[Asterisk-Users] VAD (silence suppression) on Asterisk

[Lee Goodman]

Thanks!!

Just added to the bug list as a request

Even with wide pipes , a few g711 calls , running without VAD , can really
fill a pipe.

Lee Goodman

----- Original Message -----
From: "John Todd" <jtodd at loligo.com>
To: <asterisk-users at lists.digium.com>
Sent: Wednesday, August 20, 2003 4:41 PM
Subject: Re: [Asterisk-Users] VAD (silence suppression) on Asterisk


> >Thanks, that's the answer I was looking for.
> >
> >Do we know if VAD will ever be supported? I know some people don't like
VAD
> >and in my testing, how well VAD works depends on how well it was coded
(and
> >the hardware I suspect). I have seen very good and very bad
implementations
> >of VAD.
>
> Hard to give an answer to your question without a crystal ball.  :)
>
> VAD is actually useful in situations where you have a long, narrow
> bandwidth pipe and users are already anticipating poor voice quality.
> I could see it as a useful feature for long-haul VoIP traffic
> overseas or over exotic network stub connections.
>
> >I have a real need for VAD to work (for bandwidth reasons). So if VAD
isn't
> >currently in the Asterisk development schedule, can I request it be
added?
>
> Yes, you can.  Go to http://bugs.digium.com/  and put in a feature
> request.  To enhance the chances of your request actually being
> implemented, include pointers to the RFCs that cover VAD with RTP, or
> IEEE VAD specs, or whatever documentation you can find that might
> assist a programmer in gettin VAD implemented with the least amount
> of their effort.  This does not guarantee VAD being added, but it
> helps more than a less-specific request might otherwise.
>
> JT
>
>
> >Thanks
> >
> >Lee Goodman
> >
> >----- Original Message -----
> >From: "Eduardo Goncalves" <eduardo at acenet.com.br>
> >To: <asterisk-users at lists.digium.com>
> >Sent: Wednesday, August 20, 2003 1:21 PM
> >Subject: Re: [Asterisk-Users] VAD (silence suppression) on Asterisk
> >
> >
> >>
> >>  When I turn on VAD on cisco ATA186, asterisk shows:
> >>
> >>  Aug 20 11:12:20 NOTICE[618513]: File rtp.c, Line 239
(process_rfc3389):
> >RFC3389 support incomplete.  Turn off on client if possible
> >>
> >>  RCF3389 defines Payload for Comfort Noise, that is used with VAD.
> >>  So I turned it off on my endpoints (ATA186 and c827-4v)
> >>
> >>
> >>  Eduardo
> >>
> >>
> >>  On Wed, 20 Aug 2003 11:35:14 -0500 (CDT)
> >>  Brian West <brian at bkw.org> wrote:
> >>
> >>  > VAD is evil. I hate it.  I find when we used it.. you keep asking
people
> >>  > to repeat stuff all the time.. and it was just anoying.
> >>  >
> >>  > bkw
> >>  >
> >>  > On Wed, 20 Aug 2003, WipeOut . wrote:
> >>  >
> >>  > > > Does the Asterisk server support VAD (aka Silence Suppression)?
I
> >want my SIP phones (7960's) to use VAD when dialing out the x100P
interface.
> >I know the phone can do VAD , can the Asterisk server be setup to do it?
and
> >if so, where do I set the configuration?
> >>  > > >
> >>  > > > Thanks
> >>  > > >
> >>  > > Lee Goodman
> >>  > >
> >>  > > Somthing tells me that it is not supported but it is somthing that
I
> >would like to see supported as well..
> >>  > > --
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