Legerity Voice over Broadband Technology Experts Presenting Papers at Communications...

Business Editors & High-Tech Writers

Communications Design Conference 2002

Booth #1104

AUSTIN, TEXAS--(BUSINESS WIRE)--Sept. 23, 2002

Legerity Inc., a leading supplier of integrated circuits for voice over broadband (VoB) and voiceband network access,

Organized by CMP Media LLC and held in San Jose, Sept. 23-26, the Communications Design Conference, www.CommDesignConference.com, is a leading forum for design engineers and technical managers who are designing OEM communications systems that apply wired, optical and wireless communications technologies for personal, home/soho, enterprise and infrastructure applications.

Duncan Ashworth, VP of business integration and VP of engineering at Legerity, will present his paper, "Deriving the Telephone Interface for Voice-over-Broadband Networks," at session P222 on Wednesday, Sept. 25, 1:00 - 2:30 p.m. A 24-year veteran of the semiconductor industry, Ashworth has held positions at MOSTEK and AMD prior to Legerity. He has led the development of a wide range of analog/mixed-signal communication ICs based on both CMOS and high-voltage bipolar process technologies. Ashworth graduated from the University of Texas at Austin with a BSEE, concentrating in solid-state physics. He is the author of numerous papers and articles, such as the EDN article, "Testing the subscriber loop in broadband-telephony applications." www.e-insite.net/ednmag/index.asp?layout=article&articleId=CA92003

Richard Lambert, a senior applications engineer at Legerity, will present his paper, "GR-909 and the Future of POTS Testing in Voice-over-Broadband Networks," at session P322 on Thursday, Sept. 26, 1:00 - 2:30 p.m. Lambert is an expert in implementing communication ICs in voice access systems, including the realization of integrated test capabilities using Legerity's on-chip broadband loop testing features. He received his MSEE from Texas A&M University, with an emphasis in communications, and he holds a BS in physics from the University of Maryland. Among his recent publications are two articles that appeared in Communication Systems Design magazine, "See the Future of Broadband Voice Network Test" http://www.commsdesign.com/story/OEG20020801S0019 and "Fine-Tuning VoBroadband Test Capabilities" http://www.commsdesign.com/story/OEG20020801S0045.

About Paper Session P222: "Equipment Issues for VoX" Moderator: Henry Davis, VP of Intellectual Property, ARC International Presenting Companies: Legerity, Intel, Motorola, Telogy Networks/Texas Instruments

Implementing VoX solutions involves both technical challenges and cost tradeoffs. Sometimes increasing the technology level costs more, sometimes it costs less. This session will focus on an overview of the functional components of both hardware and software, as well as the related standards necessary for Voice over IP devices in a variety of configurations. Segmentation of processing between DSP and RISC processors is one important technical issue that will be considered. Additionally, we will examine the uses of VoP encryption, user authentication and validation at the various layers of the protocol stack and at different nodes of the network.

About Paper Session P322: "Network/PSTN Issues for VoX" Panel Moderator: Henry Davis, VP of Intellectual Property, ARC International Presenting Companies: Legerity, Netergy, AVAZ Networks, Zarlink Semiconductor

VoIP promises tremendous cost and bandwidth savings over traditional POTS transmission, but deployment will only succeed if voice quality (QoS) is not compromised. The broadband delivery method will exist in many forms: cable, DSL, wireless, or fiber. Regardless of the broadband technology, the gateway function must present a standards-compliant telephone interface. Creating this telephone interface within the IAD presents some special challenges. This session considers the customary functions of a traditional interface, mechanized loop testing (MLT) for derived voice lines, best practices for POTS loop testing, the impact of jitter on QoS, and how advanced processors can help solve these problems.

For a first-hand look at Legerity's VoB chipset products, reference designs, and development tools, as well as integrated loop testing technologies, visit the Legerity booth #1104 at the Communications Design Conference.

About Legerity Inc.

Legerity, an analog/mixed-signal IC company focusing on next-generation voice and data networks, develops semiconductor products that enable voice over broadband, packet voice, voiceband network access and integrated voice-data solutions for the new public infrastructure. Legerity is the only fabless semiconductor company that manages its own high-voltage, high-speed bipolar process. Legerity combines its high-voltage and CMOS process technologies, analog and digital circuit design capabilities, more than 600 patents, and extensive systems and field applications expertise to meet the design challenges of enterprise and telecommunication system manufacturers worldwide. Headquartered in Austin, Texas, Legerity has offices throughout North America, Europe and Asia. Visit Legerity on the Web at www.legerity.com.

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