c6548fd9ed
Let SipSession return it when UnknownHostException is caught. Add DisconnectCause.SERVER_UNREACHABLE in Connection and have SipPhone report it when receiving SERVER_UNREACHABLE from SipSession. http://b/issue?id=3061691 Change-Id: I944328ba3ee30c0a9386e89b5c4696d4d9bde000