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V.29 Fax Software

VOCAL’s V.29 fax software  is available as a real-time implementation with support for multi-channel applications. The V.29 soft modem libraries are modular and can be executed by developers as a single task under a variety of operating systems or standalone with its own microkernel. Contact us to discuss your V.29 fax software application requirements.

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VOCAL’s V.29 fax software is optimized for conventional processors and DSPs from TI, ADI, AMD, Intel and other vendors. Our V.29 soft modem is available standalone, as part of an embedded library, or as a complete design . Custom designs are also available.

V.29 Soft Modem

VOCAL’s V.29 fax software implements ITU-T V.29 which defines the modulation methods and operating sequences for a 9600 bps modem used primarily for use on point-to-point 4-wire leased telephony circuits. Data transmission is at 9.6 kbps, with fallback rates of 7.2 kbps and 4.8 kbps, with symbol rate of 2400 symbols per second. V.29 may operate in either full duplex or half-duplex mode.

All of the V.29 facsimile modulations and data streams can be controlled with VOCAL’s T.30 library or with VOCAL’s facsimile service Class 1 Command Set(EIA-578 and T.31). The T.30 library could in turn be controlled by VOCAL’s facsimile service Class 2 Command Sets T.32 (Fax Class 2.1), EIA-592 (Fax Class 2.0), or industry standard (Fax Class 2). With Fax Class 1, most of the protocol is executed in software, with the advantage that any changes don’t require hardware modifications. This is in contrast to Class 2, where image processing is handled by the modem.

The line interface for V.29  may be an analog front end (codec and DAA) or a digital interface such as T1/E1, Switched 56, and ISDN. The upper end of the V.29 fax software offers a direct binary and HDLC interface.

Features

  • Fully compliant with ITU V.29 recommendations
  • Modular software suite available with controller code
  • Optimized for high performance on leading edge DSP architectures
  • Multi-tasking environment compatible
  • Multichannel implementation

Configurations

  • DAA interface using linear codec at 7.2 kHz, 8.0 kHz or 16.0 kHz sample rate
  • Direct interface to 8.0 kHz PCM data stream (A-law or μ-law)
  • North American and International Dialing/Telephony dialing functions available
  • DTMF detection during voice modes available
  • Facsimile protocol layer (T.30 with ECM/BFT) available
  • Facsimile service class 1 command sets (T.31 and EIA-578) available
  • Facsimile service class 2 command sets (T.32, EIA-592 and industry standard fax class 2) available.
  • System can be combined with V.34fax facsimile modulations and startup procedures (V.8 and V.8bis).

Platforms

supported-platforms

VOCAL’s Fax software is available for the following platforms:

  • Texas Instruments - C6000 (TMS320C62x, TMS320C64x, TMS320C645x, TMS320C67x), C5000 (TMS320C54x, TMS320C55x), OMAP3 (OMAP35x, OMAP36x), OMAP4 (OMAP44x), Sitara (AM37x)
  • Analog Devices – Blackfin, TigerSHARC, SHARC
  • ARM – ARM7, ARM9, ARM9E, ARM10E, ARM11, StrongARM, ARM Cortex-A8
  • AMCC – PowerPC
  • MIPS – MIPS32, MIPS64, MIPS4Kc
  • AMD x86
  • Intel

Please contact us for specific V.29 Fax supported platforms.

Operating Systems

VOCAL’s V.29 Fax software is available for the following Operating Systems:

  • Google Android
  • Apple iOS / iPhone / iPad & MacOS
  • Unix,  Linux, μClinux, BSD
  • Microsoft Windows ACM / RTC / CE / Mobile
  • Symbian
  • eCOS / eCOSPro
  • Wind River VxWorks
  • Green Hills Integrity
  • VOCAL LANsEND
  • Micrium μCOS

Please contact us for other supported Operating Systems.

VOCAL Technologies, Ltd.
520 Lee Entrance, Suite 202
Amherst, New York 14228
Phone: +1-716-688-4675
Fax: +1-716-639-0713