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

[Rob Lith]

What codec is that using. G.729 will give you 10 calls at best over 256k
unless you're trunking with IAX2? I don't know anyone using lpc10...

Remember a G.729 8k codec turns into 23.63 Kbps with all the overheads...

Regards
Rob

On 2/1/06, Garth van Sittert <garth at bitco.co.za> wrote:
>
> 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)
> -----------------
> Mobile: +27 (0)83 791 6662
> Email:  garth at bitco.co.za
> Phone:  08600 BITCO
> Web:    www.bitco.co.za
>
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