[Asterisk-Users] Very bad echo (appears that...)

[YO Internet Information]

Hi,

Uncomment the following line in the makefile in /usr/src/zaptel

KFLAGS+=-DAGGRESSIVE_SUPPRESSOR

Do a make clean install in this directory and reload wcfxo driver (rmmod and
then modprobe). Try again and see if there is any improvement.

Tan
www.telappliant.com



----- Original Message ----- 
From: "Asterisk PBX" <asterisk at icus.com>
To: <Asterisk-users at lists.digium.com>
Sent: Sunday, September 21, 2003 11:02 PM
Subject: [Asterisk-Users] Very bad echo (appears that...)


The echo canceller algorithms aren't doing anything.  We get extreme
echo during the conversation, it appears even before the call connects,
the echo is there...

This only happens with SIP to/from WCFXO (analog POTS).  Looking at the
Zaptel configuration:

/etc/asterisk/zapata.conf:
echocancel=yes
echocancelwhenbridged=yes
rxgain=0.8
txgain=0.8

(although none of the above options seem to make any difference).

Is there any debugging we can turn on to see what the problem may be,
this definitely will hurt production of this environment.

Thanks,
Lenny
---
Lenny Tropiano                          E-mail: lenny at voiping.com
Partner, Networking Specialist          Pager:  pager-lenny at voiping.com
VoIPing, LLC                            URL:    http://www.voiping.com/
PO Box 867, Cedar Park, TX 78630-0867   512-698-8647(V) 425-944-6391 (F)




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