am 1a2649f0: Merge "Add voip(SIP related codes) into framework." into gingerbread

Merge commit '1a2649f0da35218748db5aa02c9969246a714b8f' into gingerbread-plus-aosp

* commit '1a2649f0da35218748db5aa02c9969246a714b8f':
  Add voip(SIP related codes) into framework.