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Technology Stocks : Voice-on-the-net (VON), VoIP, Internet (IP) Telephony -- Ignore unavailable to you. Want to Upgrade?


To: Kenneth E. Phillipps who wrote (1584)10/17/1998 1:46:00 PM
From: Frank A. Coluccio  Read Replies (1) | Respond to of 3178
 
Thanks, Ken... for that NT PR.

Nortel's Passport line of boxes has been an enigma to me for some time. NT has had a way of doing proprietary voice over ATM for a long time, and they have allowed certain Long Haul carriers and resellers to realize vast economies through the use of highly efficient statistical and compression schemes, akin to what can be realized over a VoIP pipe... perhaps not as advantageous volumetrically, but higher quality over the shorter term, until compression schemes and QoS measures are improved for IP.

But because these devices weren't standards-based, and given the ways large carriers eschew such platforms until they do comply to standards, it hadn't really taken off yet.

What puzzles me about this release is their absolute avoidance of the issue of compression, entirely! The fact that the Passport 8780 supports

>>112 T1 circuits per shelf for a total of almost 2,700 DS0 voice channels...<<

... only serves to accentuate this avoidance, since it proves that they are not leveraging current day algorithms, or it at least seems that way from the PR. Curious, indeed, especially since NT and GDC (with their Apex line) have been at the forefront of advancing the cause of Voice over ATM (the VTOA) standards for a long time. Don't know what to say... except that their next upgrade will probably reveal the ATM Forum's ratified versions of VTOA at some point that will allow for the economies I've referred to above.

Regards, Frank Coluccio