Fix bug where sip_audio_session accepts "y" or "n" when making an outgoing session

darcs-hash:20081205115945-58103-12aa617e03435759f6c15d48e73534dea28274ec
Added more verbose disconnection statements to sip_audio_sesion.py

darcs-hash:20081205120008-58103-8031bf180456f998983f1b3e4f02a74753b5a612