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 am: 568c17339b am: 9dc31b5831
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Change-Id: I27151e1f5cbf35db28ae7e9a8c1a1c5154c86af0