asterisk users - Oct 2010 - minimum card for dahdi timing source ?

Hi All,

for a vicidial server which uses only voip,
which is the minimum telephony card which would provide the required clock
timing source for conferences to work properly ?

Maybe the Digium TDM410PLF card
without any daughter card
would do the job ?


Thank you very much for supporting.

Have a nice week-end,
Mike

On 10/2/10 11:24 AM, mancyborg at gmail.com wrote:
> for a vicidial server which uses only voip, which is the minimum
> telephony card which would provide the required clock timing source
> for conferences to work properly ?
My recommendation would be to use DAHDI 2.4.0  Just having DAHDI loaded 
is enough to provide timing / mix conferences without any other 
configuration (i.e., no need to load dahdi_dummy).  If your server can 
keep accurate wall time, then it will be able to provide adequate timing 
/ mixing for VOIP.

-- 
Shaun Ruffell
Digium, Inc. | Linux Kernel Developer
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
Check us out at: www.digium.com & www.asterisk.org

On Sat, Oct 02, 2010 at 06:24:24PM +0200, mancyborg at gmail.com
wrote:
>for a vicidial server which uses only voip,
>which is the minimum telephony card which would provide the required clock
timing source for conferences to work properly ?
Can't speak for vicidial, but MeetMe() works fine for me with asterisk
1.4 and ztdummy. I would assume 1.6 with dahdi works similarly...

R

Good news, very well.

Thank you very much and have a nice day,
Mike


On Sat, 02 Oct 2010 11:38:49 -0500
Shaun Ruffell <sruffell at digium.com> wrote:
> On 10/2/10 11:24 AM, mancyborg at gmail.com wrote:
> > for a vicidial server which uses only voip, which is the minimum
> > telephony card which would provide the required clock timing source
> > for conferences to work properly ?
> 
> My recommendation would be to use DAHDI 2.4.0  Just having DAHDI loaded 
> is enough to provide timing / mix conferences without any other 
> configuration (i.e., no need to load dahdi_dummy).  If your server can 
> keep accurate wall time, then it will be able to provide adequate timing 
> / mixing for VOIP.
> 
> -- 
> Shaun Ruffell
> Digium, Inc. | Linux Kernel Developer
> 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
> Check us out at: www.digium.com & www.asterisk.org
> 
> -- 
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On 02/10/10 17:24, mancyborg at gmail.com wrote:
> Hi All,
>
> for a vicidial server which uses only voip,
> which is the minimum telephony card which would provide the required clock
timing source for conferences to work properly ?
>
> Maybe the Digium TDM410PLF card
> without any daughter card
> would do the job ?
>
>
> Thank you very much for supporting.
>
> Have a nice week-end,
> Mike
The cheapest device I've seen to provide a hardware timing source is the 
USB "voice sync tool" from Sangoma:

http://www.sangoma.com/products/hardware_products/specialty_tools.html

I know of at least one person using this with Vicidial successfully.

cheers,
Paul.