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

[Rob Lith]

1500 to 3000 is poor - Satellite delay is approximately 270 milliseconds
(the time required for the signal to travel 35,800 km into space and
return). If associated signal processing time through baseband equipment is
included, total path delay is closer to 320 milliseconds.

In voice communications, the most noticeable effect of this delay is echo,
anything from 600ms upwards will not be nice.

Regards
Rob

On 2/1/06, Greg Oliver <goliver at cistera.com> wrote:
>
> Depends on the type of satellite, but generally 1500 - 3000ms.
>
> On Wed, 2006-02-01 at 18:28 +0100, Master_PE wrote:
> > What is a normal dealy on a satelite installation?
> >
> > Regards,
> >
> > Master_PE
> >
> > Op 1-feb-2006, om 13:26 heeft Garth van Sittert het volgende geschreven:
> >
> > > 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
> > >>
> > >>
> > >> _______________________________________________
> > >> --Bandwidth and Colocation provided by Easynews.com --
> > >>
> > >> Asterisk-Users mailing list
> > >> To UNSUBSCRIBE or update options visit:
> > >>    http://lists.digium.com/mailman/listinfo/asterisk-users
> > >> From - Wed
> > >>
> > >
> > > --
> > > 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
> > > _______________________________________________
> > > --Bandwidth and Colocation provided by Easynews.com --
> > >
> > > Asterisk-Users mailing list
> > > To UNSUBSCRIBE or update options visit:
> > >   http://lists.digium.com/mailman/listinfo/asterisk-users
> >
> > _______________________________________________
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> >
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>
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