Chung-yih Wang 9779b714f4 Revert the ANSWERING state.
+fix the unknown call flash for answering an incoming call and
updating the screen if the background call got dropped.
+change the getFirstActiveBgCall to return the call if the state
is not IDLE. This will help to fix unknown flash if the background
call got dropped.

Change-Id: I9803ccebd919acbd5296e7dfde7dc5f29cc9f180
2010-09-21 11:51:51 +08:00
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