I'd be interested to know if this gets worse over time.
Shutdown asterisk, remove card driver, load card driver, load asterisk.... then test.
========================================== Rod Bacon Empowered Communications Ground Floor, 102 York St. South Melbourne Victoria, Australia. 3205 Phone: +613 99401600 Fax: +613 99401650 FWD: 512237 ICQ: 5662270 ========================================== alan wrote:
Hello, After solving the other "low hanging fruit" audio issues in our Asterisk PBX, we are left with occasional cases of severe echo which we have not found a solution for yet. Our system: - Asterisk 1.2.0-beta1 - TE110P on a PRI - TDM04 and TDM40, but these are unrelated to current echo issues - Fedora core 3 - Echo canceller KB1 Most calls have minimal, acceptable echo levels. But occasionally, we get a call where the echo is delayed by a substantial amount (sometimes around 250ms), and sounds as loud as the remote party. One example: when one number (local to the same CO as our PRI) calls us, the echo on our end is unbearably bad. When we call them, No Problem. Am I right in guessing that we're unlikely to solve this in a system-wide manner on our end, and at best we'd have to convince the phone company they're misconfigured, for one remote phone number at a time? Some other specific questions: - Gain tuning: Is the ztmonitor quantitative target value 14500 or 14844? These two sources conflict on this point: http://www.voip-info.org/wiki/view/Asterisk+zapata+gain+adjustment http://lists.digium.com/pipermail/asterisk-users/2004-November/071301.html - Is the difference between 14500 and 14844 big enough to worry about? If my gain settings are incorrect, am I going to be seeing quantitative values a few hundred away, or ten thousand away (for example)? - Is gain tuning effective using CO or asterisk-local milliwatt sources useful on a PRI line? Presumably, the path to the local CO's milliwatt line is all digital, and the loopback path to call our own internal milliwatt source will almost definitely be all digital, so where would the loss come from? - Assuming gains are tuned correctly, or don't matter for the PRI, is there any other hope I have for solving these echo issues? Thanks, Alan Ferrency pairNIC pair Networks, Inc. [EMAIL PROTECTED] _______________________________________________ --Bandwidth and Colocation sponsored by Easynews.com -- 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
_______________________________________________ --Bandwidth and Colocation sponsored by Easynews.com -- 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
