Hello David, Bad voice quality may be caused by many reasons. I suggest you test the two servers separately first. Monitor CPU load during calls in each server and verify if the communication devices used by asterisk (voice boards, network interfaces ... ) don't share interruptions. In iax.conf try to replace the two lines jitterbuffer=200 jitterbuffer=yes with the six following jitterbuffer=yes
dropcount=2 maxjitterbuffer=500 maxexcessbuffer=80 minexcessbuffer=10 jittershrinkrate=1 You may also want to take a look at http://www.voip-info.org/wiki-QoS Regards Lamine ----- Original Message ----- From: <[EMAIL PROTECTED]> To: <[email protected]> Sent: Tuesday, May 03, 2005 2:51 PM Subject: [Asterisk-Users] Voice Quality > Hello, > > I have setup two * servers and they are communicating using IAX. I'm > passing calls from SRV A (internet connection T1) to SRV B (internet > connection: 512). > > For some reasons I have an issue with the quality. The voice is a bit > scratchy. I have tried iLBC and SPEEX, but it didn't make any difference. > > Now, assuming that I have an issue with Bandwidth, what would be the best > way to configure my iax.conf. (A bit confused about jitterbuffer and tos) > > Here is my iax.conf @ location A: > > [general] > port=4569 > bandwidth=low > disallow=all > allow=ilbc > ;allow=ulaw > ;allow=speex > jitterbuffer=200 > jitterbuffer=yes > tos=lowdelay > > and iax.conf @ location B: > > [general] > port=4569 > bandwidth=low > disallow=all > allow=ilbc > ;allow=ulaw > ;allow=speex > jitterbuffer=200 > jitterbuffer=yes > tos=lowdelay > > [guest] > type=user > context=default > callerid="Guest IAX User" > disallow=all > allow=ilbc > > > Thanks guys > > > _______________________________________________ > Asterisk-Users mailing list > [email protected] > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > _______________________________________________ Asterisk-Users mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
