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VOCAL Data/Fax Modem Software Available on Analog Devices? 2100 DSP Core

Comprehensive software library for low-cost telephony and multimedia targets rapid system development on the ADSP-2100 Family Architecture

Buffalo, NY July 29, 1996 ... VOCAL Technologies Ltd., a leading supplier of DSP-based communication technologies, announced today that its comprehensive library of data/fax/voice functions, including V.34 Annex 12 (33,600 bps), DSVD and full-duplex speakerphone, are now available for the Analog Devices ADSP-2100 DSP core. OEMs can license the core from Analog Devices, Inc. (ADI) or Mentor Graphics. This software library will allow OEMs embedding the DSP core to produce low-cost communication and multimedia products with a quick time to market.

According to Sandra Perry, marketing manager for the DSP cores at ADI, "We are pleased to have VOCAL Technologies as a third party software developer for our DSP core. VOCAL?s well-tested, modular software should enable our licensees to bring their telephony products quickly to market."

The software available from VOCAL Technologies is a comprehensive library of data, facsimile, and voice functions which implements all of the features listed in the chart below. The modularity of the library code allows the ADSP-2100 core licensees the flexibility to choose the functions needed for their specific application.

According to John Moore, one of VOCAL Technologies' lead software architects, "The combination of Analog Devices? 16-bit fixed-point DSP architecture with VOCAL's comprehensive modem library will be ideal for core licensees designing modems, advanced fax machines, speakerphones, and video conferencing systems."

The Analog Devices ADSP-2100 family DSP core is code compatible with ADI?s standard, general-purpose products, including the ADSP-2171 and ADSP-2181 fixed point DSPs and is well suited to communication and multimedia systems.

Analog Devices Inc. is a leading manufacturer of precision, high-performance integrated circuits used in analog, mixed signal and digital signal processing. Headquartered in Norwood, Massachusetts, the company employs approximately 6,000 people worldwide and has manufacturing facilities in Massachusetts, California, North Carolina, Ireland, Japan, the Philippines and Taiwan.

VOCAL Technologies Ltd., the industry's only one-stop supplier for complete modem source code, provides full service telecommunication and networking solutions to OEMs. The company's communications software enables customers to embed well-tested data, fax, and voice features to their products without investing dozens of man years to design, develop, and test their own software. VOCAL's telephony software is available as individual modules, as a complete suite, or part of a turn-key hardware/software solution customized to meet an OEM's exact requirements.

Please direct any specific product questions about the Analog Device?s DSP core to Sandra Perry, Analog Devices Inc., Norwood, MA [email protected]


VOCAL Technologies, Ltd. Data/Fax/Voice Modem Library

V.34 Annex 12 33600/31200 bps
V.34 28800/26400/24000/21600/19200/16800/14400/12000/9600/7200/4800/2400 bps
V.32bis 14400/12000/9600/7200/4800 bps 
V.32 9600/7200/4800 bps 
V.22bis 2400/1200 bps 
V.22 1200/600 bps 
V.23 1200/600 bps with optional 75 bps backchannel
V.21 300 bps
Bell 212 Similar to V.22
Bell 202 Similar to V.23, also used for Caller ID
Bell 103 Similar to V.21

V.17 14400/12000/9600/7200 bps
V.29 9600/7200/4800 bps
V.27ter 4800/2400 bps
V.21 channel 2 300 bps
V.33 Leased line version of V.17

G.729 Annex A Reduced Complexity 8 kbps CS-ACELP
G.729 8 kbps Conjugate-Structure Algebraic-Code-Excited Linear-Prediction (CS-ACELP)
G.728 16 kbps Low-Delay Code Excited Linear Prediction (LD-CELP)
G.726 40, 32, 24, 16 kbps Adaptive Differential Pulse Code Modulation (ADPCM)
G.722 32 kbps Adaptive Differential Pulse Code Modulation (ADPCM)


·DSVD ·Full Duplex Speakerphone ·V.8bis ·V.8 ·EIA/TIA-2330 Automode ·V.42 (LAPM) ·V.42bis ·MNP 2-4 ·MNP 5 ·MNP 10 Error Control ·V.14, HDLC, FSK baud framing ·Industry Standard AT Command Set ·V.25ter Command Set ·V.25bis Command Set ·Fax Service Class 1 Command Set ·Fax Service Class 2 Command Set (includes T.30) ·Fax Service Class 2.0 Command Set (includes T.30, T.4 and ECM) ·North American and International Call Progress ·DTMF Generation/Detection ·Caller ID ·V.54 Diagnostic Loopbacks ·V.24 Interface