[Asterisk-Users] TE411P Really Bad Echo

[Stagg Shelton]

This is with a TE411P (Digium Quad Span PRI with Voice Processing 
Module). When I say pulled the zaptel trunk source, I mean I issued the 
following command which pulled the latest available source code at that 
time:

svn checkout http://svn.digium.com/svn/zaptel/trunk zaptel

I followed up to a message previously with the exact trunk version that 
I downloaded:  SVN-trunk-r941

Stagg Shelton
www.oneringnetworks.com


Eric Bishop wrote:

> 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 
> <mailto: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 <http://www.oneringnetworks.com>
>
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