am 17d21485: Merge changes from topic \'merge-dr1-063015\' into mnc-dr-dev

* commit '17d21485ecea59eeea9dfb49985ad38d7c59e960':
  Display Supplementary Service Notification
  IMS: Add support for MO ims phantom call.
  SRVCC Conference call scenarios with mid-call enabled.
  Set extras
  Rename VoLTE/WFC enable API to available - add VT available API.