On Sun, 2004-04-11 at 13:01, Tom wrote: > Our new * server with Cisco SIP phones is now working pretty well. But we > still have one problem that has not been resolved. > > The Cisco SIP phones have a consistent echo. It sounds like about a 500ms > delay. This echo is not heard from the POTS side. It is heard when > calling another SIP extension in our office. We are running 6.3 firmware > on the phones. > > Any suggestions would be appreciated. > > Many thanks, > > Tom >
Does the echo have any pings associated with it? I'm running 7960 (firmware 6.3) and it works great with the exception of echo, which has a noise similar to a sonar ping associated with it. It does not occur all the time, and is independent of whether I make the call using IAX2 (through Voice Pulse Connect) or ZAP (PSTN). I do have echo cancellation on and have not adjusted rx/tx gain. I tried adjusting it once with the effect, so reverted it back to what the default was. I've tried just about every tweak in the sip.conf, SIPDefault.cnf and SIP<mac>.cnf files I've been able to come across. I am running a single X100P and a TDM400P (with three modules installed). I will be upgrading to a T100P and Adtran TA750 this week. Mitch Sharp _______________________________________________ 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
