[asterisk-users] TDM400P FXO click sounds

[ggonzalez at telviso.com.ar]

Hello,
 
I have a TDM400P with 4 FXO ports, currently using three.  When sending or 
receiving calls on this card, there is a nearly constant 
popping/clicking sound, it is related to the 
echo cancellation?.  I adjusted my gains properly, but to no avail.  I 
even found that setting echotraining=no in zapata.conf didn't change the 
scenario at all.  I've plugged analog handsets into the same jacks, and 
the line is crystal-clear. Below is my zapata.conf, if you guys have any 
ideas how I might resolve this, I'd appreciate it.  I have installed from
sources Asterisk 1.2.22 and zaptel-1.2.19 on a debian etch x86_64.

[channels]
language=es
context=ent-4229
;rxwink=300
usecallerid=yes
hidecallerid=no
; Whether or not to enable call waiting on internal extensions
; With this set to 'yes', busy extensions will hear the call-waiting
; tone, and can use hook-flash to switch between callers. The Dial()

; app will not return the "BUSY" result for extensions.
;
callwaiting=yes
threewaycalling=yes
transfer=yes
;canpark=yes
cancallforward=yes
callreturn=yes
echocancel=yes
echocancelwhenbridged=no
echotraining=yes
echotraining=128
relaxdtmf=yes
rxgain=3.0
txgain=3.0
callgroup=1
pickupgroup=1
immediate=no
;busydetect=yes
;busycount=4
callprogress=no
;busypattern=500,500
;answeronpolarityswitch=yes
;hanguponpolarityswitch=yes
;callprogress=yes
faxdetect=incoming
faxdetect=outgoing

signalling=fxs_ks
group=1
channel=1

signalling=fxs_ks
group=2
channel=2;


singalling=fxs_ks
group=3
channel=3;

;singalling=fxs_ks
;group=1
;channel=4