MessageWatch 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)
Lee
----- Original Message -----
From: Claude Klimos
To: asterisk-users@lists.digium.com
Sent: Wednesday, August 20, 2003 2:16 PM
Subject: [Asterisk-Users] IAX to zaptel echo
Hi all,
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.
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.
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?
Regards,
Claude Klimos
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