[Asterisk-Users] Beyond T1

[Marcelo Pacheco]

A T1 is 24 64000bps channels.
The 56000bps thing is when robbed bit signalling is used, it steals bits from 
each voice channel for call signalling, while on the E1 one channel is used 
for that. When PRI signalling is used each voice channel is the full 64000 
bps thing.

Marcelo Pacheco

Em Qui 16 Set 2004 13:17, Andrew Thompson escreveu:
> Christopher Jacob wrote:
> > All,
> >
> > This may be a stupid question, but here it is...
> >
> > What interface gives the most density? Do I top out at T1's? For
> > instance, 4 t1's to the Digium Quad span t1 card. Is there an interface
> > available for T3 or DS3?
>
> Depending on where you using the circuits, you might try an E1. It uses
> the same total bandwidth as a T1(I think), but splits the channels at
> 56K instead of 64K, yielding more channels. (And now I can't remember
> the number.)
>
> I haven't heard of direct DS3 connectivity...
>
> Just stretching my imagination a little bit, you might be able to plug a
>   DS3 into a H323 box, and then feed the IP-side of the calls to
> asterisk....