Want to make sure I understand why a caller might not hear "ringing" when outbound calling.
A SIP phone is behind a firewall and is registered to an asterisk server on a public network. Sometimes (but not always) when placing an outbound call there is no ringing before the remote party answers. Its not that the remote party picks up very quickly - the delay may be as long as twenty seconds before it is answered (and I must assume that the remote phone had rung at least a few times). I vaguely understand that part of the SIP call setup includes a "ringing" message, sent from asterisk to the originating phone. If this is correct and the firewall for whatever reason isn't passing this message, will there be no ringing sound on the originating phone? This is confusing to me, as I kind of assumed that the ringing sound was in audio, and would be part of the RTP stream. But perhaps that isn't even flowing yet. Guess I am showing my SIP ignorance. Please enlighten ;) Cheers, j _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
