am d4d3f36f: am 1257d330: Merge "Clean up pending sessions on incoming call in SipService" into gingerbread

Merge commit 'd4d3f36f4c25b41f4253eadd5e67035fe220cad3'

* commit 'd4d3f36f4c25b41f4253eadd5e67035fe220cad3':
  Clean up pending sessions on incoming call in SipService