> Mike Schwartz wrote: > >>>I'm experience echo on outgoing calls: > >>> Snom 200 ----> Asterisk ----> T100P ----> PRI ----> called party > >>> > >>>I am getting echo on the Snom 200 phone. The called party does not > >>>hear the echo. > > > > > > > >>Rule of thumb (i.e. a good starting point): if you hear the echo it is > >>coming from somewhere else, your equipment mearly makes it noticable. In > >>this case the echo is probably caused by an analog conversion at the > >>remote party. This is quite common but for calls with a very short latency > >>in the call path this is experienced as a reverb and not an echo. > >> > > > > > > Reverb might be a good description. > > > > If this is the case--that my CLEC is the source of the echo/reverb when they do > > a digital to analog conversion, is there anything I can do about it, except try > > to cancel the echo? Can I ask them to change any settings? They have a 5E > > switch. My collo is right next door--I just cross connect to get my PRI. > > > > The echo I am experiencing is on local calls. > > > > My * server is a dual-processor XEON (2.4 Ghz) Supermicro server. Its > > relatively fast. I will reduce the number of taps, and I was also thinking of > > decreasing the sample size on the phone from 20ms to 10ms. > > It seems that echo is not related to processor speed but type of > hardware inside. Somebody post, one month ago, to have echo with a > Supermicro server then moved to a slower machine, a DL380, and the echo > disappear.
When that discussion was going on a few weeks ago, the echo issue seemed to have been narrowed down to two possibiliites; 1) interrupt service latency, or, 2) PCI bus latencies. Processor speed does not seem to be a driving factor as noted above. I've not heard anyone (as yet) come up with the tools or process for actually identifying the root-cause. Would be nice for those of us that aren't programmers. _______________________________________________ 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
