Some SBCs will wait for RTP to be sent from an endpoint so it can identify the source IP and port to use for the return RTP.
> -----Original Message----- > From: VoiceOps [mailto:[email protected]] On Behalf Of Eric > Wieling > Sent: Friday, June 13, 2014 11:31 AM > To: Brian Taylor; [email protected] > Subject: Re: [VoiceOps] Call established before audio path > > In my experience allow reinvites / directmedia, etc will cause a short delay > in > setting up audio. > > -----Original Message----- > From: VoiceOps [mailto:[email protected]] On Behalf Of Brian > Taylor > Sent: Friday, June 13, 2014 12:07 PM > To: [email protected] > Subject: [VoiceOps] Call established before audio path > > We have customers who are reporting that when people call into them that the > beginning of the greeting is not being heard. > It appears that the phones think the call is ready before there is a complete > audio path. We see this the most on calls that come in from the PSTN. Long > distance or toll free calls are the worst. > We have a Broadworks system that uses Lucent 5010 (Telica) switches for the > connections to the PSTN. > The symptom seems to be very similar for all of our PSTN connections, to > multiple carriers. > > I'm just curious if anyone has any experience with this problem, or if anyone > has any suggestions to get to the bottom of the issue. > > Any assistance or inspiration would be greatly appreciated. > > Thank you, > Brian Taylor > Socket Telecom, LLC > [email protected] > _______________________________________________ > VoiceOps mailing list > [email protected] > https://puck.nether.net/mailman/listinfo/voiceops > > _______________________________________________ > VoiceOps mailing list > [email protected] > https://puck.nether.net/mailman/listinfo/voiceops _______________________________________________ VoiceOps mailing list [email protected] https://puck.nether.net/mailman/listinfo/voiceops
