[asterisk-users] Snom 320 with TDM02B and echo problems

Michael J. Liberatore mike240se at straightandnarrowinc.org
Thu Nov 8 23:36:49 CST 2007

I have had similar problems.  My solution was to upgrade to a sangoma
a200d that has echo canellation built in.  I will NEVER buy an fxo card
that doesn't have onboard echo cancellation ever again.  There is just
no other way to get good sound and no echo.


-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Paul Hales
Sent: Friday, November 09, 2007 12:06 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] Snom 320 with TDM02B and echo problems

I have found the new 7.x.x series firmware to be pretty much unusable in
speakerphone mode, which is slightly disappointing as I like the Snom


On Fri, 2007-11-09 at 03:34 +0100, Philipp Kempgen wrote:
> Jason White wrote:
> > On Thu, Nov 08, 2007 at 10:22:41AM +0100, voip crazy wrote:
> >> I instaled an asterisk 1.2.X, with two lines FXO and two snom 3200 
> >> phones, on an amd_64 processor.
> >> All goes well, the voice is clear on the remote side but in the 
> >> Voip side, where the Snom 320 is placed, I hear my voice, but don't

> >> in the line, the echo is on the phone.
> >> I just play with zapata gain values and with the Snom mic volume, 
> >> but the echos does not disapperars.
> >> the phone is updated to firmware 6.5.12, the last i have found.
> > 
> > Mine came with 7.1.8. Perhaps you should contact Snom to find out 
> > whether you can obtain the new version of the firmware.
> http://www.snom.com/en/no_cache/firmware.html
> http://wiki.snom.com/Main_Page
> The 7.x versions can be installed on all snom3x0 but they are in beta 
> state for anything except the 370. The wiki describes how to do that.
> Not sure if upgrading helps with your problem though.
> Regards,
>   Philipp Kempgen

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