<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
Talker echo is usually caused by echo at far end tail circuit. With
VOIP that delay is going to be too long for the talker's phone to
cancel. It will have to canceled closer to the source of the echo.<br>
<br>
Otherwise, AFAIK, all cisco phones (except soft) have local ecan to
prevent speaker audio from going back into mic.<br>
<br>
<br>
<a class="moz-txt-link-freetext" href="http://www.voiptroubleshooter.com/problems/echo.html">http://www.voiptroubleshooter.com/problems/echo.html</a><br>
<a class="moz-txt-link-freetext" href="http://www.cisco.com/en/US/partner/docs/ios/solutions_docs/voip_solutions/EA_ISD.html">http://www.cisco.com/en/US/partner/docs/ios/solutions_docs/voip_solutions/EA_ISD.html</a><br>
<a class="moz-txt-link-freetext" href="http://www.cisco.com/en/US/partner/tech/tk652/tk698/technologies_tech_note09186a0080149a1f.shtml">http://www.cisco.com/en/US/partner/tech/tk652/tk698/technologies_tech_note09186a0080149a1f.shtml</a><br>
<br>
/Wes<br>
<br>
Jeff Ruttman wrote:
<blockquote
style="border: medium none ! important; padding-left: 0px ! important; padding-right: 0px ! important; margin-left: 0px ! important; margin-right: 0px ! important;"
cite="mid:07365C3161D8D8419EE51C3834C0220502D8F657@ma1-exc01.ec2802.elderc.org"
type="cite">
<meta http-equiv="Content-Type" content="text/html; ">
<meta content="MSHTML 6.00.6000.17080" name="GENERATOR">
<div><span class="997510914-31082010"><font face="Arial" size="2">Greetings,</font></span></div>
<div><span class="997510914-31082010"></span> </div>
<div><span class="997510914-31082010"><font face="Arial" size="2">Can
someone confirm or deny my memory? I recall reading that phone loads
for 7911 phones don't really contain echo cancellation programming. In
looking now, I can't find much info on echo cancellation in relation to
different phone models/loads in general and nothing on 7911s.</font></span></div>
<div><span class="997510914-31082010"></span> </div>
<div><span class="997510914-31082010"><font face="Arial" size="2">We
have an office mostly full of 7911s recently complaining of talker
echo. There are loads out on cisco.com newer than the ones we're
using, and while it's not hard to change phone loads, it would be
pointless to do it if the phone loads don't contain echo cancellation.</font></span></div>
<div><span class="997510914-31082010"></span> </div>
<div><span class="997510914-31082010"><font face="Arial" size="2">Any
insight?</font></span></div>
<div><span class="997510914-31082010"></span> </div>
<div><span class="997510914-31082010"><font face="Arial" size="2">Thanks</font></span></div>
<div><span class="997510914-31082010"><font face="Arial" size="2">jeff</font></span></div>
<pre wrap="">
<hr size="4" width="90%">
_______________________________________________
cisco-voip mailing list
<a class="moz-txt-link-abbreviated" href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a>
<a class="moz-txt-link-freetext" href="https://puck.nether.net/mailman/listinfo/cisco-voip">https://puck.nether.net/mailman/listinfo/cisco-voip</a>
</pre>
</blockquote>
</body>
</html>