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<DIV><SPAN class=111033612-26052005><FONT face=Arial size=2>I have Asterisk
running on my LAN with softphone clients (SJPhone) and Cisco 7940/60s, all using
SIP. I also have a few remote sites connecting to my Asterisk
server. I am getting an echo back of my voice when talking with one
particular site. The caller does not hear an echo on their end. All
calls on the LAN or to other sites do not produce an echo. When the caller
places his SJPhone on mute there is no echo. The caller is using a
standard PC headset and not a speakerphone. I've tried turning on
echocancel and echotraining in the Zapata configuration, but it had no
effect. </FONT></SPAN></DIV>
<DIV><SPAN class=111033612-26052005><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=111033612-26052005><FONT face=Arial size=2>The website below
states that two IP phones going through Asterisk should not result in a
noticeable echo, instead this is more common when connecting to PSTN lines. The
echo is about 500ms, faint but distracting. Any suggestions would be
greatly appreciated.</FONT></SPAN></DIV>
<DIV><SPAN class=111033612-26052005><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=111033612-26052005><FONT face=Arial size=2><A
href="http://www.voip-info.org/wiki-Asterisk+Echo+Avoidance">http://www.voip-info.org/wiki-Asterisk+Echo+Avoidance</A></FONT></SPAN></DIV>
<DIV><SPAN class=111033612-26052005><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=111033612-26052005><FONT face=Arial
size=2>Thanks!</FONT></SPAN></DIV></BODY></HTML>