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Technology Stocks : LAST MILE TECHNOLOGIES - Let's Discuss Them Here
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To: MikeM54321 who wrote (1653)7/23/1998 6:04:00 PM
From: DenverTechie  Read Replies (2) of 12823
 
What I am saying is that all current HFC telephony systems offering main line/life line service operate this way - regular circuit switched network with conversion to RF for the last mile to the customer.

But I thought I read that AT&T/TCI had a better idea. They would do IP telephony over the RF. This newer HFC telephony system is being worked on right now at CableLabs (the Bellcore of the cable industry). It is slow going but shows relatively good promise. The problem is that it will be quite some time before the complete system is ready, with reasonable network management, latency issues taken care of, delays removed, etc. It's a take off on the typical IP telephone that is being developed today for computers using dial up networks. Just uses the cable lines instead of the phone lines to deliver the IP telephone packets. But still has all the problems of regular IP telephony along with the complexity of making it work in the RF world.

At least that's what I thought was in the press release. If someone out there has the original press release, could you check what it said against my recollection. I'm pretty sure they mentioned IP voice over the networks. At the time, I thought "pretty tough sell, technically" to myself. Hard to believe AT&T would go for it. My own opinion is that they would start with standard HFC telephony with using Lucent, Newbridge, Tellabs, etc. to get presence in a market, then migrate over to the IP system as it became available and be cheaper to deploy. After all, they already know how to do data on IP to cable modems in RF, so the assumption is provide voice that same way.

That may be the assumption, but the reality is it's a long way from IP data to IP telephony over RF based cable networks.
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