[c-nsp] 2821 voice configuration

[Brett Looney]

> 95% of the calls should be G.711, so that leaves me with 64 channels.
> So in theory I should be able to fully utilize both E1s with calls
> originating from SIP, right? What about E1-to-E1 calls that are just
> switched in the box? Do they take any DSP resources at all?

Oh, and I forgot - you'll need 64 DSP resources in any case if you're doing
the whole 30 channels on both E1s. You need one DSP resource per E1 call
terminated with G.711.

B.