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To: Stephen B. Temple who wrote (1815)11/10/1998 7:57:00 AM
From: Stephen B. Temple  Read Replies (3) | Respond to of 3178
 
Cisco Announces Carrier-Class Solution for Enhanced Voice Services in New World

November 10, 1998

SAN JOSE, Calif.--(BUSINESS WIRE)
VCO/4K SwitchBrings Enhanced Voice Services to
AccessPath-VS3

Cisco Systems, Inc. today announced
availability of the VCO/4K open programmable
switch as an option for the Cisco
AccessPath-VS3 (AP-VS3) carrier-class VoIP
platform. The combined AP-VS3 and VCO/4K
solution provides both emerging and
established carriers with an efficient and
cost-effective way to deliver a broad range
of value-added voice services today, as well
as support for mixed-environment networks.
This news comes just days after Cisco
completed its acquisition of Summa Four, the
company that developed the VCO/4K switch.

The AP-VS3 is a fully integrated dial access
system that enables quick deployment of toll
quality voice and fax services over IP
networks. The redundancy and
hot-swappability features of the VCO/4K
enhance the already high availability figures
of the carrier-class AP-VS3.

The open telephony architecture of the
VCO/4K has allowed over 50 industry leading
software developers to create a broad
selection of applications such as pre- and
post-paid calling card, voice/fax messaging,
single-number service, voice-activated
dialing, and web-initiated conferencing. The
variety of available applications makes rapid
deployment of enhanced voice services
possible because carriers are not required to
wait for proprietary solutions developed by
traditional switching vendors.

"The AP-VS3 with VCO/4K switching option
will allow us to extend our offering of
enhanced services, including pre-paid service
and unified messaging to VoIP networks,"
said Kobi Alexander, Chairman, CEO and
President at Comverse Technology, Inc.
(NASDAQ: CMVT). "The higher capacity and
cost savings associated with the VCO/4K will
enable our customers to swiftly respond to
changing market needs and deploy additional
services, on both circuit- and packet-based
telephony networks." Comverse Technology
is a world-leading supplier of enhanced
services platforms to network operators.

As a mixed environment gateway, the
AP-VS3 with programmable switching option
enables Cisco customers to realize cost
savings from least-cost routing between
circuit and packet networks. Incoming calls
to destinations that are not served by the
packet-telephony network can be directly
routed to the PSTN without occupying
valuable DSP resources of the
AccessPath-VS3.

Ofer Gneezy, president and CEO of VIP
Calling said, "As part of the end-to-end Cisco
solution we are deploying in The VIP Calling
Network(TM), the combined AP-VS3 and
VCO/4K solution will enable us to more rapidly
integrate and expand toll-quality packet
telephony services on our network. The
compliance of the VCO/4K and the AP-VS3
with a broad range of international
telecommunications variants is key to the
successful integration of the combined
solution in The VIP Calling Network." VIP
Calling is the leading wholesale provider of
international Internet telephony services.

"Cisco's VOIP solution with integrated
programmable switching allows nimble,
market-oriented players like One.Tel to
compete with larger circuit-switch carriers
because it enables us to deploy new voice
services faster and at a more competitive
price," said Jodee Rich, Joint Managing
Director, One.Tel Limited, an emerging carrier
and new generation telephone company in
Australia.

Key Features of the Access Path VS3 and
the VCO/4K

The Cisco AccessPath-VS3 is the industry's
first fully integrated dial access system that
merges universal VoIP access,
industry-leading switching and high-speed
back-haul routing capabilities into a single,
scalable architecture.

The VCO/4K is a fully redundant platform
that scales from 24 to 4,088 ports,
representing a new standard of density for
open programmable switching platforms. It
offers a broad array of integrated application
creation and management software tools,
and complies with worldwide telco standards.

Availability

The VCO/4K open programmable switch is
available now as an option for the Cisco
AP-VS3 platform.



To: Stephen B. Temple who wrote (1815)11/10/1998 8:14:00 AM
From: Stephen B. Temple  Respond to of 3178
 
OT> Is there hope for digital subscriber line technology?

November 10, 1998

Network World
As a columnist for a technical publication, I
am presented with a surfeit of opportunities
to speak to marketing droids from companies
that claim to have answers to questions I
didn't even know I had. (A disclosure: I do
try to arrange some of the visits for lunch
time so I can at least get a few free meals
out of the encounters.)

From time to time, these meetings actually
result in useful information. One such
meeting took place two weeks ago when Rick
Gilbert , CEO of digital subscriber line (DSL)
equipment vendor Copper Mountain, came
by. (Unfortunately, the only time that
worked was early morning, so no free
lunch.)

I've been hearing horror stories for the past
few years about the problems encountered
when ISPs and other companies attempt to
deploy various types of DSL connections to
their customers. Particular problems have
included difficulty in getting wires from the
phone company that are clean enough to
provide good performance and potentially
severe cross talk that results from having
more than one DSL link in the same cable
bundle running down the street. I've also
heard tell of significant distance limitations.

Of course, the most severe challenge to
DSL's future is that in general it is a
technology empowered by the aggressive,
innovative environment common among
telephone companies. Not!

DSL is seen by these companies as a
technology for providing mixed voice and
data services over the same line. As a result,
the version of DSL they are working on uses
ATM to multiplex the services and is tightly
tied to the voice world. In addition, the same
people in the telephone companies who
brought you ISDN are involved in bringing you
DSL.

Now there's a potentially fatal burden if there
ever was one.

There seem to be dozens of DSL flavors, and
not all of them have the same set of issues.
ISDN DSL (IDSL) and Symmetric DSL (SDSL),
t he types of DSL that Copper Mountain and
others are promoting, use the same
on-the-wire technology (2B1Q) that ISDN
uses.

This means, among other things, that the
cross talk problems that plague some types
of DSL are not a significant issue. The ability
to run at a reasonable speed - 128K bit/sec
over 22,000 feet of wire and faster over
shorter cable runs - means far better
coverage than DSL versions that have
shorter limits.

Over 99% of all customers are within 22,000
feet of a phone central office, and this
percentage drops to less than 50% for
12,000 fe et.

But the thing that seems most promising
about the Copper Mountain approach is that
the company sees this as a data service and
not some mixed-media service. Copper
Mountain is dealing with ISPs, not telephone
companies, and uses frame-based transport
rather than A TM. Frame-based is less
expensive and less complex to deal with than
ATM.

DSL deployment numbers are still small, far
smaller than cable modem deployment
numbers, for example. But developments
such as those taking place at Copper
Mountain and perhaps the DSL-lite
technology under development by Microsoft
and others, may mean that DSL will have a
better future than it has a present.

Disclaimer: Harvard has a long history of
dealing with the future but has no opinion on
DSL technology.

Bradner is a consultant with Harvard
University's University Information Systems.
He can be reached at sob@harvard.edu.

<<Network World -- 11-09-98, p. 41>>

[Copyright 1998, Network World]