On Fri, 2004-01-02 at 11:35, Nicolas Gudino wrote: > I have a similar problem, with GS phones, X-Lite or Kphone. I tried all > the codecs with the same result. Choppy sound in the direction SIP-Phone > -> pstn, but crystal clear sound the other way around. The only > difference in my case is that I have two asterisks servers connected > together via IAX2, the PSTN call is received in one asterisk, while the > sip phones are in the other asterisk. Ex: > > pstn -> * --iax2--> * ->sip phone (GS, Xlite or Kphone) > > If I use an Xlite in the same asterisk as the pstn line, the sound is > perfect in both ways. But when I answer the call in the second asterisk, > the sound from the sip phone to pstn is choppy, with or without silence > detection, and the sound from pstn to sip phone is perfect. > > The asterisk server with the pstn line is an old pentium 133, maybe > thats the problem, I will try with a better machine and see how it goes.
What is the ping times between your 2 asterisk servers? In the archive I have documented before that IAX jitter buffer sometimes has problems on short ping time links. At the time we where on a private T1 with 4ms ping times. We re enabled our jitter buffer now that we are on a DSL connection and our ping time is between 56 and 70 ms. > On Fri, 2004-01-02 at 06:23, Dawid Mielnik wrote: > > Hi all, > > > > I have my asterisk setup as following: > > > > IP 2 x E1 > > x-lite <-------> Asterisk -------> PSTN > > > > > > When I place a call from x-lite to PSTN, the quality of the sound in the > > direction x-lite -> PSTN is very bad. That is, the voice of the x-lite user, > > heard by the PSTN user is choppy and makes communication not very pleasant. > > The sound is choppy as if bits of data were lost. The strange thing is that > > the x-lite user hears the PSTN user fine ! > > > > In x-lite, I have swithed off sience detection (transmit silence - yes), > > this has improved the sound quality but did not eliminated the problem. I > > have fed a countinious sound into the microphone and still got chops in the > > sound. I have also tried changing the codecs gsm, alaw, ulaw - but I get the > > same problem with all of them. Maybe the problem lies somewhere in audio > > buffering settings on x-lite ? > > > > Has anyone ever had this sort of problem and managed to deal with it ? I > > would greatly appreciate your help ! > > > > Best regards, > > > > Dave > > > > > > _______________________________________________ > > 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 -- Steven Critchfield <[EMAIL PROTECTED]> _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
