Update to this issue...
Under VoIP Settings I changed the SIP T1 Timer from 500ms to 1000ms - This seems to give me double the time (2 mins) before the call is disconnected. I'd like to have this be just a little longer, as the greeting is over a minute long itself. 1000ms on T1 Timer is the max - Is there another area that I can add some more time to whatever it's adding time to? heh
Jason, please reply with your configuration and the output of the following 3 debugs running together:
debug sip stack message
debug voice verbose
debug int fxo