nope different technology you do not even have to have cable service to have
the telephone service the VOIP requires a SIP box that is inside your house
that gives you one POTS line Fax and alarm systems do not work with VOIP
neither do regular modems. they all work fine with the Comcast system.
Caller ID and 911 also work fine. VOIP usually has very low prices for long
distance packages as well as international the Comcast system is comparable
to the regular phone company here

here is a blurb about it, it is called circuit switched?

full article here
http://biz.yahoo.com/prnews/040728/phw003_1.html

As expected, cable phone revenue declined 13.8% from the second quarter of
2003 to $177 million in the second quarter of 2004, reflecting a 10.4%
decrease in subscribers to 1.2 million and a 3.0% decline in average monthly
revenue per subscriber to $47.71. Excluding telephone revenue, which is
expected to decline throughout 2004, total revenue for Comcast Cable in the
second quarter of 2004 increased 11.6%. Telephone results reflect the
Company's focus on profitability, not unit growth, of the acquired
circuit-switched telephone business as it begins to transition to VoIP phone
service.

Wayne


"G. Morgan" wrote in message
...
Someone named "wayne" Proclaimed on Sun, 03 Oct
2004 02:51:23 GMT,

Actually it is "digital" phone service but not VOIP they have a box that
goes from the telephone junction box to the cable box and the signal is
converted there.


Sir, I do believe the "cable box" is essentially a cable modem. And
the signal is digitized and sent over an IP network, using the VoIP
protocol.




-Graham

Remove the 'snails' from my email