[Asterisk-Users] IAX to zaptel echo

[Lee Goodman]

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 at 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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20030820/2819dd23/attachment.htm