am 13f6270e: SipAudioCall: use SipErrorCode instead of string in onError()

Merge commit '13f6270eb14b409709c936b828e2a2fd40e427c4' into gingerbread-plus-aosp

* commit '13f6270eb14b409709c936b828e2a2fd40e427c4':
  SipAudioCall: use SipErrorCode instead of string in onError()
tree: 1664382aa17eb82db6f397d535fff7bd57ac2055
  1. cmds/
  2. include/
  3. libs/
  4. opengl/
  5. services/
  6. vpn/
  7. MODULE_LICENSE_APACHE2
  8. NOTICE