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Paradyne Introduces Standards-Based DMT and G.lite ADSL For the Hotwire GranDSLAM.

Business Editors/Technology Writers

TAMPA, Fla.--(BUSINESS WIRE)--Feb. 23, 2000

-- Paradyne's New 12-Port Multi-Mode ADSL See DSL.

ADSL - Asymmetric Digital Subscriber Line
 Line Card to Deliver

Interoperability with Full-Rate DMT See DSL.  and G.lite ADSL --

Paradyne Networks Inc. (Nasdaq:PDYN) today announced the latest in a series of new Hotwire(R) GranDSLAM line cards - the new 12-port multi-mode ADSL line card, further expanding Hotwire's market-leading service capabilities for both residential and business DSL DSL
 in full Digital Subscriber Line

Broadband digital communications connection that operates over standard copper telephone wires. It requires a DSL modem, which splits transmissions into two frequency bands: the lower frequencies for voice (ordinary
 services. The Hotwire multi-mode ADSL line card is capable of supporting both full-rate DMT and G.lite ADSL services on a port-by-port basis.

The line card has been implemented using the Alcatel DynaMiTe ADSL chipset, which is widely incorporated by CPE (Customer Premises Equipment) Communications equipment that resides on the customer's premises.

CPE - Customer Premises Equipment
 providers for maximum interoperability in both G.lite and full-rate DMT service modes. Paradyne's implementation of the Hotwire ADSL line card, in conjunction with the ATM service attributes of the Hotwire GranDSLAM, provides full ATM Quality of Service (QoS) capabilities. The combination of ATM QoS and mass-market interoperability of DMT and G.lite further expands the industry-leading multiservices portfolio of the Hotwire GranDSLAM.

"Paradyne is committed to giving our customers standards-based interoperable solutions as evidenced by both our multi-mode ADSL line card and the recent introduction of our multiservices ATM SDSL See DSL.

SDSL - Single-line Digital Subscriber Line
 line card," said Frank Wiener, vice president of Broadband Access Solutions at Paradyne. "The Hotwire GranDSLAM delivers the widest range of DSL-based services and transports in a single DSLAM (DSL Access Multiplexor) A central office (CO) device for ADSL service that intermixes voice traffic and DSL traffic onto a customer's DSL line. It also separates incoming phone and data signals and directs them onto the appropriate carrier's network. See DSL.  (DSL Access Multiplexer) architecture, positioning it as the next-generation DSLAM of choice."

Support for both G.lite and full-rate DMT ADSL has become increasingly more important as service providers evolve their strategy to support full-rate as well as G.lite-based services. That fact that full-rate DMT has demonstrated the ability to operate in splitterless mode using microfilters developed for G.lite has neutralized many of the anticipated advantages of G.lite. As a result, many Network Service Providers (NSPs) are embracing multi-mode ADSL over a G.lite-only strategy. Multi-mode will allow them to leverage both the availability of PC integrated G.lite modems in the future and the wide variety of ADSL CPE that has already been deployed using full-rate ADSL. This strategy also gives NSPs the ability to migrate to higher speeds as new applications warrant asymmetric services at rates of up to 8 Mbps.

"Mass-market interoperability is the name of the game with ADSL," said Wiener. "The best way to maximize interoperability and performance in an evolving market is to implement the same chip-set technology for both the CO- based DSLAM equipment and customer premises-based CPE. Even in the highly mature V.90 (56K) dial modem market, our research has shown wide variations in performance across CPE modems and Remote Access Server equipment using chipsets from different manufacturers. Most end users simply assume this service degradation to be a function of a poor phone line connection - they won't be as tolerant when they're paying $49 per month for an ADSL service. Paradyne's real-world insight and our extensive knowledge of core DSL technologies lead us to chose the same multi-mode ADSL chipset that has been most widely deployed by CPE vendors. Over time, ADSL interoperability will become a defacto reality, but for the next 6-12 months, high-performance interoperability with full-rate DMT endpoints will be best served with our Hotwire multi-mode ADSL line card using the same chipset that is widely implemented by CPE vendors."

The revenue-engineered Hotwire GranDSLAM, which began shipping in November 1999, is a next-generation, multiservices DSLAM that incorporates the latest non-blocking ATM switching technology. Capable of supporting the broadest range of DSL transports - multi-mode ADSL (G.DMT and G.lite), MVL MVL Multiple-Valued Logic
MVL Multiple Virtual Line
MVL Montavista Linux
MVL Moshannon Valley League (Pennsylvania high school baseball)
MVL Mercury Vapor Light
MVL Minimum Vector Length
MVL Musikverein Lustenau
(TM) (Multiple Virtual Lines), SDSL, Rate Adaptive DSL, IDSL See DSL. , M/SDSL, and M/HDSL all from a single DSLAM platform, the Hotwire GranDSLAM gives unprecedented efficiency and differentiation opportunities for Network Service Providers deploying DSL-based services.

The Hotwire GranDSLAM supports the broadest range of DSL network service types including IP, ATM, VoDSL (Voice over DSL), FRoDSL (Frame Relay over DSL) and TDM (Time Division Multiplexing) A technology that transmits multiple signals simultaneously over a single transmission path. Each lower-speed signal is time sliced into one high-speed transmission. , and also boasts QoS capabilities with a full suite of service classifications to prioritize traffic including UBR (Unspecified Bit Rate) An asynchronous transfer mode (ATM) level of service that does not guarantee available bandwidth. It is very efficient, but not used for critical data. , CBR (1) (Computer-Based Reference) Reference materials accessible by computer in order to help people do their jobs quicker. For example, this database on disk!

(2) (Constant Bit Rate) A uniform transmission rate.
, nrtVBR and rtVBR.

The new multi-mode ADSL card, which supports all relevant industry standards such as ITU (International Telecommunication Union, Geneva, Switzerland, A telecommunications standards body that is under the auspices of the United Nations. Comprising more than 185 member countries, the ITU sets standards for global telecom networks.  G.992.1, ITU G.992.2 and ANSI (American National Standards Institute, New York, A membership organization founded in 1918 that coordinates the development of U.S. voluntary national standards in both the private and public sectors. It is the U.S. member body to ISO and IEC.  T1.413 Issue 2, will promote interoperability in support of critical-mass deployment of DSL-based services and as such will be part of Paradyne's Hotwire Connected(TM) program for DSL interoperability. Paradyne is also a member of the University of New Hampshire New Hampshire, one of the New England states of the NE United States. It is bordered by Massachusetts (S), Vermont, with the Connecticut R. forming the boundary (W), the Canadian province of Quebec (NW), and Maine and a short strip of the Atlantic Ocean (E).  Test Lab for DSL interoperability testing.

Paradyne will showcase the new ADSL card along with its award-winning ATM SDSL card - both of which provide the underpinning to the Hotwire Connected interoperability initiative - at SuperComm 2000 in Atlanta this June. In January, Paradyne showcased industry-leading endpoints and voice gateways that will interoperate with the Hotwire GranDSLAM at ComNet, where Paradyne's multiservices ATM SDSL line card received the New Product Achievement Award in the Internet/Intranet category for facilitating delivery of today's advanced DSL services such as VoDSL and FRoDSL.


The 12-port ADSL card for the Hotwire GranDSLAM will be available in second quarter of 2000. Up to 17 ADSL line cards are supported in the Hotwire GranDSLAM, providing support for up to 204 lines per DSLAM shelf and more than 600 ADSL lines per rack.


Headquartered in the Tampa Bay area, Paradyne is a leading innovator, developer and manufacturer of high-speed network access solutions over copper wire. The company is recognized as a market leader in DSL (Digital Subscriber Line See DSL.

(communications, protocol) Digital Subscriber Line - (DSL, or Digital Subscriber Loop, xDSL - see below) A family of digital telecommunications protocols designed to allow high speed data communication over the existing copper telephone lines between end-users and
), T1 and Service Level Management products. Paradyne markets its award-winning Hotwire(R) DSL and FrameSaver(R) Service Level Management systems to Network Service Providers (NSPs) and business customers. Paradyne has shipped more than 4,900 Hotwire DSL Access Multiplexers (DSLAMs), for a total capacity of more than 1.3 million lines. Its Hotwire Connected program enables third-party DSL voice gateway and customer premises equipment See CPE.  to interoperate with Paradyne's family of Hotwire products. Paradyne also licenses ETC ETC - ExTendible Compiler. Fortran-like, macro extendible. "ETC - An Extendible Macro-Based Compiler", B.N. Dickman, Proc SJCC 38 (1971). (R) and Tripleplay(TM) technology, and intellectual property incorporated in the V.90 standard.

For more information on Paradyne and its products, call 1-800-PARADYNE (U.S. and Canada), 1-727-530-8623 or visit

"Safe Harbor Safe Harbor

1. A legal provision to reduce or eliminate liability as long as good faith is demonstrated.

2. A form of shark repellent implemented by a target company acquiring a business that is so poorly regulated that the target itself is less attractive.
" Statement under the Private Securities Litigation Reform Act The Private Securities Litigation Reform Act of 1995 (PSLRA) implemented several significant substantive changes affecting certain cases brought under the federal securities laws, including changes related to pleading, discovery, liability, class representation and awards fees and  of 1995: Statements in this press release regarding Paradyne Corporation's business which are not historical facts are "forward-looking statements" that involve risks and uncertainties. For a discussion of such risks and uncertainties, which could cause actual results to differ from those contained in the forward-looking statements, see the company's registration statement dated September 28, 1999. The company assumes no obligation to update the forward-looking information contained in this press release.

Editors Note: Visit Paradyne's virtual pressroom at for product images and/or additional information. Product availability and pricing subject to change without notification. Hotwire Connected, MVL, NextEDGE, OpenLane, Smart Room, Tripleplay and TruePut are trademarks of Paradyne Corporation. ACCULINK, COMSPHERE, ETC, Hotwire, FrameSaver, Paradyne, the Paradyne logo and Performance Wizard are registered trademarks of Paradyne Corporation. All other service marks and trademarks are the property of their respective owners.
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Date:Feb 23, 2000
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