am b6432ca4: am 960b31e3: Merge "SipService: unset session listener if...
am b6432ca4: am 960b31e3: Merge "SipService: unset session listener if listener is gone." into gingerbread
Merge commit 'b6432ca4'
* commit 'b6432ca4':
SipService: unset session listener if listener is gone.