[asterisk-users] Zaptel -> DAHDI: now echo

Jean-Yves Avenard jyavenard at gmail.com
Tue Aug 18 07:50:25 CDT 2009


Hello

I have upgraded our asterisk box from zaptel to dhadi two weeks ago...

Since, there has been quite a significant amount of echo when making a
call. Only for the local outgoing call, the person on the other side
doesn't hear any echo.

This is with a TE-110P ISDN PRI card ..

I've pretty much took the original zaptel configuration and used it
as-is with the dahdi one ; to no available..

Any help would be greatly appreciated.

Here is what zaptel.conf and zapata.conf used to be:
/etc/zaptel.conf:
loadzone = au
defaultzone=au
#TE110P
span=1,1,0,ccs,hdb3,crc4
bchan=1-10
dchan=16

/etc/asterisk/zapata.conf
[channels]
language=en
usecallerid=yes
hidecallerid=no
callerid=asreceived
restrictcid=no
usecallingpres=yes

; ISDN Exchange Lines (Fractional E1 PRA10)
switchtype=euroisdn
signalling=pri_cpe
immediate=no
pridialplan=unknown
prilocaldialplan=unknown
overlapdial=yes
echocancel=yes
echocancelwhenbridged=yes
echotraining=256
rxgain=1.0
txgain=8.0
context=incoming
faxdetect=incoming
group=1
channel=>1-10
----

now for the dahdi configuration:
/etc/dahdi/system.conf:
loadzone = au
defaultzone=au
#TE110P
span=1,1,0,ccs,hdb3,crc4
bchan=1-10
dchan=16

/etc/asterisk/chan_dahdi.conf
[channels]
language=en
usecallerid=yes
hidecallerid=no
callerid=asreceived
restrictcid=no
usecallingpres=yes

switchtype=euroisdn
signalling=pri_cpe
immediate=no
pridialplan=unknown
prilocaldialplan=unknown

echocancel=yes
echocancelwhenbridged=yes
echotraining=256

rxgain=1.0
txgain=8.0
context=incoming
faxdetect=incoming
group=1
channel=>1-10

---



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