Catch SIP exceptions which can crash Phone process on answer. am: e3b4afc616 am: cc4e07669a am: 769ae5b56f am: 71a4d7e815 am: 8cd23c6653 am: f77658a010  -s ours am: 89001774e2
am: cb685aa75b

Change-Id: Id312e8b9001494bfedf115f2beee7c0d2a35c8fd