[Asterisk-Users] TE411P Really Bad Echo

Eric Bishop asterisk.eric at gmail.com
Thu Feb 16 16:16:15 MST 2006


Is this with the TE411P? Also what do you mean by "pulled the zaptel trunk
source"?

On 2/17/06, Stagg Shelton <asterisk at oneringnetworks.com> wrote:
>
> This is my last update to my issue.  Finally my echo problem is
> resolved.  On Monday morning 2/13/06 I pulled the the zaptel trunk
> source.  That night after my customers core business hours we built the
> new zaptel drivers, rebuilt libpri, asterisk, asterisk-addons.  My echo
> disappeared almost entirely  we made a few tweaks with the tx and rx
> gain settings.  My echo problem disappeared completely with the
> additional tweaks to txgain.  Occasionally at the very beginning of a
> local call echo will exist for a second or so, but then it goes away.
>
> In two operating days there has only been one notice from a user about
> experiencing an echo.  All the users were informed that they should
> notify us of any echo experiences.
>
> Here are my final configurations
> zaptel trunk pulled 2/13/06 approx 10:00am est.
> Asterisk 1.2.4
> LibPri 1.2.2
> Asterisk-Addons 1.2.1
> Asterisk-Sounds 1.2.1
>
>
> /etc/zaptel.conf
> =====================
> span=1,1,0,esf,b8zs
> bchan=1-23
> dchan=24
> #bchan=25-47
> #dchan=48
> #bchan=49-71
> #dchan=72
> #bchan=73-95
> #dchan=96
> fxoks=97-100
> loadzone = us
> defaultzone=us
>
> /etc/asterisk/zapata.conf
> ====================
> context=from-pstn
> switchtype=national
> pridialplan=national
> signalling=pri_cpe
> resetinterval=never
> faxdetect=incoming
> usecallerid=yes
> echocancel=yes
> echotraining=800
> rxgain=4.5
> txgain=-13.5
> group=0
> channel=>1-23
>
>
> Thank You for all of your pointers and support in this issue.
>
> Stagg Shelton
> www.oneringnetworks.com
>
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