Channelized Voice over DSL Business/Technology Editors ATLANTA--(BUSINESS WIRE)--June 4, 2001--SUPERCOMM 2001-- New Voice over DSL Technology Cost-Effectively Integrates Derived Voice Functionality into DSL Equipment for Residential and Small Office Services Several leaders of the DSL industry announced today that they are cooperating to establish standards for Channelized Voice over DSL (CVoDSL) in order to make standard-compliant, interoperable solutions available to the marketplace more quickly. Supporters of CVoDSL, including ADC, Advanced Fibre Communications (AFC), Analog Devices, Aware, Broadxent, Centillium, Infineon, Mindspeed, Occam Networks, Paradyne, Siemens Carrier Networks LLC, and Texas Instruments, are working together within organizations such as the DSL Forum and ITU (International Telecommunications Union) to complement DSL standards with CVoDSL specifications. CVoDSL technology incorporates derived voice functionality into DSL chipsets, offering equipment manufacturers the ability to cost-effectively integrate Voice over DSL (VoDSL) features into their products. These products provide carriers an economically attractive means to use DSL to offer bundled multi-line voice and high-speed data services to their residential and small office customers. CVoDSL-equipped chipsets are able to reserve a dedicated channel of DSL bandwidth for up to eight simultaneous voice calls over a single phone line. This feature enables DLCs (digital loop carriers) and next-generation DSLAMs (DSL access multiplexers) with derived voice functionality. Some of the processing required by other techniques is also eliminated, making integration of CVoDSL into customer premise modems relatively inexpensive. "Through cooperation between DSL industry peers in the standardization process, we intend to ensure that a standard-compliant, future-proof solution can be made available more quickly from a variety of suppliers," commented David Benini, DSL marketing manager at Aware. "Multi-vendor interoperability and compliance with standards will underscore CVoDSL's value in the marketplace." "The ITU and ETSI have recognized the importance of CVoDSL," said Ron Cates, vice president and general manager for Mindspeed's broadband access business. "In the case of symmetric DSL transmission, they anticipated the need for Channelized voice support and approved an appropriate frame format in their G.shdsl standard." "Service providers are in need of a VoDSL solution that supports their business cases," commented Mehran Musai, vice president of marketing for AFC. "Channelized VoDSL technology offers this by making extensive use of existing next-generation DLC infrastructure and management systems. Standards-based CVoDSL is an optimal solution for emerging applications." "A valuable feature of the Channelized method is that it transports derived voice traffic uniformly over the phone line in the same format as traditional telephony," said Dori Braun, vice president of marketing for Centillium's Access Business Unit. "Centillium is dedicated to providing carriers a means to smoothly introduce derived voice services, as well as an evolution path to next-generation networks." "Channelized VoDSL provides toll-quality voice while reducing CPE [customer premise equipment] cost and simplifying access network architecture as compared to other VoDSL techniques," said Jacques Ruch, broadband product line director for Analog Devices, Inc. "ADI is pleased to support this new option with chipsets and reference designs." "Broadxent, a subsidiary of Creative Technology Ltd., is demonstrating an ADSL IAD [integrated access device] with Channelized voice capability, and is fully committed to support the CVoDSL initiative to achieve an interoperable standard," said Patrick Ang, president and CEO of Broadxent, Inc. More About CVoDSL CVoDSL enables DSL equipment with the capability to deliver voice over DSL services to residential consumers and small businesses. CVoDSL transports voice traffic over the copper loop within the DSL data stream by dedicating DSL bandwidth for each voice channel. Because CVoDSL avoids the use of ATM (asynchronous transfer mode) or IP (Internet protocol) to carry voice, the complexity associated with these protocols is eliminated, while reliable toll-quality voice is ensured. It also delivers voice traffic to the access network as a DS0, just like a regular telephone call. As a result, CVoDSL technology is less expensive and easier to integrate into existing switched networks and management systems, yet versatile enough to simplify evolution to next-generation packet-based networks without replacement of the customer equipment. These features make CVoDSL highly suitable for residential and small office VoDSL services. For symmetric implementations, the G.shdsl frame format allows for arbitrary payload allocation between any number of DS0 time slots and ATM or IP data. It was specifically designed to accommodate business class services with multi-line voice support that still require a significant amount of upstream data transport. A white paper with more information about CVoDSL is available at Aware's website: http://www.aware.com/technology/telecom/cvodsl_download.html CVoDSL at SUPERCOMM Demonstrations and/or additional information are available in the booths of the following companies at the SUPERCOMM 2001 conference and exhibition being held at the Georgia World Congress Center in Atlanta, June 5-7, 2001. ADC Advanced Fibre Communications, Inc. www.adc.com www.afc.com Nasdaq:ADCT Nasdaq:AFCI Booth #3548 Booth #6816 Stephen Moore Chris Heinemann 714-730-2336 707-793-4779 Analog Devices Inc. Aware, Inc. www.analog.com www.aware.com NYSE:ADI Nasdaq:AWRE Booth #2558 Booth #2110 Colleen Cronin David Benini 781-937-1622 781-276-4000 Broadxent, Inc. Centillium Communications Inc. www.broadxent.com www.centillium.com A subsidiary of Creative Nasdaq:CTLM Technology Ltd. Booth #405 Nasdaq:CREAF Laurie Falconer Booth #258D 510-771-3647 Faye Weng 408-719-5151 Infineon Technologies AG Mindspeed Technologies www.infineon.com A Conexant Business NYSE:IFX www.mindspeed.com Booth #7330 Nasdaq:CNXT Mark Pearce Booth #7870 408-501-6391 Carol Thornton 949-483-7413 Occam Networks, Inc. Paradyne Networks, Inc. www.occamnetworks.com www.paradyne.com Booth #8188 Nasdaq:PDYN Daphne Page Booth #3141 805-692-2919 Jennifer Righi 727-530-2529 Siemens Carrier Networks, LLC Texas Instruments Incorporated www.icn.siemens.com www.ti.com/sc/adsl NYSE:SI NYSE:TXN Booth #3816 Booth #7338 Lisa Robinson Marisa Speziale 561-923-6848 214-480-1795 Note to Investors: Portions of this release contain forward-looking statements regarding future events and are subject to risks and uncertainties, such as estimates or projections of future revenue and earnings and the growth of the DSL market. There are factors that could cause actual results to differ materially from the results indicated by such statements. Such factors are described in the 10-K's, quarterly and other filings the companies listed above make with the Securities and Exchange Commission. We refer you to these documents for a more complete description of factors that may affect future results.
DSL Industry Leaders Cooperate to Promote Standardization of