[Asterisk-Users] Asterisk Codecs [G.729]

[Unavailable ID]

Absolutely agree,

ITU standard is 64Kbits/sec.

VoIP traffic with U-law per channel is 83Kbits/sec.

VoIP traffic with U-law per call is 166Kbits/sec [measuring bandwidth per
call]

----- Original Message ----- 
From: "Nicolas Bougues" <nbougues-listes at axialys.net>
To: <asterisk-users at lists.digium.com>
Sent: Wednesday, March 10, 2004 9:55 AM
Subject: Re: [Asterisk-Users] Asterisk Codecs [G.729]


> On Wed, Mar 10, 2004 at 09:03:57AM -0800, <Unavailable ID> wrote:
> > Rich,
> >
> > In real world, using real tool, getting real number.  You don't expect
to
> > either talk only mode or listen only mode.  Per call must have Rx & Tx
for
> > inbound & outbound.
> >
>
> [...]
>
> >
> > Engineering rate is per channel but to calculate the bandwidth
consumsion,
> > it must be in realtime full-duplex.
> >
>
> Sure, but in the real world, IP trafic is mostly carried over full
> duplex links (either serial or switched Ethernet), so you usually
> consider the trafic in one direction only (provided it's symetrical).
>
> If I consider an E1 to be 2 Mbps (2 inbound, 2 outbound, really), and
> Fast Ethernet to be 100 Mbps (again, 100+100 in full duplex), I shall
> consider U-law to be 83 kbits/s, not 166.
>
> -- 
> Nicolas Bougues
> Axialys Interactive
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users at lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
>