() so often but at the time of
+    // this writing, that was a much larger undertaking than creating this cache.
+
+    protected final Context mContext;
+
+    private boolean mHasCheckedForVideoEnabled;
+    private boolean mIsVideoEnabled;
+
+    public CallLogCache(Context context) {
+        mContext = context;
+    }
+
+    /**
+     * Return the most compatible version of the TelecomCallLogCache.
+     */
+    public static CallLogCache getCallLogCache(Context context) {
+        if (CompatUtils.isMSIMCompatible()) {
+            return new CallLogCacheLollipopMr1(context);
+        }
+        return new CallLogCacheLollipop(context);
+    }
+
+    public void reset() {
+        mHasCheckedForVideoEnabled = false;
+        mIsVideoEnabled = false;
+    }
+
+    /**
+     * Returns true if the given number is the number of the configured voicemail. To be able to
+     * mock-out this, it is not a static method.
+     */
+    public abstract boolean isVoicemailNumber(PhoneAccountHandle accountHandle,
+            CharSequence number);
+
+    public boolean isVideoEnabled() {
+        if (!mHasCheckedForVideoEnabled) {
+            mIsVideoEnabled = CallUtil.isVideoEnabled(mContext);
+            mHasCheckedForVideoEnabled = true;
+        }
+        return mIsVideoEnabled;
+    }
+
+    /**
+     * Extract account label from PhoneAccount object.
+     */
+    public abstract String getAccountLabel(PhoneAccountHandle accountHandle);
+
+    /**
+     * Extract account color from PhoneAccount object.
+     */
+    public abstract int getAccountColor(PhoneAccountHandle accountHandle);
+
+    /**
+     * Determines if the PhoneAccount supports specifying a call subject (i.e. calling with a note)
+     * for outgoing calls.
+     *
+     * @param accountHandle The PhoneAccount handle.
+     * @return {@code true} if calling with a note is supported, {@code false} otherwise.
+     */
+    public abstract boolean doesAccountSupportCallSubject(PhoneAccountHandle accountHandle);
+}
diff --git a/src/com/android/dialer/calllog/calllogcache/CallLogCacheLollipop.java b/src/com/android/dialer/calllog/calllogcache/CallLogCacheLollipop.java
new file mode 100644
index 0000000..770cc9d
--- /dev/null
+++ b/src/com/android/dialer/calllog/calllogcache/CallLogCacheLollipop.java
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.dialer.calllog.calllogcache;
+
+import android.content.Context;
+import android.telecom.PhoneAccount;
+import android.telecom.PhoneAccountHandle;
+import android.telephony.PhoneNumberUtils;
+import android.text.TextUtils;
+
+/**
+ * This is a compatibility class for the CallLogCache for versions of dialer before Lollipop Mr1
+ * (the introduction of phone accounts).
+ *
+ * This class should not be initialized directly and instead be acquired from
+ * {@link CallLogCache#getCallLogCache}.
+ */
+class CallLogCacheLollipop extends CallLogCache {
+    private String mVoicemailNumber;
+
+    /* package */ CallLogCacheLollipop(Context context) {
+        super(context);
+    }
+
+    @Override
+    public boolean isVoicemailNumber(PhoneAccountHandle accountHandle, CharSequence number) {
+        if (TextUtils.isEmpty(number)) {
+            return false;
+        }
+
+        String numberString = number.toString();
+
+        if (!TextUtils.isEmpty(mVoicemailNumber)) {
+            return PhoneNumberUtils.compare(numberString, mVoicemailNumber);
+        }
+
+        if (PhoneNumberUtils.isVoiceMailNumber(numberString)) {
+            mVoicemailNumber = numberString;
+            return true;
+        }
+
+        return false;
+    }
+
+    @Override
+    public String getAccountLabel(PhoneAccountHandle accountHandle) {
+        return null;
+    }
+
+    @Override
+    public int getAccountColor(PhoneAccountHandle accountHandle) {
+        return PhoneAccount.NO_HIGHLIGHT_COLOR;
+    }
+
+    @Override
+    public boolean doesAccountSupportCallSubject(PhoneAccountHandle accountHandle) {
+        return false;
+    }
+}
diff --git a/src/com/android/dialer/calllog/TelecomCallLogCache.java b/src/com/android/dialer/calllog/calllogcache/CallLogCacheLollipopMr1.java
similarity index 64%
rename from src/com/android/dialer/calllog/TelecomCallLogCache.java
rename to src/com/android/dialer/calllog/calllogcache/CallLogCacheLollipopMr1.java
index 6363b91..d1e3f7b 100644
--- a/src/com/android/dialer/calllog/TelecomCallLogCache.java
+++ b/src/com/android/dialer/calllog/calllogcache/CallLogCacheLollipopMr1.java
@@ -14,67 +14,50 @@
  * limitations under the License
  */
 
-package com.android.dialer.calllog;
+package com.android.dialer.calllog.calllogcache;
 
 import android.content.Context;
-import android.provider.CallLog;
-import android.telecom.PhoneAccount;
 import android.telecom.PhoneAccountHandle;
-import android.telecom.TelecomManager;
 import android.text.TextUtils;
-import android.util.Log;
 import android.util.Pair;
 
-import com.android.contacts.common.CallUtil;
-import com.android.contacts.common.util.PhoneNumberHelper;
+import com.android.dialer.calllog.PhoneAccountUtils;
 import com.android.dialer.util.PhoneNumberUtil;
-import com.google.common.collect.Sets;
 
 import java.util.HashMap;
 import java.util.Map;
-import java.util.Set;
 
 /**
- * Keeps a cache of recently made queries to the Telecom process. The aim of this cache is to
- * reduce the number of cross-process requests to TelecomManager, which can negatively affect
- * performance.
+ * This is the CallLogCache for versions of dialer Lollipop Mr1 and above with support for
+ * multi-SIM devices.
  *
- * This is designed with the specific use case of the {@link CallLogAdapter} in mind.
+ * This class should not be initialized directly and instead be acquired from
+ * {@link CallLogCache#getCallLogCache}.
  */
-public class TelecomCallLogCache {
-    private final Context mContext;
-
+class CallLogCacheLollipopMr1 extends CallLogCache {
     // Maps from a phone-account/number pair to a boolean because multiple numbers could return true
     // for the voicemail number if those numbers are not pre-normalized.
-    // TODO: Dialer should be fixed so as not to check isVoicemail() so often but at the time of
-    // this writing, that was a much larger undertaking than creating this cache.
     private final Map<Pair<PhoneAccountHandle, CharSequence>, Boolean> mVoicemailQueryCache =
             new HashMap<>();
     private final Map<PhoneAccountHandle, String> mPhoneAccountLabelCache = new HashMap<>();
     private final Map<PhoneAccountHandle, Integer> mPhoneAccountColorCache = new HashMap<>();
     private final Map<PhoneAccountHandle, Boolean> mPhoneAccountCallWithNoteCache = new HashMap<>();
 
-    private boolean mHasCheckedForVideoEnabled;
-    private boolean mIsVideoEnabled;
-
-    public TelecomCallLogCache(Context context) {
-        mContext = context;
+    /* package */ CallLogCacheLollipopMr1(Context context) {
+        super(context);
     }
 
+    @Override
     public void reset() {
         mVoicemailQueryCache.clear();
         mPhoneAccountLabelCache.clear();
         mPhoneAccountColorCache.clear();
         mPhoneAccountCallWithNoteCache.clear();
 
-        mHasCheckedForVideoEnabled = false;
-        mIsVideoEnabled = false;
+        super.reset();
     }
 
-    /**
-     * Returns true if the given number is the number of the configured voicemail. To be able to
-     * mock-out this, it is not a static method.
-     */
+    @Override
     public boolean isVoicemailNumber(PhoneAccountHandle accountHandle, CharSequence number) {
         if (TextUtils.isEmpty(number)) {
             return false;
@@ -91,9 +74,7 @@
         }
     }
 
-    /**
-     * Extract account label from PhoneAccount object.
-     */
+    @Override
     public String getAccountLabel(PhoneAccountHandle accountHandle) {
         if (mPhoneAccountLabelCache.containsKey(accountHandle)) {
             return mPhoneAccountLabelCache.get(accountHandle);
@@ -104,9 +85,7 @@
         }
     }
 
-    /**
-     * Extract account color from PhoneAccount object.
-     */
+    @Override
     public int getAccountColor(PhoneAccountHandle accountHandle) {
         if (mPhoneAccountColorCache.containsKey(accountHandle)) {
             return mPhoneAccountColorCache.get(accountHandle);
@@ -117,21 +96,7 @@
         }
     }
 
-    public boolean isVideoEnabled() {
-        if (!mHasCheckedForVideoEnabled) {
-            mIsVideoEnabled = CallUtil.isVideoEnabled(mContext);
-            mHasCheckedForVideoEnabled = true;
-        }
-        return mIsVideoEnabled;
-    }
-
-    /**
-     * Determines if the PhoneAccount supports specifying a call subject (i.e. calling with a note)
-     * for outgoing calls.
-     *
-     * @param accountHandle The PhoneAccount handle.
-     * @return {@code true} if calling with a note is supported, {@code false} otherwise.
-     */
+    @Override
     public boolean doesAccountSupportCallSubject(PhoneAccountHandle accountHandle) {
         if (mPhoneAccountCallWithNoteCache.containsKey(accountHandle)) {
             return mPhoneAccountCallWithNoteCache.get(accountHandle);
diff --git a/src/com/android/dialer/compat/CallAudioStateCompat.java b/src/com/android/dialer/compat/CallAudioStateCompat.java
new file mode 100644
index 0000000..51009d0
--- /dev/null
+++ b/src/com/android/dialer/compat/CallAudioStateCompat.java
@@ -0,0 +1,331 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.dialer.compat;
+
+import android.os.Build;
+import android.os.Parcel;
+import android.os.Parcelable;
+import android.telecom.CallAudioState;
+
+import com.android.contacts.common.compat.SdkVersionOverride;
+
+import java.util.Locale;
+
+/**
+ * Compatibility class for {@link CallAudioState}
+ */
+public class CallAudioStateCompat {
+
+    /**
+     * Direct the audio stream through the device's earpiece.
+     */
+    public static final int ROUTE_EARPIECE = CallAudioState.ROUTE_EARPIECE;
+
+    /**
+     * Direct the audio stream through Bluetooth.
+     */
+    public static final int ROUTE_BLUETOOTH = CallAudioState.ROUTE_BLUETOOTH;
+
+    /**
+     * Direct the audio stream through a wired headset.
+     */
+    public static final int ROUTE_WIRED_HEADSET = CallAudioState.ROUTE_WIRED_HEADSET;
+
+    /**
+     * Direct the audio stream through the device's speakerphone.
+     */
+    public static final int ROUTE_SPEAKER = CallAudioState.ROUTE_SPEAKER;
+
+    /**
+     * Direct the audio stream through the device's earpiece or wired headset if one is connected.
+     */
+    public static final int ROUTE_WIRED_OR_EARPIECE = CallAudioState.ROUTE_WIRED_OR_EARPIECE;
+
+    private final CallAudioStateImpl mCallAudioState;
+
+    /**
+     * Constructor for a {@link CallAudioStateCompat} object.
+     *
+     * @param muted {@code true} if the call is muted, {@code false} otherwise.
+     * @param route The current audio route being used. Allowed values: {@link #ROUTE_EARPIECE}
+     * {@link #ROUTE_BLUETOOTH} {@link #ROUTE_WIRED_HEADSET} {@link #ROUTE_SPEAKER}
+     * @param supportedRouteMask Bit mask of all routes supported by this call. This should be a
+     * bitwise combination of the following values: {@link #ROUTE_EARPIECE} {@link #ROUTE_BLUETOOTH}
+     * {@link #ROUTE_WIRED_HEADSET} {@link #ROUTE_SPEAKER}
+     */
+    public CallAudioStateCompat(boolean muted, int route, int supportedRouteMask) {
+        if (SdkVersionOverride.getSdkVersion(Build.VERSION_CODES.M)
+                < Build.VERSION_CODES.M) {
+            mCallAudioState = new CallAudioStateBase(muted, route, supportedRouteMask);
+        } else {
+            mCallAudioState = new CallAudioStateMarshmallow(muted, route, supportedRouteMask);
+        }
+    }
+
+    /**
+     * @return {@code true} if the call is muted, {@code false} otherwise.
+     */
+    public boolean isMuted() {
+        return mCallAudioState.isMuted();
+    }
+
+    /**
+     * @return The current audio route being used.
+     */
+    public int getRoute() {
+        return mCallAudioState.getRoute();
+    }
+
+    /**
+     * @return Bit mask of all routes supported by this call.
+     */
+    public int getSupportedRouteMask() {
+        return mCallAudioState.getSupportedRouteMask();
+    }
+
+    /**
+     * Converts the provided audio route into a human readable string representation.
+     *
+     * @param route to convert into a string.
+     * @return String representation of the provided audio route.
+     */
+    public static String audioRouteToString(int route) {
+        if (SdkVersionOverride.getSdkVersion(Build.VERSION_CODES.M)
+                < Build.VERSION_CODES.M) {
+            return CallAudioStateBase.audioRouteToString(route);
+        }
+        return CallAudioStateMarshmallow.audioRouteToString(route);
+    }
+
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        CallAudioStateCompat that = (CallAudioStateCompat) o;
+
+        return mCallAudioState.equals(that.mCallAudioState);
+
+    }
+
+    @Override
+    public int hashCode() {
+        return mCallAudioState.hashCode();
+    }
+
+    @Override
+    public String toString() {
+        return mCallAudioState.toString();
+    }
+
+    private interface CallAudioStateImpl {
+        boolean isMuted();
+        int getRoute();
+        int getSupportedRouteMask();
+    }
+
+    /**
+     * CallAudioStateImpl to use if the Sdk version is lower than
+     * {@link android.os.Build.VERSION_CODES.M}
+     *
+     * Coped from {@link android.telecom.CallAudioState}
+     *
+     * Encapsulates the telecom audio state, including the current audio routing, supported audio
+     * routing and mute.
+     */
+    private static class CallAudioStateBase implements CallAudioStateImpl, Parcelable {
+
+        /**
+         * Bit mask of all possible audio routes.
+         */
+        private static final int ROUTE_ALL = ROUTE_EARPIECE | ROUTE_BLUETOOTH | ROUTE_WIRED_HEADSET
+                | ROUTE_SPEAKER;
+
+        private final boolean isMuted;
+        private final int route;
+        private final int supportedRouteMask;
+
+        /**
+         * Constructor for a {@link CallAudioStateBase} object.
+         *
+         * @param muted {@code true} if the call is muted, {@code false} otherwise.
+         * @param route The current audio route being used. Allowed values: {@link #ROUTE_EARPIECE}
+         *      {@link #ROUTE_BLUETOOTH}, {@link #ROUTE_WIRED_HEADSET}, {@link #ROUTE_SPEAKER}
+         * @param supportedRouteMask Bit mask of all routes supported by this call. This should be a
+         *      bitwise combination of the following values: {@link #ROUTE_EARPIECE},
+         *      {@link #ROUTE_BLUETOOTH}, {@link #ROUTE_WIRED_HEADSET}, {@link #ROUTE_SPEAKER}
+         */
+        public CallAudioStateBase(boolean muted, int route, int supportedRouteMask) {
+            this.isMuted = muted;
+            this.route = route;
+            this.supportedRouteMask = supportedRouteMask;
+        }
+
+        @Override
+        public boolean equals(Object obj) {
+            if (obj == null) {
+                return false;
+            }
+            if (!(obj instanceof CallAudioStateBase)) {
+                return false;
+            }
+            CallAudioStateBase state = (CallAudioStateBase) obj;
+            return isMuted() == state.isMuted() && getRoute() == state.getRoute() &&
+                    getSupportedRouteMask() == state.getSupportedRouteMask();
+        }
+
+        @Override
+        public String toString() {
+            return String.format(Locale.US,
+                    "[AudioState isMuted: %b, route: %s, supportedRouteMask: %s]",
+                    isMuted,
+                    audioRouteToString(route),
+                    audioRouteToString(supportedRouteMask));
+        }
+
+        /**
+         * @return {@code true} if the call is muted, {@code false} otherwise.
+         */
+        @Override
+        public boolean isMuted() {
+            return isMuted;
+        }
+
+        /**
+         * @return The current audio route being used.
+         */
+        public int getRoute() {
+            return route;
+        }
+
+        /**
+         * @return Bit mask of all routes supported by this call.
+         */
+        public int getSupportedRouteMask() {
+            return supportedRouteMask;
+        }
+
+        /**
+         * Converts the provided audio route into a human readable string representation.
+         *
+         * @param route to convert into a string.
+         * @return String representation of the provided audio route.
+         */
+        public static String audioRouteToString(int route) {
+            if (route == 0 || (route & ~ROUTE_ALL) != 0x0) {
+                return "UNKNOWN";
+            }
+
+            StringBuffer buffer = new StringBuffer();
+            if ((route & ROUTE_EARPIECE) == ROUTE_EARPIECE) {
+                listAppend(buffer, "EARPIECE");
+            }
+            if ((route & ROUTE_BLUETOOTH) == ROUTE_BLUETOOTH) {
+                listAppend(buffer, "BLUETOOTH");
+            }
+            if ((route & ROUTE_WIRED_HEADSET) == ROUTE_WIRED_HEADSET) {
+                listAppend(buffer, "WIRED_HEADSET");
+            }
+            if ((route & ROUTE_SPEAKER) == ROUTE_SPEAKER) {
+                listAppend(buffer, "SPEAKER");
+            }
+
+            return buffer.toString();
+        }
+
+        /**
+         * Responsible for creating AudioState objects for deserialized Parcels.
+         */
+        public static final Parcelable.Creator<CallAudioStateBase> CREATOR =
+                new Parcelable.Creator<CallAudioStateBase>() {
+
+                    @Override
+                    public CallAudioStateBase createFromParcel(Parcel source) {
+                        boolean isMuted = source.readByte() == 0 ? false : true;
+                        int route = source.readInt();
+                        int supportedRouteMask = source.readInt();
+                        return new CallAudioStateBase(isMuted, route, supportedRouteMask);
+                    }
+
+                    @Override
+                    public CallAudioStateBase[] newArray(int size) {
+                        return new CallAudioStateBase[size];
+                    }
+                };
+
+        /**
+         * {@inheritDoc}
+         */
+        @Override
+        public int describeContents() {
+            return 0;
+        }
+
+        /**
+         * Writes AudioState object into a serializeable Parcel.
+         */
+        @Override
+        public void writeToParcel(Parcel destination, int flags) {
+            destination.writeByte((byte) (isMuted ? 1 : 0));
+            destination.writeInt(route);
+            destination.writeInt(supportedRouteMask);
+        }
+
+        private static void listAppend(StringBuffer buffer, String str) {
+            if (buffer.length() > 0) {
+                buffer.append(", ");
+            }
+            buffer.append(str);
+        }
+    }
+
+    /**
+     * CallAudioStateImpl to use if the Sdk version is at least
+     * {@link android.os.Build.VERSION_CODES.M}
+     */
+    private static class CallAudioStateMarshmallow implements CallAudioStateImpl {
+
+        private final CallAudioState mCallAudioStateDelegate;
+
+        public CallAudioStateMarshmallow(boolean muted, int route, int supportedRouteMask) {
+            mCallAudioStateDelegate = new CallAudioState(muted, route, supportedRouteMask);
+        }
+
+        @Override
+        public boolean isMuted() {
+            return mCallAudioStateDelegate.isMuted();
+        }
+
+        @Override
+        public int getRoute() {
+            return mCallAudioStateDelegate.getRoute();
+        }
+
+        @Override
+        public int getSupportedRouteMask() {
+            return mCallAudioStateDelegate.getSupportedRouteMask();
+        }
+
+        public static String audioRouteToString(int route) {
+            return CallAudioState.audioRouteToString(route);
+        }
+    }
+}
diff --git a/src/com/android/dialer/compat/DialerCompatUtils.java b/src/com/android/dialer/compat/DialerCompatUtils.java
new file mode 100644
index 0000000..1bcdd14
--- /dev/null
+++ b/src/com/android/dialer/compat/DialerCompatUtils.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.dialer.compat;
+
+import android.os.Build;
+
+import com.android.contacts.common.compat.SdkVersionOverride;
+
+public final class DialerCompatUtils {
+    /**
+     * Determines if this version is compatible with a default dialer. Can also force the version to
+     * be lower through SdkVersionOverride.
+     *
+     * @return {@code true} if default dialer is a feature on this device, {@code false} otherwise.
+     */
+    public static boolean isDefaultDialerCompatible() {
+        return SdkVersionOverride.getSdkVersion(Build.VERSION_CODES.LOLLIPOP)
+                >= Build.VERSION_CODES.M;
+    }
+
+    /**
+     * Determines if this version has access to the
+     * {@link android.provider.CallLog.Calls.CACHED_PHOTO_URI} column
+     *
+     * @return {@code true} if {@link android.provider.CallLog.Calls.CACHED_PHOTO_URI} is available,
+     * {@code false} otherwise
+     */
+    public static boolean isCallsCachedPhotoUriCompatible() {
+        return SdkVersionOverride.getSdkVersion(Build.VERSION_CODES.M)
+                >= Build.VERSION_CODES.M;
+    }
+}
\ No newline at end of file
diff --git a/src/com/android/dialer/compat/SettingsCompat.java b/src/com/android/dialer/compat/SettingsCompat.java
new file mode 100644
index 0000000..474a600
--- /dev/null
+++ b/src/com/android/dialer/compat/SettingsCompat.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.dialer.compat;
+
+import android.content.Context;
+import android.os.Build;
+import android.os.Build.VERSION_CODES;
+import android.provider.Settings;
+
+import com.android.contacts.common.compat.SdkVersionOverride;
+
+/**
+ * Compatibility class for {@link android.provider.Settings}
+ */
+public class SettingsCompat {
+
+    public static class System {
+
+        /**
+         * Compatibility version of {@link android.provider.Settings.System#canWrite(Context)}
+         *
+         * Note: Since checking preferences at runtime started in M, this method always returns
+         * {@code true} for SDK versions prior to 23. In those versions, the app wouldn't be
+         * installed if it didn't have the proper permission
+         */
+        public static boolean canWrite(Context context) {
+            if (SdkVersionOverride.getSdkVersion(VERSION_CODES.LOLLIPOP) >= Build.VERSION_CODES.M) {
+                return Settings.System.canWrite(context);
+            }
+            return true;
+        }
+    }
+
+}
diff --git a/src/com/android/dialer/dialpad/DialpadFragment.java b/src/com/android/dialer/dialpad/DialpadFragment.java
index 760b020..246b0d7 100644
--- a/src/com/android/dialer/dialpad/DialpadFragment.java
+++ b/src/com/android/dialer/dialpad/DialpadFragment.java
@@ -274,6 +274,11 @@
     }
 
     @Override
+    public Context getContext() {
+        return getActivity();
+    }
+
+    @Override
     public void beforeTextChanged(CharSequence s, int start, int count, int after) {
         mWasEmptyBeforeTextChange = TextUtils.isEmpty(s);
     }
diff --git a/src/com/android/dialer/dialpad/SmartDialNameMatcher.java b/src/com/android/dialer/dialpad/SmartDialNameMatcher.java
index 0126864..a54fe16 100644
--- a/src/com/android/dialer/dialpad/SmartDialNameMatcher.java
+++ b/src/com/android/dialer/dialpad/SmartDialNameMatcher.java
@@ -16,6 +16,7 @@
 
 package com.android.dialer.dialpad;
 
+import android.support.annotation.Nullable;
 import android.text.TextUtils;
 
 import com.android.dialer.dialpad.SmartDialPrefix.PhoneNumberTokens;
@@ -123,7 +124,11 @@
      *         SmartDialMatchPosition with the matching positions otherwise
      */
     @VisibleForTesting
+    @Nullable
     public SmartDialMatchPosition matchesNumber(String phoneNumber, String query, boolean useNanp) {
+        if (TextUtils.isEmpty(phoneNumber)) {
+            return null;
+        }
         StringBuilder builder = new StringBuilder();
         constructEmptyMask(builder, phoneNumber.length());
         mPhoneNumberMatchMask = builder.toString();
diff --git a/src/com/android/dialer/filterednumber/BlockNumberDialogFragment.java b/src/com/android/dialer/filterednumber/BlockNumberDialogFragment.java
index 0f4bd74..de4fe99 100644
--- a/src/com/android/dialer/filterednumber/BlockNumberDialogFragment.java
+++ b/src/com/android/dialer/filterednumber/BlockNumberDialogFragment.java
@@ -123,6 +123,11 @@
     }
 
     @Override
+    public Context getContext() {
+        return getActivity();
+    }
+
+    @Override
     public Dialog onCreateDialog(Bundle savedInstanceState) {
         super.onCreateDialog(savedInstanceState);
         final boolean isBlocked = getArguments().containsKey(ARG_BLOCK_ID);
diff --git a/src/com/android/dialer/filterednumber/BlockedNumbersAdapter.java b/src/com/android/dialer/filterednumber/BlockedNumbersAdapter.java
index e33b0f8..10a4f5a 100644
--- a/src/com/android/dialer/filterednumber/BlockedNumbersAdapter.java
+++ b/src/com/android/dialer/filterednumber/BlockedNumbersAdapter.java
@@ -67,7 +67,7 @@
                         number,
                         countryIso,
                         PhoneNumberUtils.formatNumber(number, countryIso),
-                        R.id.blocked_number_fragment,
+                        R.id.blocked_numbers_activity_container,
                         getFragmentManager(),
                         new BlockNumberDialogFragment.Callback() {
                             @Override
diff --git a/src/com/android/dialer/filterednumber/BlockedNumbersFragment.java b/src/com/android/dialer/filterednumber/BlockedNumbersFragment.java
index 881ec04..e231c6a 100644
--- a/src/com/android/dialer/filterednumber/BlockedNumbersFragment.java
+++ b/src/com/android/dialer/filterednumber/BlockedNumbersFragment.java
@@ -23,6 +23,7 @@
 import android.database.Cursor;
 import android.graphics.drawable.ColorDrawable;
 import android.os.Bundle;
+import android.support.v4.app.ActivityCompat;
 import android.support.v7.app.ActionBar;
 import android.support.v7.app.AppCompatActivity;
 import android.view.LayoutInflater;
@@ -51,6 +52,11 @@
     private View mBlockedNumberListDivider;
 
     @Override
+    public Context getContext() {
+        return getActivity();
+    }
+
+    @Override
     public void onActivityCreated(Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
 
@@ -62,8 +68,8 @@
         ImageView addNumberIcon = (ImageView) getActivity().findViewById(R.id.add_number_icon);
         LetterTileDrawable drawable = new LetterTileDrawable(getResources());
         drawable.setLetter(ADD_BLOCKED_NUMBER_ICON_LETTER);
-        drawable.setColor(getResources().getColor(R.color.add_blocked_number_icon_color,
-                getActivity().getTheme()));
+        drawable.setColor(ActivityCompat.getColor(getActivity(),
+                R.color.add_blocked_number_icon_color));
         drawable.setIsCircular(true);
         addNumberIcon.setImageDrawable(drawable);
 
@@ -103,8 +109,8 @@
         super.onResume();
 
         ActionBar actionBar = ((AppCompatActivity) getActivity()).getSupportActionBar();
-        ColorDrawable backgroundDrawable =
-                new ColorDrawable(getActivity().getColor(R.color.dialer_theme_color));
+        ColorDrawable backgroundDrawable = new ColorDrawable(
+                ActivityCompat.getColor(getActivity(), R.color.dialer_theme_color));
         actionBar.setBackgroundDrawable(backgroundDrawable);
         actionBar.setDisplayShowCustomEnabled(false);
         actionBar.setDisplayHomeAsUpEnabled(true);
diff --git a/src/com/android/dialer/filterednumber/FilteredNumbersUtil.java b/src/com/android/dialer/filterednumber/FilteredNumbersUtil.java
index 23ce8a8..e3870de 100644
--- a/src/com/android/dialer/filterednumber/FilteredNumbersUtil.java
+++ b/src/com/android/dialer/filterednumber/FilteredNumbersUtil.java
@@ -31,10 +31,6 @@
 import android.text.TextUtils;
 import android.widget.Toast;
 
-import java.util.LinkedList;
-import java.util.List;
-import java.util.concurrent.TimeUnit;
-
 import com.android.contacts.common.testing.NeededForTesting;
 import com.android.dialer.R;
 import com.android.dialer.database.FilteredNumberAsyncQueryHandler;
@@ -44,6 +40,8 @@
 import com.android.dialer.logging.InteractionEvent;
 import com.android.dialer.logging.Logger;
 
+import java.util.concurrent.TimeUnit;
+
 /**
  * Utility to help with tasks related to filtered numbers.
  */
@@ -53,11 +51,11 @@
     private static final long RECENT_EMERGENCY_CALL_THRESHOLD_MS = 1000 * 60 * 60 * 24 * 2;
 
     // Pref key for storing the time of end of the last emergency call in milliseconds after epoch.
-    private static final String LAST_EMERGENCY_CALL_MS_PREF_KEY = "last_emergency_call_ms";
+    protected static final String LAST_EMERGENCY_CALL_MS_PREF_KEY = "last_emergency_call_ms";
 
     // Pref key for storing whether a notification has been dispatched to notify the user that call
     // blocking has been disabled because of a recent emergency call.
-    private static final String NOTIFIED_CALL_BLOCKING_DISABLED_BY_EMERGENCY_CALL_PREF_KEY =
+    protected static final String NOTIFIED_CALL_BLOCKING_DISABLED_BY_EMERGENCY_CALL_PREF_KEY =
             "notified_call_blocking_disabled_by_emergency_call";
 
     public static final String CALL_BLOCKING_NOTIFICATION_TAG = "call_blocking";
@@ -241,6 +239,10 @@
             return false;
         }
 
+        if (hasRecentEmergencyCall(context)) {
+            return false;
+        }
+
         final Cursor cursor = context.getContentResolver().query(
                 FilteredNumber.CONTENT_URI,
                 new String[] {
diff --git a/src/com/android/dialer/filterednumber/NumbersAdapter.java b/src/com/android/dialer/filterednumber/NumbersAdapter.java
index 1706107..4e2e578 100644
--- a/src/com/android/dialer/filterednumber/NumbersAdapter.java
+++ b/src/com/android/dialer/filterednumber/NumbersAdapter.java
@@ -20,6 +20,7 @@
 import android.content.Context;
 import android.content.res.Resources;
 import android.provider.ContactsContract;
+import android.provider.ContactsContract.CommonDataKinds.Phone;
 import android.text.BidiFormatter;
 import android.text.TextDirectionHeuristics;
 import android.text.TextUtils;
@@ -30,6 +31,7 @@
 
 import com.android.contacts.common.ContactPhotoManager;
 import com.android.contacts.common.ContactPhotoManager.DefaultImageRequest;
+import com.android.contacts.common.compat.CompatUtils;
 import com.android.contacts.common.util.UriUtils;
 import com.android.dialer.R;
 import com.android.dialer.calllog.ContactInfo;
@@ -63,9 +65,9 @@
         final QuickContactBadge quickContactBadge =
                 (QuickContactBadge) view.findViewById(R.id.quick_contact_photo);
         quickContactBadge.setOverlay(null);
-        quickContactBadge.setPrioritizedMimeType(
-                ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE);
-
+        if (CompatUtils.hasPrioritizedMimeType()) {
+            quickContactBadge.setPrioritizedMimeType(Phone.CONTENT_ITEM_TYPE);
+        }
         final ContactInfo info = mContactInfoHelper.lookupNumber(number, countryIso);
         final CharSequence locationOrType = getNumberTypeOrLocation(info);
         final String displayNumber = getDisplayNumber(info);
diff --git a/src/com/android/dialer/filterednumber/ViewNumbersToImportFragment.java b/src/com/android/dialer/filterednumber/ViewNumbersToImportFragment.java
index 9912416..153d73c 100644
--- a/src/com/android/dialer/filterednumber/ViewNumbersToImportFragment.java
+++ b/src/com/android/dialer/filterednumber/ViewNumbersToImportFragment.java
@@ -44,6 +44,11 @@
     private ViewNumbersToImportAdapter mAdapter;
 
     @Override
+    public Context getContext() {
+        return getActivity();
+    }
+
+    @Override
     public void onActivityCreated(Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
 
diff --git a/src/com/android/dialer/list/AllContactsFragment.java b/src/com/android/dialer/list/AllContactsFragment.java
index 0f31ff8..7e76279 100644
--- a/src/com/android/dialer/list/AllContactsFragment.java
+++ b/src/com/android/dialer/list/AllContactsFragment.java
@@ -28,11 +28,13 @@
 import android.net.Uri;
 import android.provider.ContactsContract.CommonDataKinds.Phone;
 import android.provider.ContactsContract.QuickContact;
+import android.support.v13.app.FragmentCompat;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.AdapterView;
 
+import com.android.contacts.common.compat.CompatUtils;
 import com.android.contacts.common.list.ContactEntryListAdapter;
 import com.android.contacts.common.list.ContactEntryListFragment;
 import com.android.contacts.common.list.ContactListFilter;
@@ -49,7 +51,8 @@
  * Fragments to show all contacts with phone numbers.
  */
 public class AllContactsFragment extends ContactEntryListFragment<ContactEntryListAdapter>
-        implements OnEmptyViewActionButtonClickedListener {
+        implements OnEmptyViewActionButtonClickedListener,
+        FragmentCompat.OnRequestPermissionsResultCallback {
 
     private static final int READ_CONTACTS_PERMISSION_REQUEST_CODE = 1;
 
@@ -150,8 +153,13 @@
     public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
         final Uri uri = (Uri) view.getTag();
         if (uri != null) {
-            QuickContact.showQuickContact(getContext(), view, uri, null,
-                    Phone.CONTENT_ITEM_TYPE);
+            if (CompatUtils.hasPrioritizedMimeType()) {
+                QuickContact.showQuickContact(getContext(), view, uri, null,
+                        Phone.CONTENT_ITEM_TYPE);
+            } else {
+                QuickContact.showQuickContact(getActivity(), view, uri, QuickContact.MODE_LARGE,
+                        null);
+            }
         }
     }
 
@@ -168,7 +176,8 @@
         }
 
         if (!PermissionsUtil.hasPermission(activity, READ_CONTACTS)) {
-            requestPermissions(new String[] {READ_CONTACTS}, READ_CONTACTS_PERMISSION_REQUEST_CODE);
+          FragmentCompat.requestPermissions(this, new String[] {READ_CONTACTS},
+              READ_CONTACTS_PERMISSION_REQUEST_CODE);
         } else {
             // Add new contact
             DialerUtils.startActivityWithErrorToast(activity, IntentUtil.getNewContactIntent(),
diff --git a/src/com/android/dialer/list/PhoneFavoriteSquareTileView.java b/src/com/android/dialer/list/PhoneFavoriteSquareTileView.java
index c12bed7..69a230c 100644
--- a/src/com/android/dialer/list/PhoneFavoriteSquareTileView.java
+++ b/src/com/android/dialer/list/PhoneFavoriteSquareTileView.java
@@ -24,6 +24,7 @@
 import android.widget.ImageButton;
 import android.widget.TextView;
 
+import com.android.contacts.common.compat.CompatUtils;
 import com.android.contacts.common.list.ContactEntry;
 import com.android.dialer.R;
 
@@ -63,8 +64,13 @@
     }
 
     private void launchQuickContact() {
-        QuickContact.showQuickContact(getContext(), PhoneFavoriteSquareTileView.this,
-                getLookupUri(), null, Phone.CONTENT_ITEM_TYPE);
+        if (CompatUtils.hasPrioritizedMimeType()) {
+            QuickContact.showQuickContact(getContext(), PhoneFavoriteSquareTileView.this,
+                    getLookupUri(), null, Phone.CONTENT_ITEM_TYPE);
+        } else {
+            QuickContact.showQuickContact(getContext(), PhoneFavoriteSquareTileView.this,
+                    getLookupUri(), QuickContact.MODE_LARGE, null);
+        }
     }
 
     @Override
diff --git a/src/com/android/dialer/list/RegularSearchFragment.java b/src/com/android/dialer/list/RegularSearchFragment.java
index 30b01c0..d067b65 100644
--- a/src/com/android/dialer/list/RegularSearchFragment.java
+++ b/src/com/android/dialer/list/RegularSearchFragment.java
@@ -19,6 +19,7 @@
 
 import android.app.Activity;
 import android.content.pm.PackageManager;
+import android.support.v13.app.FragmentCompat;
 import android.view.LayoutInflater;
 import android.view.ViewGroup;
 
@@ -37,7 +38,8 @@
 import com.android.dialer.widget.EmptyContentView.OnEmptyViewActionButtonClickedListener;
 
 public class RegularSearchFragment extends SearchFragment
-        implements OnEmptyViewActionButtonClickedListener {
+        implements OnEmptyViewActionButtonClickedListener,
+        FragmentCompat.OnRequestPermissionsResultCallback {
 
     public static final int PERMISSION_REQUEST_CODE = 1;
 
@@ -123,7 +125,8 @@
         }
 
         if (READ_CONTACTS.equals(mPermissionToRequest)) {
-            requestPermissions(new String[] {mPermissionToRequest}, PERMISSION_REQUEST_CODE);
+          FragmentCompat.requestPermissions(this, new String[] {mPermissionToRequest},
+              PERMISSION_REQUEST_CODE);
         }
     }
 
diff --git a/src/com/android/dialer/list/SmartDialSearchFragment.java b/src/com/android/dialer/list/SmartDialSearchFragment.java
index a230e6e..4984d95 100644
--- a/src/com/android/dialer/list/SmartDialSearchFragment.java
+++ b/src/com/android/dialer/list/SmartDialSearchFragment.java
@@ -22,6 +22,7 @@
 import android.database.Cursor;
 import android.net.Uri;
 import android.os.Bundle;
+import android.support.v13.app.FragmentCompat;
 import android.util.Log;
 import android.view.View;
 
@@ -40,7 +41,8 @@
  * Implements a fragment to load and display SmartDial search results.
  */
 public class SmartDialSearchFragment extends SearchFragment
-        implements EmptyContentView.OnEmptyViewActionButtonClickedListener {
+        implements EmptyContentView.OnEmptyViewActionButtonClickedListener,
+        FragmentCompat.OnRequestPermissionsResultCallback {
     private static final String TAG = SmartDialSearchFragment.class.getSimpleName();
 
     private static final int CALL_PHONE_PERMISSION_REQUEST_CODE = 1;
@@ -108,7 +110,8 @@
             return;
         }
 
-        requestPermissions(new String[] {CALL_PHONE}, CALL_PHONE_PERMISSION_REQUEST_CODE);
+        FragmentCompat.requestPermissions(this, new String[] {CALL_PHONE},
+            CALL_PHONE_PERMISSION_REQUEST_CODE);
     }
 
     @Override
diff --git a/src/com/android/dialer/list/SpeedDialFragment.java b/src/com/android/dialer/list/SpeedDialFragment.java
index 19180f8..fcfff21 100644
--- a/src/com/android/dialer/list/SpeedDialFragment.java
+++ b/src/com/android/dialer/list/SpeedDialFragment.java
@@ -31,6 +31,7 @@
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.Trace;
+import android.support.v13.app.FragmentCompat;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -63,7 +64,8 @@
  */
 public class SpeedDialFragment extends Fragment implements OnItemClickListener,
         PhoneFavoritesTileAdapter.OnDataSetChangedForAnimationListener,
-        EmptyContentView.OnEmptyViewActionButtonClickedListener {
+        EmptyContentView.OnEmptyViewActionButtonClickedListener,
+        FragmentCompat.OnRequestPermissionsResultCallback {
 
     private static final int READ_CONTACTS_PERMISSION_REQUEST_CODE = 1;
 
@@ -482,7 +484,8 @@
         }
 
         if (!PermissionsUtil.hasPermission(activity, READ_CONTACTS)) {
-            requestPermissions(new String[] {READ_CONTACTS}, READ_CONTACTS_PERMISSION_REQUEST_CODE);
+          FragmentCompat.requestPermissions(this, new String[] {READ_CONTACTS},
+              READ_CONTACTS_PERMISSION_REQUEST_CODE);
         } else {
             // Switch tabs
             ((HostInterface) activity).showAllContactsTab();
diff --git a/src/com/android/dialer/settings/DefaultRingtonePreference.java b/src/com/android/dialer/settings/DefaultRingtonePreference.java
index a174381..a8a23fd 100644
--- a/src/com/android/dialer/settings/DefaultRingtonePreference.java
+++ b/src/com/android/dialer/settings/DefaultRingtonePreference.java
@@ -16,17 +16,16 @@
 
 package com.android.dialer.settings;
 
-import android.app.AppOpsManager;
 import android.content.Context;
 import android.content.Intent;
 import android.media.RingtoneManager;
 import android.net.Uri;
 import android.preference.RingtonePreference;
-import android.provider.Settings;
 import android.util.AttributeSet;
 import android.widget.Toast;
 
 import com.android.dialer.R;
+import com.android.dialer.compat.SettingsCompat;
 
 /**
  * RingtonePreference which doesn't show default ringtone setting.
@@ -49,7 +48,7 @@
 
     @Override
     protected void onSaveRingtone(Uri ringtoneUri) {
-        if (!Settings.System.canWrite(getContext())) {
+        if (!SettingsCompat.System.canWrite(getContext())) {
             Toast.makeText(
                     getContext(),
                     getContext().getResources().getString(R.string.toast_cannot_write_system_settings),
diff --git a/src/com/android/dialer/settings/DialerSettingsActivity.java b/src/com/android/dialer/settings/DialerSettingsActivity.java
index d0bfbc2..d7b8e11 100644
--- a/src/com/android/dialer/settings/DialerSettingsActivity.java
+++ b/src/com/android/dialer/settings/DialerSettingsActivity.java
@@ -18,6 +18,7 @@
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.UserManager;
 import android.preference.PreferenceManager;
@@ -27,7 +28,9 @@
 import android.view.MenuItem;
 import android.widget.Toast;
 
+import com.android.contacts.common.compat.SdkVersionOverride;
 import com.android.dialer.R;
+import com.android.dialer.compat.SettingsCompat;
 import com.android.dialer.filterednumber.BlockedNumbersSettingsActivity;
 
 import java.util.List;
@@ -54,45 +57,53 @@
         soundSettingsHeader.id = R.id.settings_header_sounds_and_vibration;
         target.add(soundSettingsHeader);
 
-        Header quickResponseSettingsHeader = new Header();
-        Intent quickResponseSettingsIntent =
-                new Intent(TelecomManager.ACTION_SHOW_RESPOND_VIA_SMS_SETTINGS);
-        quickResponseSettingsHeader.titleRes = R.string.respond_via_sms_setting_title;
-        quickResponseSettingsHeader.intent = quickResponseSettingsIntent;
-        target.add(quickResponseSettingsHeader);
+        if (SdkVersionOverride.getSdkVersion(Build.VERSION_CODES.M)
+                >= Build.VERSION_CODES.M) {
+            Header quickResponseSettingsHeader = new Header();
+            Intent quickResponseSettingsIntent =
+                    new Intent(TelecomManager.ACTION_SHOW_RESPOND_VIA_SMS_SETTINGS);
+            quickResponseSettingsHeader.titleRes = R.string.respond_via_sms_setting_title;
+            quickResponseSettingsHeader.intent = quickResponseSettingsIntent;
+            target.add(quickResponseSettingsHeader);
+        }
+
 
         TelephonyManager telephonyManager =
                 (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
 
-        // Only show call setting menus if the current user is the primary/owner user.
-        if (isPrimaryUser()) {
-            // Show "Call Settings" if there is one SIM and "Phone Accounts" if there are more.
-            if (telephonyManager.getPhoneCount() <= 1) {
-                Header callSettingsHeader = new Header();
-                Intent callSettingsIntent = new Intent(TelecomManager.ACTION_SHOW_CALL_SETTINGS);
-                callSettingsIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
+        // "Call Settings" (full settings) is shown if the current user is primary user and there 
+        // is only one SIM. Before N, "Calling accounts" setting is shown if the current user is 
+        // primary user and there are multiple SIMs. In N+, "Calling accounts" is shown whenever
+        // "Call Settings" is not shown.
+        boolean isPrimaryUser = isPrimaryUser();
+        if (isPrimaryUser && telephonyManager.getPhoneCount() <= 1) {
+            Header callSettingsHeader = new Header();
+            Intent callSettingsIntent = new Intent(TelecomManager.ACTION_SHOW_CALL_SETTINGS);
+            callSettingsIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
 
-                callSettingsHeader.titleRes = R.string.call_settings_label;
-                callSettingsHeader.intent = callSettingsIntent;
-                target.add(callSettingsHeader);
-            } else {
-                Header phoneAccountSettingsHeader = new Header();
-                Intent phoneAccountSettingsIntent =
-                        new Intent(TelecomManager.ACTION_CHANGE_PHONE_ACCOUNTS);
-                phoneAccountSettingsIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
+            callSettingsHeader.titleRes = R.string.call_settings_label;
+            callSettingsHeader.intent = callSettingsIntent;
+            target.add(callSettingsHeader);
+        } else if (android.os.Build.VERSION.CODENAME.startsWith("N") || isPrimaryUser) {
+            Header phoneAccountSettingsHeader = new Header();
+            Intent phoneAccountSettingsIntent =
+                    new Intent(TelecomManager.ACTION_CHANGE_PHONE_ACCOUNTS);
+            phoneAccountSettingsIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
 
-                phoneAccountSettingsHeader.titleRes = R.string.phone_account_settings_label;
-                phoneAccountSettingsHeader.intent = phoneAccountSettingsIntent;
-                target.add(phoneAccountSettingsHeader);
-            }
-
+            phoneAccountSettingsHeader.titleRes = R.string.phone_account_settings_label;
+            phoneAccountSettingsHeader.intent = phoneAccountSettingsIntent;
+            target.add(phoneAccountSettingsHeader);
+        }
+        if (isPrimaryUser) {
             Header blockedCallsHeader = new Header();
             blockedCallsHeader.titleRes = R.string.manage_blocked_numbers_label;
             blockedCallsHeader.intent = new Intent(this, BlockedNumbersSettingsActivity.class);
             target.add(blockedCallsHeader);
 
-            if (telephonyManager.isTtyModeSupported()
-                    || telephonyManager.isHearingAidCompatibilitySupported()) {
+            if (SdkVersionOverride.getSdkVersion(Build.VERSION_CODES.M)
+                    >= Build.VERSION_CODES.M
+                    && (telephonyManager.isTtyModeSupported()
+                    || telephonyManager.isHearingAidCompatibilitySupported())) {
                 Header accessibilitySettingsHeader = new Header();
                 Intent accessibilitySettingsIntent =
                         new Intent(TelecomManager.ACTION_SHOW_CALL_ACCESSIBILITY_SETTINGS);
@@ -109,7 +120,7 @@
             // If we don't have the permission to write to system settings, go to system sound
             // settings instead. Otherwise, perform the super implementation (which launches our
             // own preference fragment.
-            if (!Settings.System.canWrite(this)) {
+            if (!SettingsCompat.System.canWrite(this)) {
                 Toast.makeText(
                         this,
                         getResources().getString(R.string.toast_cannot_write_system_settings),
diff --git a/src/com/android/dialer/settings/SoundSettingsFragment.java b/src/com/android/dialer/settings/SoundSettingsFragment.java
index 8384700..59f8798 100644
--- a/src/com/android/dialer/settings/SoundSettingsFragment.java
+++ b/src/com/android/dialer/settings/SoundSettingsFragment.java
@@ -16,10 +16,9 @@
 
 package com.android.dialer.settings;
 
-import android.app.AppOpsManager;
 import android.content.Context;
-import android.content.Intent;
 import android.media.RingtoneManager;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
@@ -32,21 +31,13 @@
 import android.provider.Settings;
 import android.telephony.CarrierConfigManager;
 import android.telephony.TelephonyManager;
-import android.view.MenuItem;
 import android.widget.Toast;
 
-import com.android.contacts.common.util.PermissionsUtil;
+import com.android.contacts.common.compat.SdkVersionOverride;
 import com.android.dialer.R;
+import com.android.dialer.compat.SettingsCompat;
 import com.android.phone.common.util.SettingsUtil;
 
-import java.lang.Boolean;
-import java.lang.CharSequence;
-import java.lang.Object;
-import java.lang.Override;
-import java.lang.Runnable;
-import java.lang.String;
-import java.lang.Thread;
-
 public class SoundSettingsFragment extends PreferenceFragment
         implements Preference.OnPreferenceChangeListener {
 
@@ -88,6 +79,11 @@
     };
 
     @Override
+    public Context getContext() {
+        return getActivity();
+    }
+
+    @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
@@ -115,7 +111,8 @@
 
         TelephonyManager telephonyManager =
                 (TelephonyManager) getActivity().getSystemService(Context.TELEPHONY_SERVICE);
-        if (telephonyManager.canChangeDtmfToneLength()
+        if (SdkVersionOverride.getSdkVersion(Build.VERSION_CODES.M) >= Build.VERSION_CODES.M
+                && telephonyManager.canChangeDtmfToneLength()
                 && (telephonyManager.isWorldPhone() || !shouldHideCarrierSettings())) {
             mDtmfToneLength.setOnPreferenceChangeListener(this);
             mDtmfToneLength.setValueIndex(
@@ -132,7 +129,7 @@
     public void onResume() {
         super.onResume();
 
-        if (!Settings.System.canWrite(getContext())) {
+        if (!SettingsCompat.System.canWrite(getContext())) {
             // If the user launches this setting fragment, then toggles the WRITE_SYSTEM_SETTINGS
             // AppOp, then close the fragment since there is nothing useful to do.
             getActivity().onBackPressed();
@@ -155,7 +152,7 @@
      */
     @Override
     public boolean onPreferenceChange(Preference preference, Object objValue) {
-        if (!Settings.System.canWrite(getContext())) {
+        if (!SettingsCompat.System.canWrite(getContext())) {
             // A user shouldn't be able to get here, but this protects against monkey crashes.
             Toast.makeText(
                     getContext(),
@@ -181,7 +178,7 @@
      */
     @Override
     public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
-        if (!Settings.System.canWrite(getContext())) {
+        if (!SettingsCompat.System.canWrite(getContext())) {
             Toast.makeText(
                     getContext(),
                     getResources().getString(R.string.toast_cannot_write_system_settings),
diff --git a/src/com/android/dialer/util/AppCompatConstants.java b/src/com/android/dialer/util/AppCompatConstants.java
index 1d52eee..0bb78df 100644
--- a/src/com/android/dialer/util/AppCompatConstants.java
+++ b/src/com/android/dialer/util/AppCompatConstants.java
@@ -27,4 +27,6 @@
     public static final int CALLS_REJECTED_TYPE = 5;
     // Added to android.provider.CallLog.Calls in N+.
     public static final int CALLS_BLOCKED_TYPE = 6;
+    // Added to android.provider.CallLog.Calls in N+.
+    public static final String POST_DIAL_DIGITS = "post_dial_digits";
 }
diff --git a/src/com/android/dialer/util/TelecomUtil.java b/src/com/android/dialer/util/TelecomUtil.java
index bab1ade..a617af6 100644
--- a/src/com/android/dialer/util/TelecomUtil.java
+++ b/src/com/android/dialer/util/TelecomUtil.java
@@ -22,11 +22,17 @@
 import android.net.Uri;
 import android.os.Bundle;
 import android.provider.CallLog.Calls;
+import android.support.v4.content.ContextCompat;
 import android.telecom.PhoneAccountHandle;
 import android.telecom.TelecomManager;
+import android.telephony.PhoneNumberUtils;
+import android.telephony.TelephonyManager;
 import android.text.TextUtils;
 import android.util.Log;
 
+import com.android.contacts.common.compat.CompatUtils;
+import com.android.dialer.compat.DialerCompatUtils;
+
 import java.util.ArrayList;
 import java.util.List;
 
@@ -108,7 +114,7 @@
     }
 
     public static List<PhoneAccountHandle> getCallCapablePhoneAccounts(Context context) {
-        if (hasReadPhoneStatePermission(context)) {
+        if (hasReadPhoneStatePermission(context) && CompatUtils.isMSIMCompatible()) {
             return getTelecomManager(context).getCallCapablePhoneAccounts();
         }
         return new ArrayList<>();
@@ -124,14 +130,22 @@
     public static boolean isVoicemailNumber(Context context, PhoneAccountHandle accountHandle,
             String number) {
         if (hasReadPhoneStatePermission(context)) {
-            return getTelecomManager(context).isVoiceMailNumber(accountHandle, number);
+            if (CompatUtils.isMSIMCompatible()) {
+                return getTelecomManager(context).isVoiceMailNumber(accountHandle, number);
+            } else {
+                return PhoneNumberUtils.isVoiceMailNumber(number);
+            }
         }
         return false;
     }
 
     public static String getVoicemailNumber(Context context, PhoneAccountHandle accountHandle) {
         if (hasReadPhoneStatePermission(context)) {
-            return getTelecomManager(context).getVoiceMailNumber(accountHandle);
+            if (CompatUtils.isMSIMCompatible()) {
+                return getTelecomManager(context).getVoiceMailNumber(accountHandle);
+            } else {
+                return getTelephonyManager(context).getVoiceMailNumber();
+            }
         }
         return null;
     }
@@ -181,11 +195,15 @@
     }
 
     private static boolean hasPermission(Context context, String permission) {
-        return context.checkSelfPermission(permission)
+        return ContextCompat.checkSelfPermission(context, permission)
                 == PackageManager.PERMISSION_GRANTED;
     }
 
     public static boolean isDefaultDialer(Context context) {
+        if (!DialerCompatUtils.isDefaultDialerCompatible()) {
+            return false;
+        }
+
         final boolean result = TextUtils.equals(context.getPackageName(),
                 getTelecomManager(context).getDefaultDialerPackage());
         if (result) {
@@ -203,4 +221,8 @@
     private static TelecomManager getTelecomManager(Context context) {
         return (TelecomManager) context.getSystemService(Context.TELECOM_SERVICE);
     }
+
+    private static TelephonyManager getTelephonyManager(Context context) {
+        return (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
+    }
 }
diff --git a/src/com/android/dialer/voicemail/VoicemailAudioManager.java b/src/com/android/dialer/voicemail/VoicemailAudioManager.java
index 267eeca..712b20b 100644
--- a/src/com/android/dialer/voicemail/VoicemailAudioManager.java
+++ b/src/com/android/dialer/voicemail/VoicemailAudioManager.java
@@ -19,10 +19,10 @@
 import android.content.Context;
 import android.media.AudioManager;
 import android.media.AudioManager.OnAudioFocusChangeListener;
-import android.telecom.CallAudioState;
 import android.util.Log;
 
-import java.util.Objects;
+import com.android.dialer.compat.CallAudioStateCompat;
+
 import java.util.concurrent.RejectedExecutionException;
 
 /**
@@ -38,7 +38,7 @@
     private VoicemailPlaybackPresenter mVoicemailPlaybackPresenter;
     private WiredHeadsetManager mWiredHeadsetManager;
     private boolean mWasSpeakerOn;
-    private CallAudioState mCallAudioState;
+    private CallAudioStateCompat mCallAudioState;
 
     public VoicemailAudioManager(Context context,
             VoicemailPlaybackPresenter voicemailPlaybackPresenter) {
@@ -82,25 +82,26 @@
 
         int newRoute = mCallAudioState.getRoute();  // start out with existing route
         if (newIsPluggedIn) {
-            newRoute = CallAudioState.ROUTE_WIRED_HEADSET;
+            newRoute = CallAudioStateCompat.ROUTE_WIRED_HEADSET;
         } else {
             if (mWasSpeakerOn) {
-                newRoute = CallAudioState.ROUTE_SPEAKER;
+                newRoute = CallAudioStateCompat.ROUTE_SPEAKER;
             } else {
-                newRoute = CallAudioState.ROUTE_EARPIECE;
+                newRoute = CallAudioStateCompat.ROUTE_EARPIECE;
             }
         }
 
-        mVoicemailPlaybackPresenter.setSpeakerphoneOn(newRoute == CallAudioState.ROUTE_SPEAKER);
+        mVoicemailPlaybackPresenter.setSpeakerphoneOn(newRoute == CallAudioStateCompat.ROUTE_SPEAKER);
 
         // We need to call this every time even if we do not change the route because the supported
         // routes changed either to include or not include WIRED_HEADSET.
         setSystemAudioState(
-                new CallAudioState(false /* muted */, newRoute, calculateSupportedRoutes()));
+                new CallAudioStateCompat(false /* muted */, newRoute, calculateSupportedRoutes()));
     }
 
     public void setSpeakerphoneOn(boolean on) {
-        setAudioRoute(on ? CallAudioState.ROUTE_SPEAKER : CallAudioState.ROUTE_WIRED_OR_EARPIECE);
+        setAudioRoute(on ? CallAudioStateCompat.ROUTE_SPEAKER
+                : CallAudioStateCompat.ROUTE_WIRED_OR_EARPIECE);
     }
 
     public boolean isWiredHeadsetPluggedIn() {
@@ -119,10 +120,10 @@
     /**
      * Change the audio route, for example from earpiece to speakerphone.
      *
-     * @param route The new audio route to use. See {@link CallAudioState}.
+     * @param route The new audio route to use. See {@link CallAudioStateCompat}.
      */
     void setAudioRoute(int route) {
-        Log.v(TAG, "setAudioRoute, route: " + CallAudioState.audioRouteToString(route));
+        Log.v(TAG, "setAudioRoute, route: " + CallAudioStateCompat.audioRouteToString(route));
 
         // Change ROUTE_WIRED_OR_EARPIECE to a single entry.
         int newRoute = selectWiredOrEarpiece(route, mCallAudioState.getSupportedRouteMask());
@@ -136,25 +137,25 @@
         if (mCallAudioState.getRoute() != newRoute) {
             // Remember the new speaker state so it can be restored when the user plugs and unplugs
             // a headset.
-            mWasSpeakerOn = newRoute == CallAudioState.ROUTE_SPEAKER;
-            setSystemAudioState(new CallAudioState(false /* muted */, newRoute,
+            mWasSpeakerOn = newRoute == CallAudioStateCompat.ROUTE_SPEAKER;
+            setSystemAudioState(new CallAudioStateCompat(false /* muted */, newRoute,
                     mCallAudioState.getSupportedRouteMask()));
         }
     }
 
-    private CallAudioState getInitialAudioState() {
+    private CallAudioStateCompat getInitialAudioState() {
         int supportedRouteMask = calculateSupportedRoutes();
-        int route = selectWiredOrEarpiece(CallAudioState.ROUTE_WIRED_OR_EARPIECE,
+        int route = selectWiredOrEarpiece(CallAudioStateCompat.ROUTE_WIRED_OR_EARPIECE,
                 supportedRouteMask);
-        return new CallAudioState(false /* muted */, route, supportedRouteMask);
+        return new CallAudioStateCompat(false /* muted */, route, supportedRouteMask);
     }
 
     private int calculateSupportedRoutes() {
-        int routeMask = CallAudioState.ROUTE_SPEAKER;
+        int routeMask = CallAudioStateCompat.ROUTE_SPEAKER;
         if (mWiredHeadsetManager.isPluggedIn()) {
-            routeMask |= CallAudioState.ROUTE_WIRED_HEADSET;
+            routeMask |= CallAudioStateCompat.ROUTE_WIRED_HEADSET;
         } else {
-            routeMask |= CallAudioState.ROUTE_EARPIECE;
+            routeMask |= CallAudioStateCompat.ROUTE_EARPIECE;
         }
         return routeMask;
     }
@@ -163,29 +164,29 @@
         // Since they are mutually exclusive and one is ALWAYS valid, we allow a special input of
         // ROUTE_WIRED_OR_EARPIECE so that callers don't have to make a call to check which is
         // supported before calling setAudioRoute.
-        if (route == CallAudioState.ROUTE_WIRED_OR_EARPIECE) {
-            route = CallAudioState.ROUTE_WIRED_OR_EARPIECE & supportedRouteMask;
+        if (route == CallAudioStateCompat.ROUTE_WIRED_OR_EARPIECE) {
+            route = CallAudioStateCompat.ROUTE_WIRED_OR_EARPIECE & supportedRouteMask;
             if (route == 0) {
                 Log.wtf(TAG, "One of wired headset or earpiece should always be valid.");
                 // assume earpiece in this case.
-                route = CallAudioState.ROUTE_EARPIECE;
+                route = CallAudioStateCompat.ROUTE_EARPIECE;
             }
         }
         return route;
     }
 
-    private void setSystemAudioState(CallAudioState callAudioState) {
-        CallAudioState oldAudioState = mCallAudioState;
+    private void setSystemAudioState(CallAudioStateCompat callAudioState) {
+        CallAudioStateCompat oldAudioState = mCallAudioState;
         mCallAudioState = callAudioState;
 
         Log.i(TAG, "setSystemAudioState: changing from " + oldAudioState + " to "
                 + mCallAudioState);
 
         // Audio route.
-        if (mCallAudioState.getRoute() == CallAudioState.ROUTE_SPEAKER) {
+        if (mCallAudioState.getRoute() == CallAudioStateCompat.ROUTE_SPEAKER) {
             turnOnSpeaker(true);
-        } else if (mCallAudioState.getRoute() == CallAudioState.ROUTE_EARPIECE ||
-                mCallAudioState.getRoute() == CallAudioState.ROUTE_WIRED_HEADSET) {
+        } else if (mCallAudioState.getRoute() == CallAudioStateCompat.ROUTE_EARPIECE ||
+                mCallAudioState.getRoute() == CallAudioStateCompat.ROUTE_WIRED_HEADSET) {
             // Just handle turning off the speaker, the system will handle switching between wired
             // headset and earpiece.
             turnOnSpeaker(false);
diff --git a/tests/src/com/android/dialer/calllog/CallLogAdapterTest.java b/tests/src/com/android/dialer/calllog/CallLogAdapterTest.java
index a5a61ad..80dfe35 100644
--- a/tests/src/com/android/dialer/calllog/CallLogAdapterTest.java
+++ b/tests/src/com/android/dialer/calllog/CallLogAdapterTest.java
@@ -64,6 +64,7 @@
     private static final String TEST_NUMBER_1 = "12345678";
     private static final String TEST_NUMBER_2 = "87654321";
     private static final String TEST_NUMBER_3 = "18273645";
+    private static final String TEST_POST_DIAL_DIGITS = ";12345";
     private static final String TEST_FORMATTED_NUMBER = "1 212-555-1000";
 
     // The object under test.
@@ -233,6 +234,18 @@
     }
 
     @MediumTest
+    public void testBindView_CallButtonWithPostDialDigits() {
+        createCallLogEntry(TEST_NUMBER, TEST_POST_DIAL_DIGITS, NO_VALUE_SET, NO_VALUE_SET);
+
+        mAdapter.changeCursor(mCursor);
+        mAdapter.onBindViewHolder(mViewHolder, 0);
+
+        if (PhoneNumberDisplayUtil.canShowPostDial()) {
+            assertHasCallActionToGivenNumber(mViewHolder, TEST_NUMBER + TEST_POST_DIAL_DIGITS);
+        }
+    }
+
+    @MediumTest
     public void testBindView_VoicemailUri() {
         createVoicemailCallLogEntry();
 
@@ -245,6 +258,32 @@
     }
 
     @MediumTest
+    public void testBindView_NumberWithPostDialDigits() {
+        createCallLogEntry(TEST_NUMBER, TEST_POST_DIAL_DIGITS, NO_VALUE_SET, NO_VALUE_SET);
+
+        mAdapter.changeCursor(mCursor);
+        mAdapter.onBindViewHolder(mViewHolder, 0);
+
+        if (PhoneNumberDisplayUtil.canShowPostDial()) {
+            assertNameIs(mViewHolder, TEST_NUMBER + TEST_POST_DIAL_DIGITS);
+        }
+    }
+
+    @MediumTest
+    public void testBindView_ContactWithPostDialDigits() {
+        createCallLogEntry(TEST_NUMBER, TEST_POST_DIAL_DIGITS, NO_VALUE_SET, NO_VALUE_SET);
+        mAdapter.injectContactInfoForTest(TEST_NUMBER + TEST_POST_DIAL_DIGITS, TEST_COUNTRY_ISO,
+                createContactInfo());
+
+        mAdapter.changeCursor(mCursor);
+        mAdapter.onBindViewHolder(mViewHolder, 0);
+
+        if (PhoneNumberDisplayUtil.canShowPostDial()) {
+            assertNameIs(mViewHolder, TEST_CACHED_NAME_PRIMARY);
+        }
+    }
+
+    @MediumTest
     public void testPresentationAfterRebindingViewHolders() {
         final int increment = 10;
         final int size = increment * 4;
@@ -513,12 +552,13 @@
     }
 
     private void createCallLogEntry(String testNumber) {
-        createCallLogEntry(testNumber, NO_VALUE_SET, NO_VALUE_SET);
+        createCallLogEntry(testNumber, EMPTY_STRING, NO_VALUE_SET, NO_VALUE_SET);
     }
 
     private void createPrivateCallLogEntry() {
         createCallLogEntry(
                 EMPTY_STRING,
+                EMPTY_STRING,
                 Calls.PRESENTATION_RESTRICTED,
                 AppCompatConstants.CALLS_INCOMING_TYPE);
     }
@@ -526,16 +566,17 @@
     private void createUnknownCallLogEntry() {
         createCallLogEntry(
                 EMPTY_STRING,
+                EMPTY_STRING,
                 Calls.PRESENTATION_UNKNOWN,
                 AppCompatConstants.CALLS_INCOMING_TYPE);
     }
 
     private void createVoicemailCallLogEntry() {
-        createCallLogEntry(TEST_NUMBER, NO_VALUE_SET, Calls.VOICEMAIL_TYPE);
+        createCallLogEntry(TEST_NUMBER, EMPTY_STRING, NO_VALUE_SET, Calls.VOICEMAIL_TYPE);
     }
 
-    private void createCallLogEntry(String number, int presentation, int type) {
-        Object[] values = getValues(number, presentation, type);
+    private void createCallLogEntry(String number, String postDialDigits, int presentation, int type) {
+        Object[] values = getValues(number, postDialDigits, presentation, type);
         mCursor.addRow(values);
     }
 
@@ -583,7 +624,7 @@
             String cachedNumberLabel,
             String cachedFormattedNumber,
             boolean inject) {
-        Object[] values = getValues(number, NO_VALUE_SET, type);
+        Object[] values = getValues(number, EMPTY_STRING, NO_VALUE_SET, type);
         values[CallLogQuery.CACHED_NAME] = cachedName;
         values[CallLogQuery.CACHED_NUMBER_TYPE] = cachedNumberType;
         values[CallLogQuery.CACHED_NUMBER_LABEL] = cachedNumberLabel;
@@ -600,12 +641,14 @@
 
     /**
      * @param number The phone number.
+     * @param postDialDigits The post dial digits dialed (if any)
      * @param presentation Number representing display rules for "allowed",
      *               "payphone", "restricted", or "unknown".
-     * @param date In millisec since epoch. Use NOW to use the current time.
+     * @param type The type of the call (outgoing/ingoing)
      */
     private Object[] getValues(
             String number,
+            String postDialDigits,
             int presentation,
             int type) {
         Object[] values = CallLogQueryTestUtils.createTestValues();
@@ -618,6 +661,9 @@
         if (!TextUtils.isEmpty(number)) {
             values[CallLogQuery.NUMBER] = number;
         }
+        if (!TextUtils.isEmpty(postDialDigits) && PhoneNumberDisplayUtil.canShowPostDial()) {
+            values[CallLogQuery.POST_DIAL_DIGITS] = postDialDigits;
+        }
         if (presentation != NO_VALUE_SET) {
             values[CallLogQuery.NUMBER_PRESENTATION] = presentation;
         }
@@ -676,14 +722,16 @@
     }
 
     private void assertHasCallAction(CallLogListItemViewHolder viewHolder) {
-        // The primaryActionView tag is set when the ViewHolder is binded. If it is possible
-        // to place a call to the phone number, a call intent will have been created which
-        // starts a phone call to the entry's number.
+        assertHasCallActionToGivenNumber(viewHolder, TEST_NUMBER);
+    }
+
+    private void assertHasCallActionToGivenNumber(CallLogListItemViewHolder viewHolder,
+            String number) {
         IntentProvider intentProvider =
                 (IntentProvider) viewHolder.primaryActionButtonView.getTag();
         Intent intent = intentProvider.getIntent(getContext());
         assertEquals(TestConstants.CALL_INTENT_ACTION, intent.getAction());
-        assertEquals(Uri.parse("tel:" + TEST_NUMBER), intent.getData());
+        assertEquals(Uri.parse("tel:" + Uri.encode(number)), intent.getData());
     }
 
     /** Returns the label associated with a given phone type. */
diff --git a/tests/src/com/android/dialer/calllog/CallLogGroupBuilderTest.java b/tests/src/com/android/dialer/calllog/CallLogGroupBuilderTest.java
index 5d0b6be..04463c2 100644
--- a/tests/src/com/android/dialer/calllog/CallLogGroupBuilderTest.java
+++ b/tests/src/com/android/dialer/calllog/CallLogGroupBuilderTest.java
@@ -35,6 +35,8 @@
     private static final String TEST_NUMBER1 = "14125551234";
     /** A phone number for testing. */
     private static final String TEST_NUMBER2 = "14125555555";
+    /** A post-dial string for testing */
+    private static final String TEST_POST_DIAL_DIGITS = ";12435;0987";
 
     /** The object under test. */
     private CallLogGroupBuilder mBuilder;
@@ -86,6 +88,26 @@
         assertGroupIs(0, 3, mFakeGroupCreator.groups.get(0));
     }
 
+    public void testAddGroups_WithPostDialMatching() {
+        addCallLogEntryWithPostDialDigits(TEST_NUMBER1, TEST_POST_DIAL_DIGITS,
+                AppCompatConstants.CALLS_OUTGOING_TYPE);
+        addCallLogEntryWithPostDialDigits(TEST_NUMBER1, TEST_POST_DIAL_DIGITS,
+                AppCompatConstants.CALLS_OUTGOING_TYPE);
+        addCallLogEntryWithPostDialDigits(TEST_NUMBER1, "",
+                AppCompatConstants.CALLS_OUTGOING_TYPE);
+
+        mBuilder.addGroups(mCursor);
+
+        if (PhoneNumberDisplayUtil.canShowPostDial()) {
+            assertEquals(2, mFakeGroupCreator.groups.size());
+            assertGroupIs(0, 2, mFakeGroupCreator.groups.get(0));
+            assertGroupIs(2, 1, mFakeGroupCreator.groups.get(1));
+        } else {
+            assertEquals(1, mFakeGroupCreator.groups.size());
+            assertGroupIs(0, 3, mFakeGroupCreator.groups.get(0));
+        }
+    }
+
     public void testAddGroups_MatchingIncomingAndOutgoing() {
         addCallLogEntry(TEST_NUMBER1, AppCompatConstants.CALLS_INCOMING_TYPE);
         addCallLogEntry(TEST_NUMBER1, AppCompatConstants.CALLS_OUTGOING_TYPE);
@@ -312,11 +334,19 @@
     }
     /** Adds a call log entry with the given number and type to the cursor. */
     private void addCallLogEntry(String number, int type) {
+        addCallLogEntryWithPostDialDigits(number, "", type);
+    }
+
+    /** Adds a call log entry with the given number, post-dial digits, and type to the cursor. */
+    private void addCallLogEntryWithPostDialDigits(String number, String postDialDigits, int type) {
         mCursor.moveToNext();
         Object[] values = CallLogQueryTestUtils.createTestValues();
         values[CallLogQuery.ID] = mCursor.getPosition();
         values[CallLogQuery.NUMBER] = number;
         values[CallLogQuery.CALL_TYPE] = type;
+        if (PhoneNumberDisplayUtil.canShowPostDial()) {
+            values[CallLogQuery.POST_DIAL_DIGITS] = postDialDigits;
+        }
         mCursor.addRow(values);
     }
 
diff --git a/tests/src/com/android/dialer/calllog/CallLogListItemHelperTest.java b/tests/src/com/android/dialer/calllog/CallLogListItemHelperTest.java
index c9d8264..a97fce3 100644
--- a/tests/src/com/android/dialer/calllog/CallLogListItemHelperTest.java
+++ b/tests/src/com/android/dialer/calllog/CallLogListItemHelperTest.java
@@ -246,26 +246,34 @@
     /** Sets the details of a phone call using the specified phone number. */
     private void setPhoneCallDetailsWithNumber(String number,
             int presentation, String formattedNumber) {
-        setPhoneCallDetailsWithNumberAndType(number, presentation,
+        setPhoneCallDetailsWithNumberTypeAndPostDialDigits(number, "", presentation,
                 formattedNumber, Calls.INCOMING_TYPE);
     }
 
     /** Sets the details of a phone call using the specified phone number. */
     private void setPhoneCallDetailsWithNumberAndType(String number,
             int presentation, String formattedNumber, int callType) {
+        setPhoneCallDetailsWithNumberTypeAndPostDialDigits(number, "", presentation,
+                formattedNumber, callType);
+    }
+
+    /** Sets the details of a phone call using the specified phone number and post-dial digits. */
+    private void setPhoneCallDetailsWithNumberTypeAndPostDialDigits(String number,
+            String postDialDigits, int presentation, String formattedNumber, int callType) {
         PhoneCallDetails details = getPhoneCallDetails(
-                number, presentation, formattedNumber);
+                number, postDialDigits, presentation, formattedNumber);
         details.callTypes = new int[] {callType};
         mHelper.setPhoneCallDetails(mViewHolder, details);
     }
 
     private PhoneCallDetails getPhoneCallDetails(
-            String number, int presentation, String formattedNumber) {
+            String number, String postDialDigits, int presentation, String formattedNumber) {
         PhoneCallDetails details = new PhoneCallDetails(
                 mContext,
                 number,
                 presentation,
                 formattedNumber,
+                postDialDigits,
                 false /* isVoicemail */);
         setDefaultDetails(details);
         return details;
@@ -278,6 +286,7 @@
                 TEST_NUMBER,
                 Calls.PRESENTATION_ALLOWED,
                 TEST_FORMATTED_NUMBER,
+                "",
                 false /* isVoicemail */);
         setDefaultDetails(details);
         details.callTypes = types;
diff --git a/tests/src/com/android/dialer/calllog/CallLogQueryTestUtils.java b/tests/src/com/android/dialer/calllog/CallLogQueryTestUtils.java
index 5b46293..1e4a000 100644
--- a/tests/src/com/android/dialer/calllog/CallLogQueryTestUtils.java
+++ b/tests/src/com/android/dialer/calllog/CallLogQueryTestUtils.java
@@ -20,17 +20,24 @@
 
 import android.provider.CallLog.Calls;
 
-import junit.framework.Assert;
-
 /**
  * Helper class to create test values for {@link CallLogQuery}.
  */
 public class CallLogQueryTestUtils {
     public static Object[] createTestValues() {
-        Object[] values = new Object[]{
-                0L, "", 0L, 0L, Calls.INCOMING_TYPE, "", "", "", null, 0, null, null, null, null,
-                0L, null, 0, Calls.PRESENTATION_ALLOWED, null, null, 0, null, null, null
-        };
+        Object[] values;
+        if (PhoneNumberDisplayUtil.canShowPostDial()) {
+            values = new Object[]{
+                    0L, "", 0L, 0L, Calls.INCOMING_TYPE, "", "", "", null, 0, null, null, null,
+                    null, 0L, null, 0, Calls.PRESENTATION_ALLOWED, null, null, 0, null, null,
+                    null, ""
+            };
+        } else {
+            values = new Object[]{
+                    0L, "", 0L, 0L, Calls.INCOMING_TYPE, "", "", "", null, 0, null, null, null,
+                    null, 0L, null, 0, Calls.PRESENTATION_ALLOWED, null, null, 0, null, null, null
+            };
+        }
         assertEquals(CallLogQuery._PROJECTION.length, values.length);
         return values;
     }
diff --git a/tests/src/com/android/dialer/calllog/PhoneCallDetailsHelperTest.java b/tests/src/com/android/dialer/calllog/PhoneCallDetailsHelperTest.java
index c30861c..23ee7b3 100644
--- a/tests/src/com/android/dialer/calllog/PhoneCallDetailsHelperTest.java
+++ b/tests/src/com/android/dialer/calllog/PhoneCallDetailsHelperTest.java
@@ -58,6 +58,8 @@
     private static final String TEST_GEOCODE = "United States";
     /** Empty geocode label */
     private static final String EMPTY_GEOCODE = "";
+    /** Empty post-dial digits label */
+    private static final String EMPTY_POSTDIAL = "";
 
     /** The object under test. */
     private PhoneCallDetailsHelper mHelper;
@@ -428,6 +430,7 @@
                 TEST_NUMBER,
                 Calls.PRESENTATION_ALLOWED,
                 TEST_FORMATTED_NUMBER,
+                EMPTY_POSTDIAL,
                 false /* isVoicemail */);
         setDefaultDetails(details);
         return details;
@@ -440,6 +443,7 @@
                 number,
                 presentation,
                 formattedNumber,
+                EMPTY_POSTDIAL,
                 isVoicemail(number));
         setDefaultDetails(details);
         return details;
diff --git a/tests/src/com/android/dialer/calllog/TestTelecomCallLogCache.java b/tests/src/com/android/dialer/calllog/TestTelecomCallLogCache.java
index 5475ec3..fcf9884 100644
--- a/tests/src/com/android/dialer/calllog/TestTelecomCallLogCache.java
+++ b/tests/src/com/android/dialer/calllog/TestTelecomCallLogCache.java
@@ -17,13 +17,20 @@
 package com.android.dialer.calllog;
 
 import android.content.Context;
+import android.telecom.PhoneAccount;
 import android.telecom.PhoneAccountHandle;
 
+import com.android.dialer.calllog.calllogcache.CallLogCache;
+
 /**
- * Modified version of {@link com.android.dialer.calllog.PhoneNumberDisplayHelper} to be used in
+ * Modified version of {@link com.android.dialer.calllog.calllogcache.CallLogCache} to be used in
  * tests that allows injecting the voicemail number.
+ *
+ * NOTE: This tests the pre-LMR1 version because currently none of the tests involve multi-SIM,
+ * but...
+ * TODO: write tests to test multi-SIM functionality in TelecomCallLogCache.
  */
-public final class TestTelecomCallLogCache extends TelecomCallLogCache {
+public final class TestTelecomCallLogCache extends CallLogCache {
     private CharSequence mVoicemailNumber;
 
     public TestTelecomCallLogCache(Context context, CharSequence voicemailNumber) {
@@ -35,4 +42,19 @@
     public boolean isVoicemailNumber(PhoneAccountHandle accountHandle, CharSequence number) {
         return mVoicemailNumber.equals(number);
     }
+
+    @Override
+    public String getAccountLabel(PhoneAccountHandle accountHandle) {
+        return null;
+    }
+
+    @Override
+    public int getAccountColor(PhoneAccountHandle accountHandle) {
+        return PhoneAccount.NO_HIGHLIGHT_COLOR;
+    }
+
+    @Override
+    public boolean doesAccountSupportCallSubject(PhoneAccountHandle accountHandle) {
+        return false;
+    }
 }
diff --git a/tests/src/com/android/dialer/filterednumber/FilteredNumbersUtilTest.java b/tests/src/com/android/dialer/filterednumber/FilteredNumbersUtilTest.java
index 180295c..ccd95ab 100644
--- a/tests/src/com/android/dialer/filterednumber/FilteredNumbersUtilTest.java
+++ b/tests/src/com/android/dialer/filterednumber/FilteredNumbersUtilTest.java
@@ -15,6 +15,7 @@
  */
 package com.android.dialer.filterednumber;
 
+import android.preference.PreferenceManager;
 import android.test.AndroidTestCase;
 
 import com.android.contacts.common.test.mocks.ContactsMockContext;
@@ -46,6 +47,12 @@
     public void setUp() throws Exception {
         super.setUp();
         mContext = new ContactsMockContext(getContext(), FilteredNumberContract.AUTHORITY);
+
+        // Reset whether an emergency number was dialed
+        PreferenceManager.getDefaultSharedPreferences(mContext)
+                .edit()
+                .putLong(FilteredNumbersUtil.LAST_EMERGENCY_CALL_MS_PREF_KEY, 0)
+                .apply();
     }
 
     public void testShouldBlockVoicemail_NotBlocked() {
@@ -78,6 +85,17 @@
                 COUNTRY_ISO, EARLIER_TIME + 30000));
     }
 
+    public void testShouldBlockVoicemail_AfterEmergencyCall() {
+        // Just called emergency services
+        PreferenceManager.getDefaultSharedPreferences(mContext)
+                .edit()
+                .putLong(FilteredNumbersUtil.LAST_EMERGENCY_CALL_MS_PREF_KEY,
+                        System.currentTimeMillis())
+                .apply();
+        assertFalse(FilteredNumbersUtil.shouldBlockVoicemail(mContext, NORMALIZED_NUMBER,
+                COUNTRY_ISO, 0));
+    }
+
     private void setupShouldBlockVoicemailQuery(long creationTimeMs) {
         Query query = mContext.getContactsProvider().expectQuery(FilteredNumber.CONTENT_URI)
                 .withProjection(FILTERED_NUMBER_PROJECTION)