[Asterisk-Users] Echo in CAPI channels

[igil at itranser.com]

Hello all,

Recently we change our traditional pbx with an Asterisk pbx,
All works fine, but almost all incoming calls that we recibe, we ear our
own voice like an echo in our phone. The person who we are talking ear us
fine, but we ear echo and sometimes interferences on the phone.
We are using diferent hardware phones but the echo persists.

Thanks in advice.

Ismael

;
; CAPI config
;
;
[general]
nationalprefix=0
internationalprefix=00
rxgain=0.8
txgain=0.8

[interfaces]

;#########config de la primera interface CAPI##########333
msn=XXXXXXXXXXX
incomingmsn=*
controller=1
softdtmf=1
accountcode=
context=salientes-rdsi
echosquelch=1
echocancel=yes
echotail=64
;callgroup=1
;deflect=12345678
devices=4

;###############segunda####################################

msn=XXXXXXXXXXX
incomingmsn=*
controller=2
softdtmf=1
accountcode=
context=salientes-rdsi
echosquelch=1
echocancel=yes
echotail=64
;callgroup=1
;deflect=12345678
devices=4

;################tercera####################################

msn=XXXXXXXXXXX
incomingmsn=*
controller=3
softdtmf=1
accountcode=
context=salientes-rdsi
echosquelch=1
echocancel=yes
echotail=64
;callgroup=1
;deflect=12345678
devices=4

;################cuarta#####################################

msn=XXXXXXXXXX
incomingmsn=*
controller=4
softdtmf=1
accountcode=
context=salientes-rdsi
echosquelch=1
echocancel=yes
echotail=64
;callgroup=1
;deflect=12345678
devices=4



;msn=50
;incomingmsn=*
;controller=1
;softdtmf=1
;accountcode=
;context=demo
;echosquelch=1
;echocancel=yes
;echotail=64
;callgroup=1
;deflect=12345678
;devices=2