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[lethol at gmail.com]

Hi,

I've used all kinds of digium cards without troubles. My last
installation is using a TDM2400p with VPMADT032 echo cancel module and
after a week of use we noticed that any incoming audio stream gets
clipped / dropped when you speak or when ambient noise is high. The
call basically feels as in a half-duplex channel, but only to the
person behind our asterisk. I found a quick way to recreate by
placing a call using zapata channel, someplace that has an audio
stream (ie. music on hold from another pbx). When one talks into the
phone, one can notice the incoming audio getting muted until you stop
talking.

First I thought it had to do with polycom configuration although we
use the same setup for all installations (VAD, etc), but the same
happens with other sip phones and after more tests I can only recreate
this using the TDM2400p's FXO trunks. I have an older TDM2400p with
no VPMADT032 in production (without this problem), this leads me to
believe there maybe something wrong with VPMADT032 module or with my
card in particular.

Today I rebuilt everything from scratch using latest asterisk 1.2
release, rechecked with the TDM2400p manual zapata configs just to
make sure I wasn't missing something. As the manual suggests, I am
just using echocancel=yes and this should set 128 default value for
the card. In the general zapata options there we have
echocancelwhenbridged=yes. I have played with all yes/no combinations
without luck.

Interrupts and timing stuff are OK, we have good incoming and outgoing
audio quality (as long as its not at the same time).

Anyone else using this card showing the same problems?

Any zaptel/asterisk gurus wanna take a shot at this?

Thanks in advance for your feedback/comments.

Lex

[ruben.zamora at zys.co...]

Hi,
I have a same problem, last week i was working with TE120 with a little
echo in some call, I replace the card
with a TE122B ( Included Echo Cancelation VPMADT032) and there was no
more echo in my call.

But know i have de same probelm with my incoming audio stream gets
clipped / dropped when you speak.

Thanks
Ruben

Lex Lethol escribi?:

[creslin at digium.com]

Ruben Zamora wrote:

[lethol at gmail.com]

Ruben,

Contact support at digium they have a release on a firmware that fixes
this and other issues with the VPMADT032.

Apparently it comes on newer zaptel drivers.

Good luck with your install.

Lex

On Mon, Apr 7, 2008 at 3:11 PM, Matthew Fredrickson <creslin at digium.com> wrote:

[ruben.zamora at zys.co...]

Lex

Thanks a lot. These morning i call Digium Support. One issue that i
miss in my before e-mail is that i have
my Asterisk installed in Monterrey,Mexico and my TELCO provider gave my
MFC/R2.
Asterisk 1.4.18,Zaptel 1.4.9.2 and Unicall.

They told me they can help me because they dont have UNICALL support.

So... I need to investigate more or wait for a new zaptel or anything else.

By the moment i have a big problem.

Thanks

Ruben


Lex Lethol escribi?:

[tzafrir.cohen at xorco...]

On Mon, Apr 07, 2008 at 09:22:30PM -0500, Ruben Zamora wrote:

[lethol at gmail.com]

Ruben,

I am also in Monterrey and have used digium hardware on R2 and PRI.
MFC/R2 is not supported by digium but the zaptel driver requirement is
the same.. what changes is using libpri vs unicall.

Just go ahead and ask them for the firmware update or as Tzafir says
use a newer zaptel that should include the updated firmware.

If in trouble add me to gtalk I'll try to help out any way possible,

Lex

On Tue, Apr 8, 2008 at 1:52 AM, Tzafrir Cohen <tzafrir.cohen at xorcom.com> wrote:

[ruben.zamora at zys.co...]

Lex

Thanks, I all ready download the last svn branches from zaptel.... And i
am going to test these afternoon.

My phone number es 81-83481611.

Thanks

Ruben

Lex Lethol escribi?:

[faraz.khan at emergen.biz]

The newer zaptel (1.4.10) says it includes firmware 1.16 from the
CHANGELOG:
firmware/Makefile, kernel/wctdm24xxp/base.c,
kernel/wctdm24xxp/GpakApi.c, kernel/wctdm24xxp/GpakApi.h: Update
wctdm24xxp's VPMADT032 firmware to version 1.16


However there seems to be no way to get this firmware and it does not seem to be included. It checks my firmware and says 1.07 is okay.


The URL provided does not contain firmware for the VPMADT032

I* have logged a query with digum. Is there a URL to get this firmware from?

On Tue, 2008-04-08 at 11:12 -0500, Ruben Zamora wrote:

[creslin at digium.com]

Faraz R. Khan wrote:

[ruben.zamora at zys.co...]

Today I Install Zaptel 1.4.10 and compiled. No good result.

Then Digium Support send me the last firmware of VPMADT032, and
installed, at the first sight there was no good news.

But then i move in the driver wcte12xp in the file base.c and i have
better results.

Matthew Fredrickson escribi?: