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From: mitel!spock!grayt@uunet.uu.net (Tom Gray)
Newsgroups: comp.dcom.telecom
Subject: Re: Data Lines vs. Voice Lines
Message-ID: <12744@accuvax.nwu.edu>
Date: 28 Sep 90 11:54:34 GMT
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Reply-To: Tom Gray <mitel!smithd!grayt@uunet.uu.net>
Organization: Mitel. Kanata (Ontario). Canada.
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X-Telecom-Digest: Volume 10, Issue 690, Message 7 of 10


In article <12664@accuvax.nwu.edu> Ken Abrams <pallas!kabra437@uunet.
uu.net> writes:
>X-Telecom-Digest: Volume 10, Issue 684, Message 3 of 11

>In article <12490@accuvax.nwu.edu> stox@balr.com (Ken Stox) writes:

>>	2) Once digitized at the C.O., the digital data from your
>>phone call is blocked into packets of data which are routed through
>>the phone network.

>quick recap is in order.  While what Mr. Stox says might be true (to
>some degree) sometime in the not too distant future, it is NOT true
>today.  As far as I know, there are no telco owned switches in service
>today that use packet switching for voice.  At the present time, a

The ATT IACS (Integrated Access and Control) system uses compression
to carry voice data. It is a fast packet system using 384kbit chunks
of T1 channels. A whole industry of networking companies is selling
compression equipment for private networks - ATT sells its IACS to
industry to lower their networking costs.