SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Technology Stocks : Voice-on-the-net (VON), VoIP, Internet (IP) Telephony -- Ignore unavailable to you. Want to Upgrade?


To: Stephen B. Temple who wrote (2110)12/15/1998 9:11:00 AM
From: Stephen B. Temple  Respond to of 3178
 
I love all this stuff, but give me a standard. MGCP? SALIX Technologies Launches New Era In Voice Communications With First "Class Independent" Telephony Switch Architecture

December 15, 1998

GAITHERSBURG, Md.--(BUSINESS WIRE)

The SALIX Enhanced Telephony Xchange
(ETX) Architecture

Offers Service Providers High-Quality
Telephony

Capabilities and Multi-Service VPN Expansion
Based on

Innovative Unified Switch Fabric

SALIX Technologies, Inc. today introduced
the SALIX Enhanced Telephony Xchange
(ETX) Architecture and ETX "Class
Independent" telephony switches, the first
true carrier- class switches to integrate all of
the service functions of voice and data
networks into a single device. The SALIX
Enhanced Telephony Xchange Architecture
describes a new class of high-speed,
high-performance service- layer device that
will enable seamless connections both to and
between the Public Switched Telephone
Network (PSTN) and the Packet Data
Network (PDN) at a cost previously
unachievable.

Class Independent switching means that the
service offered is no longer tied to the
location of a switch in the network, thereby
making it easier to provide new services.
Further, the SALIX Enhanced Telephony
Xchange is designed to surround the core of
a service provider's network - whether it is
based on the Internet Protocol (IP), Time
Division Multiplexing (TDM), or Asynchronous
Transfer Mode (ATM). These features and
capabilities mean that the SALIX Enhanced
Telephony Xchange Architecture will ease as
well as speed a service provider's ability to
deploy next-generation enhanced telephony
services. These same capabilities will also
facilitate the deployment of Virtual Private
Networks (VPNs), all from a single switch.

"Future networks will consist of a core, an
access layer, and the critical service layer
that actually supports customer use of the
network. This is the first architecture that
recognizes that new structure and lets
service providers exploit it to bring new
services to the market. We believe that it
represents an entirely new way of building
multi-service networks and offering voice
services," said Daniel S. Simpkins, founder,
president and CEO of SALIX Technologies,
Inc. "Further, it provides all this at price
points not attainable by even limited-purpose
voice gateways and similar products. "

"As we deploy our new network, we require
scalable media gateways that combine voice
over IP, circuit grooming and packet
switching capabilities, and also support the
emerging Media Gateway Control Protocol.
These gateways will allow us to provide our
customers high-quality, carrier class
telephony services over our IP-based
network at attractive price points," stated
Isaac Elliott, senior director of voice network
engineering for Level 3 Communications, the
Denver-based carrier.

The first product in the SALIX Enhanced
Telephony Xchange Family, the SALIX
ETX5000, was also announced today and will
be demonstrated in SALIX's Booth # 1751 at
ComNet in Washington D.C. January 26
through January 29, 1999. (Please see
related release.) This product is focused on
the special needs of service providers as
they deploy their IP-based networks, and
incorporates all of the flexibility for future
services embodied in the Enhanced
Telephony Xchange Architecture.

"The SALIX Enhanced Telephony Xchange
Architecture is a major step forward within
the telephony communications marketplace,"
stated Frank Dzubeck, Principal Analyst,
Communications Network Architects. "Its
ability to provide for "Class Independence"
will directly assist service providers in their
quest to develop next generation, lower
cost, customer oriented services-based
infrastructures."

The Enhanced Telephony Xchange
Architecture

The flexibility of the Enhanced Telephony
Xchange Architecture is based on two
innovations. The first is a media-independent
switching architecture that can dynamically
route data and voice services in their native
form to create customized service offerings.
Second is a completely new "service bus "
that allows the servers and directories, that
are used to facilitate communications, to be
linked to customers and networks in a
completely flexible way, via the industry's
first Service Provisioning Interface (SPI).

Extending this flexibility to information
handling, the SALIX Enhanced Telephony
Xchange family of devices is based on the
innovative " FleXchange(" hardware
architecture. With the SALIX FleXchange(
Unified Switch Fabric, SALIX is introducing
the first switch architecture that seamlessly
integrates support for TDM, packet/IP
networking, and ATM cell handling without
the overhead and cost of multiple switch
busses or fabrics. This SALIX technology will
uniquely enable the SALIX Enhanced
Telephony Xchange Family to allow service
providers to offer customers high-quality
voice, fax and VPN services over circuit and
packet-switched networks as well as
cell-based networks.

The FleXchange(TM) Unified Switch Fabric
was designed specifically for telephony
services whether they require packet or
circuit switching. Traditionally, these
services have been supported by means of a
series of service-specific gateways, or by
vendor-proprietary features incorporated in
core IP or ATM devices. In contrast, the
SALIX Enhanced Telephony Xchange
Architecture facilitates the delivery of
toll-quality voice and fax, true carrier-class
performance and scalability, single-stage
dialing and intelligent processing capabilities
for enhanced service offerings like VPNs.

The service bus concept is based on existing
and developing standards such as the
Internet Protocol Device Control (IPDC),
Simple Gateway Control Protocol (SGCP) and
Media Gateway Control Protocol (MGCP),
pioneered by Level 3 and Bellcore, and on
the SS7 protocol used within the PSTN.
Through these protocols, communications
services like policy-based call routing,
address translation, and special calling
features, are linked to the SALIX ETX
products, and through it to network
subscribers. Feature management software in
the SALIX management system allows any
combination of service features to be
directed to any port, eliminating the rigidity
of the traditional Class 4/5 hierarchy of
public telephony switching, and making the
family truly " Class Independent" switching.
The Enhanced Telephony Xchange
Architecture supports these protocols to
ensure that service providers using SALIX
products will be able to offer their customers
innovative new telephony services.

Class Independent Switching also enables
the Enhanced Telephony Xchange family to
function in traditional hierarchical switching
applications. For example, for IP-based
carriers, the ETX5000 can function as a
Class 4 switch. This means that it will
perform the toll/tandem switching functions
needed to interconnect IP networks with
local exchange telephone clients, acting as a
distributed Class 4 switch. At the same time,
however, the ETX5000 can support the
incremental addition of new advanced
service features that are not traditionally
associated with Class 4 switches, such as
call redirection on busy, voice mail, etc.,
features normally associated with Class 5
switches. The Enhanced Telephony Xchange
Architecture permits any telephone switch
feature to be distributed to any ETX5000
interface on demand, opening a new source
of IP carrier revenues.

A New Architecture For a New Network Era

As the first Class Independent telephony
switches, the SALIX Enhanced Telephony
Xchange family will be critical to service
providers that seek to offer enhanced IP
telephony services, including voice, fax and
VPNs. In contrast with today's IP telephony
gateways, the SALIX ETX family integrates
high-speed circuit and packet switching into
a single, cost-effective enhanced telephony
tandem platform. For the first time, service
providers will be able to build a truly
carrier-class IP-based central office and
provide enhanced telephony services to the
more than one billion telephone users who
represent $1 trillion in revenue. Never before
has a telephony platform been built that
offers both advanced voice services and
data VPNs.

"We believe this product and architecture
redefine the way that service providers will
look at building infrastructure," said Simpkins.
"We designed the architecture specifically to
deliver the carrier-class performance and
scalability that will enable service providers
to deploy VPN and telephony services,
including voice, with the highest levels of
quality and reliability and exceptional
price/performance."



To: Stephen B. Temple who wrote (2110)12/15/1998 9:17:00 AM
From: Stephen B. Temple  Respond to of 3178
 
Qwest throws down pricing gauntlet

December 15, 1998

Network World:
Arlington, Va.

For a year now, upstart carrier Qwest
Communications has seemed the epitome of
hype - an IP renegade with apparently little
more to offer users than a
consumer-oriented voice-over-IP service in a
handful of cities.

That's all about to change.

Qwest revealed to Network World last week
a new line of enterprise services in the basic
categories favored by the Big 3 carriers:
frame relay, ATM, private lines and Internet
access.

But Qwest will offer some major twists: pure
usage-based billing, voice carriage over
packet networks, souped-up service-level
agreements (SLA) and - true to CEO Joe
Nacchio's word - much lower prices.

Qwest's account representatives have
marched into the field with eye-popping
data-service deals. The company told
Network World that it is offering T-1 frame
relay at nearly $1,100 per month less than
AT&T. Qwest says it will offer T-3 ATM ports
at about one-fourth of AT&T's price (see
graphic, page 1).

To complete users' networks, Qwest can
offer standard frame relay and ATM
permanent virtual circuits (PVC). But the
company's account representatives are
pushing an alternative: switched virtual
circuits (SVC).

These circuits, which larger carriers have for
the most part avoided, eliminate the need to
preprovision paths between network nodes.
And SVCs make it possible for any corporate
site to send data or voice traffic to any
other site without prepaying a monthly fixed
circuit charge.

For SVCs, Qwest will charge simply for the
amount of traffic sent, ranging from less than
1 cent to 4 cents per megabyte across a full
spectrum of eight quality-of-service classes
of frame relay and ATM service (see graphic,
page 65).

Despite the pricing advantage, users,
analysts and Qwest officials agree the carrier
faces an uphill battle to dislodge AT&T, MCI
WorldCom and Sprint from enterprise
accounts with long-term contracts.

"The costs are really, dramatically low," says
Jim Mercer, IT director at Gerald Metals, a
commodities trading and distribution company
based in Stamford, Conn. "But I wouldn't
jump on it right away. I'd have to do a pilot."

"The dollar amount will really pique people's
interest," adds Tom Walton, president of
Walton and Walton Associates, a network
consultant and integrator based in Richmond,
Va. "But I don't think anybody is going to
just fall over, even if they brought it in for
half the price or one-third the price."

If price won't swing it, maybe expertise will.
Qwest has been raiding talent from Sprint
and MCI WorldCom's large base of network
engineers, especially in the Washington, D.C.
area near Qwest's data-services network
operations center (NOC). Qwest will be
heavily promoting the experience of these
engineers.

IP to hype, frame to sell

From the beginning, Qwest has marketed
itself as a next-generation IP carrier and has
crowed about its massive 18,449-route-mile
SONET network, which is capable of carrying
aggregate traffic at 2.5G bit/sec OC-48
speeds now, and will be capable of 10G
bit/sec OC-192 speeds in the future.

But that image has masked the fact that
from a switching standpoint, Qwest really
has two domestic networks - one based on
IP routing and one based on frame and ATM
switching. And it's the second nonpure IP
network that Qwest is currently using to
deliver enterprise services.

The Qwest frame/ATM network consists of
28 switching locations, each equipped with
Ascend 500 ATM and Ascend 9000 frame
relay switches, managed by Qwest
technicians at NOCs here and in Dublin, Ohio.

By contrast, the IP network, consisting of 17
locations that are being outfitted with
Cisco's GSR 12000 super-fast routing
switches, is still a work in progress. Qwest is
currently selling dedicated Internet access
but does not plan dial-up access or an IP
virtual private network (VPN) service until
sometime next year.

Because of the dual frame relay/ATM
capability, users can choose frame relay for
some sites and ATM for others and still
maintain a single WAN, says Mack Greene,
Qwest's director of product marketing for
frame relay, ATM and private lines. From the
start, the network supports not only the five
standard ATM service classes but also three
classes of frame relay.

If a user chooses traditional frame relay
PVCs, each PVC is assigned one of three
classes of service. The premium type, called
Variable Frame Rate (VFR) real time, takes
priority over others in case of congestion,
and is designed for applications such as SNA.
The second type, Variable Frame Rate
non-real time, takes ordinary priority and is
designed for LAN interconnection. The final
type, Unspecified Frame Rate (UFR), is more
of a best-effort circuit for lower priority
applications.

PVC prices will vary accordingly. For every 8K
bit/sec of committed information rate -
guaranteed bandwidth that can't be
squeezed if the network gets congested -
users will pay $8 per month for VFR real time,
$6 for VFR non-real time and $4 for UFR.

The five standard types of ATM PVCs -
ranging from a private-line emulation circuit
known as constant bit rate (CBR) down to a
best-effort circuit known as unspecified bit
rate (UBR) - will also vary in price. CBR will
cost $4.50 per month per 8K bit/sec of
reserved bandwidth, while UBR will cost only
50 cents per 8K bit/sec.

Mixed blessings

But for users who are willing to choose SVCs,
the prices are strictly usage-based. That can
be a mixed blessing, according to some
analysts.

"I have my doubts about the usefulness of
either SVCs or usage-based billing," says
Johna Johnson, vice president for global
networking strategies at META Group, a
consultancy in Stamford, Conn. "The nice
thing about frame relay is that you know
exactly what you're going to pay month by
month."

Qwest officials acknowledge that the
usage-based billing could make some users
nervous. "They're concerned about the cash
register being open until the end of the
month," Qwest's Greene says.

To sweeten the pot, Qwest sales
representatives have been given a special
promotion to wave in users' faces. For
customers who agree to try frame relay
SVCs, Qwest will provide the first 100G bytes
of traffic free for each of the first three
months of a service term. Those who pick
ATM SVCs will get 1,000G bytes free for
each of the first three months.

Several customers pointed out that because
most companies would try any service before
installing it, the promotion may mean that
the entire first three months' usage is free
except for port charges.

And part of the idea behind the promotion is
to give users a chance to see their usage
patterns risk-free for a few months so
they're not hit with sticker shock later,
Greene says.

Big advantage

Users who employ SVCs to get the free
traffic may see another big advantage. Often
the only traffic traveling between branch
offices is voice, while data travels exclusively
from branch to data center. That's not
usually enough of a justification to install
PVCs between branches and pay the fixed
monthly fee.

So users can employ Qwest's SVCs for
intracompany voice calls among branch
offices without having to prepay for a
branch-to-branch PVC that might not be
used for anything else. And because Qwest
charges by the megabyte, Greene claims
that with 8K bit/ sec compressed voice on
Qwest's ATM service, employees can talk for
17 minutes for less than 1 cent.

For conservative users, Qwest has a
traditional VPN circuit-switched voice
service, which carries a traditional
per-minute toll charge. But the company will
let users decide whether to pay regular tolls
or eliminate them by placing phone calls over
the data network. Some users find that
enticing.

"I think that's a better approach," says Jeff
Hafer, manager of telecom engineering for
GPU Energy, a power company based in
Reading, Pa. "The tendency is that when a
vendor is pushing you in a certain direction it
has nothing else to offer." With Qwest "you
feel more like there's nothing hidden behind
the curtain," Hafer adds.

Supplementing the frame and ATM offers will
be an SLA that offers data-throughput
guarantees that vary by class of service
(see graphic, this page).

But some prospective operational issues may
trip up Qwest's efforts.

One Atlanta-area AT&T user says he's
concerned that if he puts voice on Qwest
frame relay or ATM SVCs, he will have
difficulty figuring out how to charge the
expenses back to departments. "I can't
imagine what my tables would look like to
charge back to my users," he says. "Part of
what we've worked for with AT&T is
simplification in pricing. Qwest's
class-of-service and usage-based pricing
doesn't do that."

Catching up

Qwest is also starting out behind the Big 3
carriers in other areas. For example, Qwest
does not yet have any of its own
managed-router or managed frame relay
access device programs, in which the carrier
takes responsibility for configuring and
maintaining the user's WAN equipment.

One way Qwest hopes to catch up to the Big
3 in managed services and certain
performance-monitoring activities is with an
aggressive hiring program that so far has hit
the big carriers where they live.

Sprint has proven a particularly fertile
hunting ground for Qwest headhunters. It all
started last year when Qwest hired Paul
Nemirovsky as vice president of data
services, after he had spent 15 years at
Sprint and its affiliates, most recently the
international alliance Global One. Since then,
Nemirovsky estimates that 50 to 70
employees or full-time contractors have
come over to Qwest from Sprint and Global
One.

Why? At Qwest "there's more appreciation of
their technical skills and less of the red
tape," Nemirovsky says. "There's more
freedom to do what people enjoy, and see
the results of their work."