You're probably looking for the 'echotraining' facility specified in
/etc/asterisk/Zapata.conf. From that file:
; In some cases, the echo canceller doesn't train quickly enough and
there
; is echo at the beginning of the call. Enabling echo training will
cause
; asterisk to briefly mute the channel, send an impulse, and use the
impulse
; response to pre-train the echo canceller so it can start out with a
much
; closer idea of the actual echo. Value may be "yes", "no",
or a number
of
; milliseconds to delay before training (default = 400)
;
;echotraining=yes
Hope that helps.
Kris Boutilier
Information Services Coordinator
Sunshine Coast Regional District
________________________________
From: asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Nora
Lavelle
Sent: Friday, October 28, 2005 11:23 AM
To: asterisk-users@lists.digium.com
Subject: [Asterisk-Users] Sipura 841 echo cancel question
Hi there,
I'm new to asterisk and hoping you can help out. I have a small
deployment of asterisk running. 4 sipura 841 phones and a linux box with
a digium TDM400P. When a user makes a call there is usually echo for
about 15 seconds and then it goes away. I have read through all the echo
stuff and to be honest totally confused. Not sure what to set or how to
test.
Any guidance totally appreciated ! Thanks in advance !
Nora
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