jonas kellens wrote: > I have posted a similar problem earlier on this mailing list with my > Asterisk-system + TDM410 + Grandstream telephones. > But there has not yet been a response to this. > > My client is also experiencing a 'simplex' conversation. There seems > that audio can only flow 1 one way at the same time. > > What I have tried is change the codec on the internal SIP-network from > alaw to gsm (so more compression, less bandwidth needed) but problem > not yet resolved. > > Also I don't know where to begin to look for the problem... > So, I'm curious for the solution.
I have seen this happen with the aggressive echo cancel algorithms. You might want to look into that. Andres http://www.neuroredes.com > > Greetingz, > Jonas. > > On Sat, 2009-05-30 at 14:35 -0400, Nathanial A. Byrnes wrote: > >>Hello, >> I am working on a trixbox based system with a TDM410P connected to 3 >>phone lines from the CO. The asterisk box is on a full duplex 100Mb LAN >>with some polycom and Aastra SIP phones. In general everything works. >>the problem I am trying to solve is that if both parties to a call speak >>at the same time one of the voices gets cut out such that the talker A >>cannot hear what talker B is saying. When talker A stops talking, he/she >>can then hear what talker B says. This issue occurs across all the >>different phones we have set up. I have played with the OSLEC settings >>in the thoughts that the echo cancellation was being a bit ambitious, to >>no avail. Any recommendations on how to best troubleshoot / correct this >>issue? >> >> Thanks and Regards, >> Nate >> >> >------------------------------------------------------------------------ > >_______________________________________________ >-- 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 > _______________________________________________ -- 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
