[asterisk-users] OT - Which rackable case for mini-ITX boards ?

[Gordon Henderson]

On Sun, 24 Aug 2008, --[ UxBoD ]-- wrote:

> Reason for the G729 is that I have a couple of numbers which come in 
> directly over IAX.  Switched office numbers away from BT onto VoIP to 
> reduce cost :)

Don't use g729 unless you really need it. Even on an old ADSL-1 connection 
in the UK (256Kbps upstream), you can run 2 G711 calls over IAX (b/w 
needed on an IAX trunk for 2 calls is 80+65 = 145Kb/sec each way. (give or 
take) Even 2 SIP calls @ 160Kbps ought to be fine.

However I've transcoded over 10 concurrent g729 calls on a 1GHz VIA 
processor, so it's possible if you really need to do it.

Gordon


>
> Regards,
>
> -- 
> --[ UxBoD ]--
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> ----- "Michael Graves" <mgraves at mstvp.com> wrote:
>
>> For a couple of years I used a Soekris Net4801 as an Astlinux host. It
>>
>> features a 266 MHz Geode CPU. That system was able to sucessfully
>>
>> transcode only two G.729 encoded calls at a time. Since moving to the
>> 1
>>
>> GHz host I've not bothered to try and overtax the transcode capability
>>
>> as it does as much as I need. I expect that it would handle 6-8
>>
>> transcodes at a time, which is more than I need.
>>
>>
>>
>> Bear in mind that you may not need to transcode very often. If you're
>>
>> using primarily the PSTN through the TDM400p then why bother with
>> G.729
>>
>> at all?
>>
>>
>>
>> Michael
>
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