VOIP help needed

Archived from groups: comp.dcom.voice-over-ip (More info?)

Hello all:

I have a few questions and would appreciate
some assistance:

We have a T1 between a router in the Philippine
and US.

1. Using G723 Codec, how many concurrent calls
can be supported over this T1, not looking for
theoretical answer, more like practical real
life answer.

2. Since this is a "direct T1" (The Telco told us so!) from
there to here, any "compression" "queuing" "QOS" that
I need to do or would like to do to improve call
quality? I'm thinking maybe doing cRTP on the routers
to improve bandwidth.

Thanks,
John.