1. Continous ringing after receiving a call waiting while in a call, and before user answers the call waiting, the 1st call drops. If another MT call comes in, while it rings, it also drops, the phone will keep ringing. 2. Data call is not re-initiated if emergency MO call collides with an MT call. Bug: 2123287 Change-Id: I6b12a900ec60b478691544ab5326eac4952ce834