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<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></BODY></HTML>