Whenever I have had this problem it was certainly a SIP/Firewall issue. Calls will go through but audio (RTP) will not go through.
Second, using iconnect I have to add an option r (I think) to my dial command in extensions.conf to make asterisk send ring back to the originating phone, because I think something gets messed up between asterisk and iconnect's sip messages. I realise none of this directly answers your question, but I hope I have given you enough source material that you can start looking in the right direction. ----- Original Message ----- From: "Lal, Deepak (Contractor)" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, November 07, 2003 3:25 PM Subject: [Asterisk-Users] No communication channel > I have following setup: > > AnalogPhone_1--TDM400P--Asterisk---SIP---[Softswitch]----POTS-AnalogPhone_2 > > I can call from AnalogPhone_1 to AnalogPhone_2 and all is fine. > > When I call to AnalogPhone_1 from AnalogPhone_2, AnalogPhone_1 rings BUT > I hear no ringing tone AND when someone picks up AnalogPhone_1, there is no > "sound" and parties on both end cannot hear each other. Seems that no > communication channel is open! > > Any suggestions? Thanks - DL > _______________________________________________ > Asterisk-Users mailing list > [EMAIL PROTECTED] > http://lists.digium.com/mailman/listinfo/asterisk-users > _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users