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RoIP Gateway

Radio over IP Gateways

VOCAL’s RoIP Gateway enables interoperation of different radio systems over IP networks

VOCAL’s RoIP Gateway provides a complete communications solution for interconnecting different radio systems over IP networks. Our gateway design provides cost effective links between radio networks in remote areas where long distances, difficult terrain or other conditions make continuous line of sight communications cost prohibitive. Contact us to discuss your radio over IP application.

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VOCAL’s RoIP software is optimized for performance on ANSI C and leading DSP architectures from TI, ADI, ARM, Intel and other vendors. Our RoIP Gateway Reference Design may be licensed as a complete turn key system with custom solutions available to meet your specific requirements.


  • Turn key RoIP Gateway hardware and software solution
  • Supports full duplex and half duplex modes of operation
  • Supports PTT and other radio control signaling
  • MELPe, G.711, G.729AB and other standard voice codecs available
  • Robust echo canceller and noise reduction software available
  • Network stack with adaptive jitter control available
  • SRTP for secure communications available
  • Custom design solutions available


  • Interoperate Industrial, Commercial, Medical and Mobile Radio Networks
  • Home Land Security
  • Public Safety / First Responders

RoIP Gateway Reference Design

VOCAL’s RoIP Gateway reference design enables rapid development of networked RF applications using IP protocols. Our RoIP solution is compatible with various radio standards and supports both full-duplex and half-duplex RF. The RoIP gateway radio controller interfaces with the local radio unit to transmit and receive RF signals on the local radio network. The radio controller supports full and half-duplex radio communications as well as PTT and other radio controls. The media processor sends and receives digital radio packets over an IP network.

RoIP Gateway Reference Design

VOCAL’s RoIP Gateway supports full and half-duplex RF communications using radio over IP networks

VOCAL’s RoIP software provides application developers a highly configurable framework with a network stack, jitter control, RTP, and other networking protocols. In addition, our software provides a wide range of voice compression algorithms including MELPe, G.711, G.722, Speex, etc. as well as robust echo cancellation and noise reduction algorithms. When combined with SRTP, SDES, IPsec and encryption, VOCAL’s comprehensive RoIP software can ensure secure communications with superior voice quality in the most challenging of environments.

Reference Design Kit

VOCAL’s RoIP Gateway RDK consists of a customizable, fully-functional hardware and software solution including:

  • Schematics
  • BOM
  • Complete custom firmware
  • Technical engineering assistance with layout design and hardware bringup
  • Lifetime product maintenance and support


supported platforms

VOCAL’s optimized software is available for the following platforms. Please contact us for specific RoIP gateway supported platforms.

Processors Operating Systems
  • Texas Instruments – C6000 (TMS320C62x, TMS320C64x, TMS320C645x, TMS320C66x, TMS320C67x), DaVinci, OMAP, C5000 (TMS320C54x, TMS320C55x)
  • Analog Devices – Blackfin, ADSP-21xx, TigerSHARC, SHARC
  • PowerPC
  • MIPS – MIPS32, MIPS64, MIPS4Kc
  • ARM – ARM7, ARM9, ARM9E, ARM10E, ARM11, StrongARM, ARM Cortex-A8, Cortex-M1
  • Intel / AMD – x86, x64 (both 32 and 64 bit modes)
  • 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
  • Micrium μCOS
VOCAL Technologies, Ltd.
520 Lee Entrance, Suite 202
Amherst New York 14228
Phone: +1-716-688-4675
Fax: +1-716-639-0713