[Asterisk-Users] (newby) IAX Trunk on low bandwidth connection

[Garth van Sittert]

Hi Cosmin

You should be able to get about 12 simultaneous calls on a 128k line and 
about 28 on a 256k line according to asteriskguru's bandwidth calculator 
http://www.asteriskguru.com/tools/bandwidth_calculator.php.

Kind Regards
Garth

BitCo Data Communications
http://www.bitco.co.za

Cosmin Prund wrote:
> Hello everyone, this is my first post to the list, so hello again.
>
> We're a small company in Romania and we're trying to set up a really small
> version of "call center". That is, we want to get a few land-lines from our
> telco in different countys and "bridge" all calls to our HQ, in order to
> make it cheeper for our clients to call us.
>
> Unfortunatelly there's no ISP in our area that can deliver a broadband
> connection for anything less then an arm and a leg, so we're considering
> runing an * <-> * connection using VoIP over a low bandwidth connection
> (we're considering 128kbit but we might be able to go to 256kbit).
>
> The bandwidth price is not a problem for our "satelite" installations, we
> cand get acceptably priced broadband (~256kbit) so the distant *'s will have
> propper connections. 
>
> My question:
>
> Is 128kbit a wide enough connection for 1 simultaneous conversation, using
> IAX protocol with the comercial version of the g729 codec?
>
> I'm expecting this to be engough for more then 1 conversation (after all a
> single line analog connection is rated at 64kbit and I'm getting double that
> bandwidth) 
>
> Cosmin Prund
>
>
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-- 
Garth van Sittert
BSc (Physics & Computer Science)
-----------------
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Email:  garth at bitco.co.za
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