[Asterisk-Users] Calculating required bandwidth

[Ed Devine]

You can encapsulate it as ppp, still some overhead, but less I think than
HDLC.

Ed
----- Original Message ----- 
From: "Kevin P. Fleming" <kpfleming at starnetworks.us>
To: "Asterisk Users Mailing List - Non-Commercial Discussion"
<asterisk-users at lists.digium.com>
Sent: Thursday, December 16, 2004 1:36 PM
Subject: Re: [Asterisk-Users] Calculating required bandwidth


> Andrew Kohlsmith wrote:
>
> > RTP has 12 octets all its own, and still need 12 bytes of IP overhead,
so it
> > is actually costlier: I'll spare you all the calculations but it's 20
> > channels of SIP G.711 audio per T1, likely with enough room for
> > signalling.  :-)
>
> And you can't run straight IP over a T1 circuit either; it's usually
> framed in HDLC frames. There's a little more overhead for you <G>
>

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