Hung-ying Tyan 0a6e717fb6 Handle dialing a SIP call to self.
Reply BUSY HERE response so server may redirect the call to the voice mailbox.

http://b/issue?id=3103072
http://b/issue?id=3109479

Change-Id: I81f5dd59ad87298dd9dda87084538ee460eabba8
2010-10-19 14:00:11 -07:00
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2010-10-19 14:00:11 -07:00