diff --git a/InCallUI/res/layout/call_button_fragment.xml b/InCallUI/res/layout/call_button_fragment.xml
index 6dbfbf7..802e3de 100644
--- a/InCallUI/res/layout/call_button_fragment.xml
+++ b/InCallUI/res/layout/call_button_fragment.xml
@@ -126,7 +126,7 @@
         <ToggleButton android:id="@+id/pauseVideoButton"
             style="@style/InCallCompoundButton"
             android:background="@drawable/btn_compound_video_off"
-            android:contentDescription="@string/onscreenPauseVideoText"
+            android:contentDescription="@string/onscreenTurnOffCameraText"
             android:visibility="gone" />
 
         <!-- "Change to audio call" for video calls. -->
diff --git a/InCallUI/res/values/strings.xml b/InCallUI/res/values/strings.xml
index 57a1b53..7701cdb 100644
--- a/InCallUI/res/values/strings.xml
+++ b/InCallUI/res/values/strings.xml
@@ -313,8 +313,10 @@
     <!-- Text for the onscreen "Switch camera" button. When clicked, this switches the user's camera
          for video calling between the front-facing camera and the back-facing camera. -->
     <string name="onscreenSwitchCameraText">Switch camera</string>
-    <!-- Text for the onscreen "Pause video" button. -->
-    <string name="onscreenPauseVideoText">Pause video</string>
+    <!-- Text for the onscreen "turn on camera" button. -->
+    <string name="onscreenTurnOnCameraText">Turn on camera</string>
+    <!-- Text for the onscreen "turn off camera" button. -->
+    <string name="onscreenTurnOffCameraText">Turn off camera</string>
     <!-- Text for the onscreen overflow button, to see additional actions which can be done. -->
     <string name="onscreenOverflowText">More options</string>
 
diff --git a/InCallUI/src/com/android/incallui/CallButtonFragment.java b/InCallUI/src/com/android/incallui/CallButtonFragment.java
index 5a25b6a..6b633ea 100644
--- a/InCallUI/src/com/android/incallui/CallButtonFragment.java
+++ b/InCallUI/src/com/android/incallui/CallButtonFragment.java
@@ -65,7 +65,6 @@
         implements CallButtonPresenter.CallButtonUi, OnMenuItemClickListener, OnDismissListener,
         View.OnClickListener {
 
-    private static final int INVALID_INDEX = -1;
     private int mButtonMaxVisible;
     // The button is currently visible in the UI
     private static final int BUTTON_VISIBLE = 1;
@@ -182,7 +181,7 @@
         super.onActivityCreated(savedInstanceState);
 
         // set the buttons
-        updateAudioButtons(getPresenter().getSupportedAudio());
+        updateAudioButtons();
     }
 
     @Override
@@ -425,8 +424,14 @@
     }
 
     @Override
-    public void setVideoPaused(boolean isPaused) {
-        mPauseVideoButton.setSelected(isPaused);
+    public void setVideoPaused(boolean isVideoPaused) {
+        mPauseVideoButton.setSelected(isVideoPaused);
+
+        if (isVideoPaused) {
+            mPauseVideoButton.setContentDescription(getText(R.string.onscreenTurnOnCameraText));
+        } else {
+            mPauseVideoButton.setContentDescription(getText(R.string.onscreenTurnOffCameraText));
+        }
     }
 
     @Override
@@ -505,7 +510,7 @@
 
     @Override
     public void setAudio(int mode) {
-        updateAudioButtons(getPresenter().getSupportedAudio());
+        updateAudioButtons();
         refreshAudioModePopup();
 
         if (mPrevAudioMode != mode) {
@@ -516,7 +521,7 @@
 
     @Override
     public void setSupportedAudio(int modeMask) {
-        updateAudioButtons(modeMask);
+        updateAudioButtons();
         refreshAudioModePopup();
     }
 
@@ -555,7 +560,7 @@
     public void onDismiss(PopupMenu menu) {
         Log.d(this, "- onDismiss: " + menu);
         mAudioModePopupVisible = false;
-        updateAudioButtons(getPresenter().getSupportedAudio());
+        updateAudioButtons();
     }
 
     /**
@@ -600,7 +605,7 @@
      * Updates the audio button so that the appriopriate visual layers
      * are visible based on the supported audio formats.
      */
-    private void updateAudioButtons(int supportedModes) {
+    private void updateAudioButtons() {
         final boolean bluetoothSupported = isSupported(CallAudioState.ROUTE_BLUETOOTH);
         final boolean speakerSupported = isSupported(CallAudioState.ROUTE_SPEAKER);
 
diff --git a/InCallUI/src/com/android/incallui/CallButtonPresenter.java b/InCallUI/src/com/android/incallui/CallButtonPresenter.java
index e8c2d4b..df1cd66 100644
--- a/InCallUI/src/com/android/incallui/CallButtonPresenter.java
+++ b/InCallUI/src/com/android/incallui/CallButtonPresenter.java
@@ -366,7 +366,6 @@
     private void updateButtonsState(Call call) {
         Log.v(this, "updateButtonsState");
         final CallButtonUi ui = getUi();
-
         final boolean isVideo = VideoUtils.isVideoCall(call);
 
         // Common functionality (audio, hold, etc).
@@ -398,6 +397,9 @@
         ui.showButton(BUTTON_DOWNGRADE_TO_AUDIO, showDowngradeToAudio);
         ui.showButton(BUTTON_SWITCH_CAMERA, isVideo);
         ui.showButton(BUTTON_PAUSE_VIDEO, isVideo);
+        if (isVideo) {
+            getUi().setVideoPaused(!VideoUtils.isTransmissionEnabled(call));
+        }
         ui.showButton(BUTTON_DIALPAD, true);
         ui.showButton(BUTTON_MERGE, showMerge);
 
diff --git a/InCallUI/src/com/android/incallui/CallerInfoAsyncQuery.java b/InCallUI/src/com/android/incallui/CallerInfoAsyncQuery.java
index 2839fbb..f7f0cbb 100644
--- a/InCallUI/src/com/android/incallui/CallerInfoAsyncQuery.java
+++ b/InCallUI/src/com/android/incallui/CallerInfoAsyncQuery.java
@@ -473,7 +473,7 @@
             int idIndex = cursor.getColumnIndex(Directory._ID);
             while (cursor.moveToNext()) {
                 long id = cursor.getLong(idIndex);
-                if (DirectoryCompat.isRemoteDirectory(id)) {
+                if (DirectoryCompat.isRemoteDirectoryId(id)) {
                     results.add(id);
                 }
             }
diff --git a/InCallUI/src/com/android/incallui/StatusBarNotifier.java b/InCallUI/src/com/android/incallui/StatusBarNotifier.java
index 7d212aa..a616203 100644
--- a/InCallUI/src/com/android/incallui/StatusBarNotifier.java
+++ b/InCallUI/src/com/android/incallui/StatusBarNotifier.java
@@ -247,8 +247,11 @@
                 getContentString(call, contactInfo.userType);
         final String contentTitle = getContentTitle(contactInfo, call);
 
+        final boolean isVideoUpgradeRequest = call.getSessionModificationState()
+                == Call.SessionModificationState.RECEIVED_UPGRADE_TO_VIDEO_REQUEST;
         final int notificationType;
-        if (callState == Call.State.INCOMING || callState == Call.State.CALL_WAITING) {
+        if (callState == Call.State.INCOMING || callState == Call.State.CALL_WAITING
+                || isVideoUpgradeRequest) {
             notificationType = NOTIFICATION_INCOMING_CALL;
         } else {
             notificationType = NOTIFICATION_IN_CALL;
@@ -301,8 +304,6 @@
         builder.setLargeIcon(largeIcon);
         builder.setColor(mContext.getResources().getColor(R.color.dialer_theme_color));
 
-        final boolean isVideoUpgradeRequest = call.getSessionModificationState()
-                == Call.SessionModificationState.RECEIVED_UPGRADE_TO_VIDEO_REQUEST;
         if (isVideoUpgradeRequest) {
             builder.setUsesChronometer(false);
             addDismissUpgradeRequestAction(builder);
diff --git a/InCallUI/src/com/android/incallui/VideoCallFragment.java b/InCallUI/src/com/android/incallui/VideoCallFragment.java
index cb8c644..2e65f81 100644
--- a/InCallUI/src/com/android/incallui/VideoCallFragment.java
+++ b/InCallUI/src/com/android/incallui/VideoCallFragment.java
@@ -499,6 +499,7 @@
     public void onPause() {
         super.onPause();
         Log.d(this, "onPause:");
+        getPresenter().cancelAutoFullScreen();
     }
 
     @Override
@@ -549,6 +550,7 @@
      * Hides and shows the incoming video view and changes the outgoing video view's state based on
      * whether outgoing view is enabled or not.
      */
+    @Override
     public void showVideoViews(boolean previewPaused, boolean showIncoming) {
         inflateVideoUi(true);
 
@@ -567,6 +569,7 @@
     /**
      * Hide all video views.
      */
+    @Override
     public void hideVideoUi() {
         inflateVideoUi(false);
     }
diff --git a/InCallUI/src/com/android/incallui/VideoCallPresenter.java b/InCallUI/src/com/android/incallui/VideoCallPresenter.java
index 9a33d80..7617608 100644
--- a/InCallUI/src/com/android/incallui/VideoCallPresenter.java
+++ b/InCallUI/src/com/android/incallui/VideoCallPresenter.java
@@ -81,7 +81,9 @@
     private Runnable mAutoFullscreenRunnable =  new Runnable() {
         @Override
         public void run() {
-            if (mAutoFullScreenPending && !InCallPresenter.getInstance().isDialpadVisible()) {
+            if (mAutoFullScreenPending && !InCallPresenter.getInstance().isDialpadVisible()
+                    && mIsVideoMode) {
+
                 Log.v(this, "Automatically entering fullscreen mode.");
                 InCallPresenter.getInstance().setFullScreen(true);
                 mAutoFullScreenPending = false;
@@ -258,6 +260,8 @@
             return;
         }
 
+        cancelAutoFullScreen();
+
         InCallPresenter.getInstance().removeListener(this);
         InCallPresenter.getInstance().removeDetailsListener(this);
         InCallPresenter.getInstance().removeIncomingCallListener(this);
@@ -495,7 +499,7 @@
         updateCameraSelection(call);
 
         if (isVideoCall) {
-            enterVideoMode(call);
+            adjustVideoMode(call);
         } else if (isVideoMode()) {
             exitVideoMode();
         }
@@ -555,7 +559,7 @@
             Log.d(this, "onPrimaryCallChanged: Entering video mode...");
 
             updateCameraSelection(newPrimaryCall);
-            enterVideoMode(newPrimaryCall);
+            adjustVideoMode(newPrimaryCall);
         }
     }
 
@@ -630,7 +634,7 @@
      * Handles a change to the video call. Sets the surfaces on the previous call to null and sets
      * the surfaces on the new video call accordingly.
      *
-     * @param videoCall The new video call.
+     * @param call The new video call.
      */
     private void changeVideoCall(Call call) {
         final VideoCall videoCall = call.getTelecomCall().getVideoCall();
@@ -651,13 +655,13 @@
         }
 
         if (VideoUtils.isVideoCall(call) && hasChanged) {
-            enterVideoMode(call);
+            adjustVideoMode(call);
         }
     }
 
     private static boolean isCameraRequired(int videoState) {
-        return VideoProfile.isBidirectional(videoState) ||
-                VideoProfile.isTransmissionEnabled(videoState);
+        return VideoProfile.isBidirectional(videoState)
+                || VideoProfile.isTransmissionEnabled(videoState);
     }
 
     private boolean isCameraRequired() {
@@ -665,14 +669,16 @@
     }
 
     /**
-     * Enters video mode by showing the video surfaces and making other adjustments (eg. audio).
+     * Adjusts the current video mode by setting up the preview and display surfaces as necessary.
+     * Expected to be called whenever the video state associated with a call changes (e.g. a user
+     * turns their camera on or off) to ensure the correct surfaces are shown/hidden.
      * TODO(vt): Need to adjust size and orientation of preview surface here.
      */
-    private void enterVideoMode(Call call) {
+    private void adjustVideoMode(Call call) {
         VideoCall videoCall = call.getVideoCall();
         int newVideoState = call.getVideoState();
 
-        Log.d(this, "enterVideoMode videoCall= " + videoCall + " videoState: " + newVideoState);
+        Log.d(this, "adjustVideoMode videoCall= " + videoCall + " videoState: " + newVideoState);
         VideoCallUi ui = getUi();
         if (ui == null) {
             Log.e(this, "Error VideoCallUi is null so returning");
@@ -692,16 +698,15 @@
             videoCall.setDeviceOrientation(mDeviceOrientation);
             enableCamera(videoCall, isCameraRequired(newVideoState));
         }
+        int previousVideoState = mCurrentVideoState;
         mCurrentVideoState = newVideoState;
-
         mIsVideoMode = true;
 
-        maybeAutoEnterFullscreen(call);
-    }
-
-    private static boolean isSpeakerEnabledForVideoCalls() {
-        // TODO: Make this a carrier configurable setting. For now this is always true. b/20090407
-        return true;
+        // adjustVideoMode may be called if we are already in a 1-way video state.  In this case
+        // we do not want to trigger auto-fullscreen mode.
+        if (!VideoUtils.isVideoCall(previousVideoState) && VideoUtils.isVideoCall(newVideoState)) {
+            maybeAutoEnterFullscreen(call);
+        }
     }
 
     private void enableCamera(VideoCall videoCall, boolean isCameraRequired) {
@@ -1068,6 +1073,8 @@
      * 2. Call is not active
      * 3. Call is not video call
      * 4. Already in fullscreen mode
+     * 5. The current video state is not bi-directional (if the remote party stops transmitting,
+     *    the user's contact photo would dominate in fullscreen mode).
      *
      * @param call The current call.
      */
@@ -1079,7 +1086,8 @@
         if (call == null || (
                 call != null && (call.getState() != Call.State.ACTIVE ||
                         !VideoUtils.isVideoCall(call)) ||
-                        InCallPresenter.getInstance().isFullscreen())) {
+                        InCallPresenter.getInstance().isFullscreen()) ||
+                        !VideoUtils.isBidirectionalVideoCall(call)) {
             // Ensure any previously scheduled attempt to enter fullscreen is cancelled.
             cancelAutoFullScreen();
             return;
@@ -1106,10 +1114,6 @@
         mAutoFullScreenPending = false;
     }
 
-    private static boolean isAudioRouteEnabled(int audioRoute, int audioRouteMask) {
-        return ((audioRoute & audioRouteMask) != 0);
-    }
-
     private static void updateCameraSelection(Call call) {
         Log.d(TAG, "updateCameraSelection: call=" + call);
         Log.d(TAG, "updateCameraSelection: call=" + toSimpleString(call));
diff --git a/InCallUI/src/com/android/incallui/VideoUtils.java b/InCallUI/src/com/android/incallui/VideoUtils.java
index 8641d60..a2eb8bc 100644
--- a/InCallUI/src/com/android/incallui/VideoUtils.java
+++ b/InCallUI/src/com/android/incallui/VideoUtils.java
@@ -45,6 +45,14 @@
         return VideoProfile.isBidirectional(call.getVideoState());
     }
 
+    public static boolean isTransmissionEnabled(Call call) {
+        if (!CompatUtils.isVideoCompatible()) {
+            return false;
+        }
+
+        return VideoProfile.isTransmissionEnabled(call.getVideoState());
+    }
+
     public static boolean isIncomingVideoCall(Call call) {
         if (!VideoUtils.isVideoCall(call)) {
             return false;