am 88b4bd5f: am fc7e7766: Merge "CallManager/SipPhone: fix reject a ringing call" into gingerbread

Merge commit '88b4bd5f3e8d6e68541eec4a603b1df83291cf1f'

* commit '88b4bd5f3e8d6e68541eec4a603b1df83291cf1f':
  CallManager/SipPhone: fix reject a ringing call