| reply to sporkme
Re: Just Maybe... quote:
..., a T3 28 T1's, or 672 calls over T3. By putting all CO services over a few fat pipes, they waste less capacity. A T3 of VoIP calls could have at least double the amount of calls at the same quality, maybe more...
The default Codec (G.711) for the Cisco call manager is 64kbps and supports codecs that go as low as 5.3kbps. That's a lot of call's over a T3! An example would be one of the local wireless carriers using 8kbps codecs. When you do the math it comes out to 11.2kbps of bandwidth used per call. So taking the circuit switching out of the local infastructure and going IP is a no brainer.
It will be interesting to see if Qwest will really make a IP local loop available. I've heard of Centrex IP and a few other "planned service", but what it'll probably be is an integrated service (voice and data over T1, T3, DSL, etc.). This is why the big race to get everyone onto their ATM networks.
Too bad the article wasn't clear on if Qwest was talking about inter-office or local loop facilities.
-jinx
[text was edited by author 2001-10-17 01:44:50] |
