Hi James, I had the same problem. Setting echotraning=yes helped me.
Also, like many people I had to tweak the rxgain and txgain. For me these setting worked well. rxgain=0.0 txgain=-4.0 If I tried to increase the rxgain SIP echo got really bad. Although I could hear the PSTN caller much better. I settled for less echo. ;-) Setting the txgain=-4.0 eliminated echo that my PSTN caller was experiencing. However, it seems that everyone needs different settings dependant upon many factors... http://www.voip-info.org/wiki-Asterisk+echo+cancellation Chad -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of James Freire Sent: Friday, August 06, 2004 4:12 AM To: [EMAIL PROTECTED] Subject: [Asterisk-Users] Lots of Echo with SIP -> Asterisk -> PSTN Hi all. I am having this echo problem on my SIP phones when I am making a call from SIP to a PSTN line through asterisk. The echo goes away eventually after a few seconds when the call starts but it is very aparent during the start of the call. I do have echo cancellation turned on in asterisk as well as on the sip device. This is an ATA and not a SIP phone like a grandstream. I am running asterisk on a PII 350mhz machine and I am not sure if that has anyhing to do with the lack of performance in echo cancelation. I have 4 Digium FXO and 4 FXS ports in this machine. I know it does take a good ammount of CPU power to do echo cancellation. Later today I am getting a faster machine but I just wanted to see if there were any settings or tuning I can do in the compilation of asterisk to get it to perform better. Thanks a lot, James _______________________________________________ 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
