Catch SIP exceptions which can crash Phone process on answer. am: 232a03b341  -s ours am: 5b52037b55 am: d6f335dff5 am: a0ba18f893 am: 216f7000ef am: 9cab826be9
am: 9b220dbac9

Change-Id: I2072e309bb03877c205e32e7333a65d41228db55