| Press Release *****For immediate use October 1, 2001 VoicePump and NEC Offer Reference Design for Toll-Quality, Low-Cost VoDSL, VoIP SolutionsTOKYO, DUSSELDORF, Germany and SANTA CLARA, Calif., October 1, 2001 NEC Corporation (NASDAQ: NIPNY) (FTSE: 6701q.l) (Toronto: 6701) with its semiconductor subsidiaries in the United States and Europe, NEC Electronics Inc. and NEC Electronics (Europe) GmbH., and VoicePump, Inc., a DSP Group (NASDAQ: DSPG) subsidiary, have added Voice over Internet Protocol (VoIP) functionality to the turnkey reference design for Integrated Access Devices (IADs) supporting Voice over Digital Subscriber Line (VoDSL) and now VoIP applications. The VoDSL501 reference design enables customers to quickly bring to market devices such as DSL bridging and routing modems and broadband IADs for multi-tenant offices, apartment buildings and residential areas. The reference design combines a powerful NEC network controller and software with VoicePump's integrated Digital Signal Processing (DSP) hardware and software and mixed-signal technologies for an integrated, versatile and cost-effective IAD solution. "VoicePump's VP140 DSP was specifically designed to meet the needs of VoDSL and VoIP applications by integrating virtually all VoDSL-specific hardware and software components on a single chip,'' said Cole Erskine, chief technical officer at VoicePump. The VoDSL501 reference design is optimized for use in VoDSL and VoIP applications. By integrating VoicePump's complete voice-band solution for VoDSL functionality into the reference design -including multiple voice channels and codec support customers can realize substantial savings in development time and cost. "The tremendous demand for bundling voice services with broadband access to homes and small businesses has increased the pressure on our customers to create next-generation integrated access devices and residential gateway platforms," said Kyuichi Hareyama, general manager of NEC Corporation, 2nd System LSI Division. "VoicePump's application-oriented solution combined with NEC's network controller provides an efficient, highly integrated and cost-effective method for enabling system designers to bring their VoDSL and VoIP applications to market quickly." The VoDSL501 uses VoicePump's VP140 DSP for voice processing, NEC's mPD98501 network controller for system control and protocol handling, and a DSL physical layer interface. The NEC mPD98501 network controller features NEC's high-performance 64-bit 100 MHz MIPSRISC VR4120Amicroprocessor core. The controller also has an asynchronous transfer mode (ATM) cell processor, a communications-device-class universal serial bus (USB) controller, and two 10/100 Mbps Ethernet controllers. In addition, the mPD98501 supports the ATM adaptation layer 2 (AAL2) standard for multiple channels of packetized voice in parallel with broadband Internet data access. The NEC/VoicePump VoDSL501 reference design is particularly well suited for implementing the recently ratified Annex A to DSL Forum specification TR-039. This is also known as the standard for Broadband Loop Emulation Services (BLES), and is the primary means of deploying VoDSL networks today. The VP140, with its speech codecs, permits up to four channels of real-time G.723.1/A 6.4 kbps Multi-Pulse Maximum Likelihood Quantization and 5.3 kbps Algebraic Codebook-Excited Linear Prediction (ACELP). Four channels of the ITU-T G.729A/B standard for 8 kbps Conjugate Structure-ACELP are also supported, as well as any combination of any speech codec on any channel, each with fully compliant ITU-T G.168 echo cancellation (32 milliseconds). The VP140 integrates DSP Group's TeakLiteprogrammable DSP core with all requisite peripherals to execute four packet-voice channels on a single processor. The highly integrated DSP includes program/data memory, a host processor interface, an analog front end, and analog-to-digital and digital-to-analog converters. The VP140 family also integrates the necessary DSP firmware to perform all the vital DSP functions, including speech compression and decompression, echo cancellation and associated telephony signaling functions. The VoDSL501 reference design comes packaged with all the necessary hardware and software. Pricing and Availability About NEC Corporation About NEC Electronics Inc. NEC Electronics (Europe) GmbH About DSP Group *** NEC Electronics Inc. is either a registered trademark or trademark of NEC Corporation in the United States and/or other countries. All other registered trademarks or trademarks are property of their respective owners. TeakLite is a trademark of DSP Group. Press Contacts: |
