Investor Overview

Press Release

View printer-friendly version << Back
DSP Group's Voicepump Subsidiary Announces Low-Cost Solutions for VoIP Applications

VP110 and VP120 provide low-density VoIP designs with cost- and power-optimized solutions

SANTA CLARA, Calif., Aug. 7, 2001 — VoicePump, Inc., a subsidiary of DSP Group, Inc., (NASDAQ: DSPG), today announced low-cost integrated silicon/software solutions for voice-over-broadband customer premises equipment (CPE).

VoicePump has expanded its VP100 series of voiceband-processing engines for low-density Voice over Internet Protocol (VoIP) gateways and Voice over Digital Subscriber Line (VoDSL) Integrated Access Devices (IADs) in residences as well as small and medium enterprises. The VP110 and VP120 are optimized for one- and two-port applications, respectively, and are pin-to-pin compatible with VoicePump's four-port VP140, which debuted last fall.

"VoicePump's VP100 family provides IAD and low-density gateway designers with the price and performance points that better address the needs for most CPE applications, from one to four ports," said Will Strauss, president of Forward Concepts, an independent digital signal processor (DSP) industry analyst firm. "By integrating their field-proven DSP software, VoicePump has greatly reduced time-to-market for their OEM customers."

VoicePump's VP100 family devices integrate DSP Group's TeakLite™ programmable DSP core with sigma-delta analog-to-digital (A-D) and digital-to-analog (D-A) converters -- thereby saving space in the design and lowering overall system cost. A variety of speech coding and telephony applications are configurable on a per-channel basis via the VP100 family's flexible host-processor interface protocol. What's more, the chip's host port is compatible with all the popular packet-based host processors, including PowerPC, ARM and MIPS. VoicePump's corresponding source code and reference designs facilitate the ability of engineers to incorporate VP100 chips into their proprietary designs.

Serome Technology Inc., the Korean telecom equipment and software company behind the DialPad web-to-phone service, recently selected the VP110 for a VoIP phone application and the VP120 for a two-port VoIP gateway application. Hoon Chang, Ph.D., director of the R&D Center at Serome, stated that "The different channel densities of the VP100 family members allow us to select the optimal device for a particular application. With VoicePump chips, we are only paying for the silicon required to do the job, and not more."

About VP100 Family DSP Software

The same comprehensive suite of DSP software exists for all versions of the VP100 family of mixed-signal DSPs. A wide range of speech-coding algorithms standardized by the International Telecommunications Union (ITU) are available, such as G.729A/B 8kbps CS-ACELP speech compression with voice activity detection and comfort noise generation. (DSP Group was a key contributor to the development of the G.723.1 compression algorithm, a mandatory component of all VoIP systems.) Other speech coding standards supported by the VP100 family include G.728 low-delay CELP (Code Excited Linear Prediction) and G.726 ADPCM (Adaptive Differential Pulse Code Modulation). In addition, the on-chip sigma-delta A-D and D-A converters of the VP100 family permit support of ITU speech codecs for wideband (7kHz) audio, such as G.722 and G.722.1.

In addition to speech coding, the VP100 family software includes field-proven DSP software for G.168 echo cancellation that supports echo path "tail" lengths up to 64 milliseconds. A wide variety of tone-detection algorithms are included, as well as caller ID, conference bridging, and an adaptive jitter buffer suitable for any packet-voice application. All of these algorithms have been integrated to run together seamlessly in a multi-channel environment under VoicePump's operating kernel, which has been optimized for low-latency voiceband applications.

"With the included DSP software, our VP100 family of mixed-signal DSPs make it easy for our OEM customers, such as DSL router manufacturers, to voice-enable their products," said Cole Erskine, chief technical officer of VoicePump. "The family will be expanded in the future to include higher-density, lower-power offerings."

Price and Availability

Samples and limited production quantities of all VP100 family devices are available now—in 128-pin plastic, quad-flat packages—directly from VoicePump or from its representatives.

In volumes of 10,000, pricing for the VP110 starts at $11 and the VP120 at $16. For more information, customers may contact the VoicePump sales department by telephone at (408) 986-4320 or by email at

About VoicePump

VoicePump, Inc. develops integrated silicon solutions for VoIP, VoDSL and other voice-over-packet applications that incorporate DSP Group's DSP cores and mixed-signal technology. VoicePump's products embed optimized, field-proven speech coding and telecom algorithms developed during its seven years as a DSP software company. VoicePump was founded in 1993 and became a wholly owned subsidiary of DSP Group, Inc. in 2001. The company is headquartered in Santa Clara, Calif. and has offices in Schaumburg, Ill. and Israel. More information -- and a list of regional sales representatives -- is available on the Web at

About DSP Group

DSP Group, Inc., is a global leader in the development and marketing of high-performance, cost-effective, licensable DSP cores. The company's family of DSP cores provides ideal solutions for low-power, cost-effective applications such as cellular, broadband communications, VoIP, multimedia, advanced telecommunications systems, disk-drive controllers, and many other controller applications. By combining its DSP core technologies with its proprietary, advanced speech-processing algorithms, DSP Group also delivers a wide range of enabling, application-specific integrated circuits for full-featured, integrated-telephony products and applications, including 900 megahertz and 2.4 gigahertz wireless technologies. DSP Group maintains an international presence with offices located around the globe. More information about DSP Group is available from its Web site at

TeakLite is a trademark of DSP Group. All other product names are trademarks or registered trademarks of their respective owners.

DSP Group / VoicePump Safe Harbor Statement

Statements contained in this release concerning the visibility and future growth of DSP Group's business and the introduction, timing of releases and success of the products mentioned herein may constitute forward-looking statements. These statements involve certain risks and uncertainties such as acceptance of DSP Group's and VoicePump's new products by existing OEM customers and potential customers, DSP Group's ability to integrate the operations of VoicePump, and VoicePump's ability to develop and produce its new products at competitive costs. All forward-looking statements are made pursuant to the Safe-Harbor provisions of the Private Securities Litigation Reform Act of 1995. These factors and other factors which may effect future operating results or our stock price are discussed under "RISK FACTORS" in our report on form 10-Q for the quarter ended March 31, 2001, which has been filed with the Securities and Exchange Commission and is also available on our Web site ( under Investor Relations.

John Perry
(408) 986-4470

Lisa Figlioli
Technology Ink
(203) 625-0082