Echo problems

Hi

I have an A400P with 3 FXO modules, and I have some echo problems . How I can remove echo ?

Using:

Asterisk 1.2.13
zaptel 1.2.10
CentOS release 4.4 (Final)
Kernel 2.6.9-42.0.3.EL

/etc/zaptel.conf:

# Span 1: WCTDM/0 "Wildcard TDM400P REV E/F Board 1"
fxsks=1
fxsks=2
fxsks=3
# channel 4, WCTDM, inactive.

# Span 2: ZTDUMMY/1 "ZTDUMMY/1 1"

# Global data

loadzone = cl
defaultzone = cl

/etc/asterisk/zapata.conf

[trunkgroups]

[channels]

language=es
context=from-zaptel
signalling=fxs_ks
rxwink=300 ; Atlas seems to use long (250ms) winks

busydetect=yes
busycount=6

hanguponpolarityswitch=yes
answeronpolarityswitch=yes


echocancel=yes
echocancelwhenbridged=yes
echotraining=800
rxgain=3.5
txgain=5.5
inmediate=no

faxdetect=both

#include zapata-auto.conf

group=1

/etc/asterisk/zapata-auto.conf

callerid=asreceived

; Span 1: WCTDM/0 "Wildcard TDM400P REV E/F Board 1"
signalling=fxs_ks
context=from-line1
group=0
channel => 1

signalling=fxs_ks
context=from-line2
group=0
channel => 2

signalling=fxs_ks
context=from-line3
group=0
channel => 3

; channel 4, WCTDM, inactive.

; Span 2: ZTDUMMY/1 "ZTDUMMY/1 1"

In /etc/asterisk/indications.conf I have info for Telefonica CTC Chile

[cl]
description = Chile
; According to specs from Telefonica CTC Chile
ringcadence = 1000,3000
dial = 400
busy = 400/500,0/500
ring = 400/1000,0/3000
congestion = 400/200,0/200
callwaiting = 400/250,0/8750
dialrecall = !400/100,!0/100,!400/100,!0/100,!400/100,!0/100,400
record = 1400/500,0/15000
info = 950/333,1400/333,1800/333,0/1000
stutter = !400/100,!0/100,!400/100,!0/100,!400/100,!0/100,!400/100,!0/100,!400/100,!0/100,!400/100,!0/100,400

Thanks

Sorry, I forgot login.

It seem to me you rxgain is set to low, try setting your rxgain to 8 and keep your txgain around 2, and see if you get better results.

Works fine now !!!

Thanks