<div>Steve I understand your theory. We have Poycom 501 phones. Prior upgrading to PRI we were till date using 4 analog lines connected with TDM card from digium & no echo for pure SIP to SIP lines.</div> <div> </div> <div>Now I have TE212P which had onboard echo cancellor.</div> <div> </div> <div>I am trying make myself clear before I blame on any network. B'cos for sure we have a spegati of networks & no QoS. Also the intresting thing is if I call from one extension to other dialing the main line & then extension the call is crystal clear. but when dialing a direct extension its a hell of echo.</div> <div> </div> <div>--</div> <div>Deepak<BR><BR><B><I>Stephen Davies <stephen.l.davies@gmail.com></I></B> wrote:</div> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">On 09/06/07, Deepak Naidu <DEEPAK_NAI@YAHOO.COM>wrote:<BR>> Ya, I have done that,
below is zapata.conf. Also we had an TMP card with<BR>> analog lines. & SIP cals were great on them. & now when we switched over.<BR>> SIP calls have echo.. which shouldnt be at all.<BR><BR>If you are getting echo on pure SIP to SIP calls, there's no point in<BR>fiddling around with your zapta.conf. That file is for configuring<BR>chan_zap, which is used to talk to Zap/ channels. Your calls are SIP<BR>to SIP so the zap channel and your PRI aren't being used at all.<BR><BR>SIP calls are "pure digital" 4 wire lines so no electrical (Hybrid)<BR>echo will be present. The phones should not generate echo. If they<BR>are, they are presumably nasty phones (what kind are they?) and you<BR>should get properly made phones.<BR><BR>Steve<BR>_______________________________________________<BR>--Bandwidth and Colocation provided by Easynews.com --<BR><BR>asterisk-users mailing list<BR>To UNSUBSCRIBE or update options
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