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<DIV><FONT face=Arial size=2>Watch the debug log in /var/log/asterisk while you
are making the call. See if the Echo cancel kicks in. If it doesn't , thats your
problem. Check were in your zapata.conf file the echocancel statements are. It
makes a difference (they have to be before the channel => line)</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Lee</FONT></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=claude.klimos@aheeva.com
href="mailto:claude.klimos@aheeva.com">Claude Klimos</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=asterisk-users@lists.digium.com
href="mailto:asterisk-users@lists.digium.com">asterisk-users@lists.digium.com</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, August 20, 2003 2:16
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [Asterisk-Users] IAX to zaptel
echo</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2><SPAN class=356244617-20082003>Hi
all,</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=356244617-20082003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=356244617-20082003>I am experiencing
a problem with the quality of the voice communication between an IAX based
softphone (WinIAX) and an outside line through a FXO port or even with a
regular analog phone connected to a FXS port. The party using the IAX
softphone hears his own echo a plit of a second after speaking. The party on
the analog end does not experience any echo. I tried to modify the KFLAG
parameter in the Makefile of zaptel to change the algorithm without results. I
also tried to modify the value of the echocancel paramter in zapata.conf
(tried 32,64,yes/128,256) without success. Note the parameter
echocancelwhenbridged is set to yes.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=356244617-20082003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=356244617-20082003>On the other hand,
when I establish a communication between two IAX softphones, I hear no echo.
This leads me to suspect the cards I am using. I have one X100P and one
TDM400P card with 2 modules enabled.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=356244617-20082003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=356244617-20082003>I would like to
know if anyone encoutered this problem and how to minimize/eliminate the echo,
if possible. Also, we will eventually be using a PRI with a T100P or a T400P,
would the echo problem still be present?</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=356244617-20082003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN
class=356244617-20082003>Regards,</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=356244617-20082003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=356244617-20082003>Claude
Klimos</SPAN></FONT></DIV></BLOCKQUOTE></BODY></HTML>