 BrendanWarr Guitar is here
join:2000-07-14
Littleton, CO | Just Maybe... Maybe, just maybe, this will be a 'call' (no pun intended) to upgrade areas stuck with "POTS and nothing else". Ergo, areas without broadband technologies (like mine). I sure do hope so!! |
 sporkmedrop the crantini and move it, sisterPremium,MVM
join:2000-07-01
Morristown, NJ
 ·Optimum Online
| Two things I remember of Qwest before the US West merger:
-they were doing VOIP for LD
-they were doing it over a private IP network that they had full control over.
-it worked (I've had Qwest LD for years)
The article is shamefully vague about where this fits. I doubt it's in the last mile, but more likely between CO's.
VoIP is not sucky, bad implementations of it are. Two shining examples I know of are my own LD service and the Cisco call center, which besides sounding great routes you to whatever international location has techs awake and answering the phones. During a crunch it can spread the load of support calls all over the world. Needless to say, you can't hear the difference.
For telcos, if they can pull it off in bulk, it's a big money saver. As it stands, a T1 carries 24 voice channels, 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. It gets better when you're looking at replacing say a few OC-3's to a CO that carry seperate services (voice, data, frame, ATM, etc.) with a few OC-12s that have all that stuff aggregated together.
Packet networks are more economical. |
| 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] |
