VoIP Radio Gateway : Case Study
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The document details a case study on Mistral's development of a VoIP radio gateway for Amper, aimed at integrating various radio communication systems into a unified SIP-based platform. It highlights the gateway's modular design, interoperability with multiple radio types, and advanced features like SNMP monitoring and web interface configuration. Key achievements include significant lines of reusable code, extensive test cases for validation, and a compact solution that optimizes production costs.
VoIP Radio Gateway : Case Study
- 1. Case Study VoIP Radio Gateway Introduction Communication gateways permit seamless convergence between The Customer IP network, IP dispatchers, SIP terminals or SIP phones and the Amper is a leading European player in defense, telecommunication and existent radio networks UHF/VHF, GSM, CDMA and other digital homeland security and carries out engineering projects, integration and radio base stations. IP Radio Gateways are dedicated equipment for maintenance of communications networks, unified communications and Mission Critical Applications including Public Safety, Transportation, collaboration, next-generation networks, border protection systems, emergency management systems and critical infrastructure protection Maritime, Defense or Air Traffic Control. on a global scale. This case study showcases Mistral’s capability in designing a flexible and easy to upgrade VoIP Radio Gateway solution, interoperable with The Requirement all types of radio communications including conventional radios, The existing EMS system being used by Amper was designed for TETRA and TETRAPOL terminals. This IP Radio Gateway solution is emergency and communications management. It is modular and an exclusive and protected design for Mistral’s European customer, scalable, specially directed to make communication, control & dispatch Amper. easier for the control room operators in emergency situations. The system allowed communication between speakers using different and incompatible communication systems (conventional radio, analogue and digital radio trunking, fixed and mobile telephony, public address, etc). Amper approached Mistral to develop a new radio gateway platform to integrate radio interfaces into the SIP world. The new device needed to be a standard PCB which could be used with different kinds of radio (VHF, UHF, TETRA, TETRAPOL, etc.) by making the corresponding software adjustments over it (configuration settings). Solution Provided Mistral provided a solution integrating various line, interface and mixer cards for the system based on TI’s DM8148. The hardware consisted of a number of analog radio interfaces to support the different kinds of radios required by Amper. The team also worked on protocol implementation, integration audio codecs and a SIP client for making VoIP calls. The solution included implementation of SNMP and also provided a web interface with configuration support. Key features of the system are provided below: Flexible and easy to upgrade Hardware : VoIP Radio Gateway solution, interoperable ! TI DM8148 based solution ! 10/100 Ethernet interface with all types of radio communications.
- 2. Key Achievement Operator : SYS/BIOS based product First Developed a VoIP framework which can be reused by the customer for : similar gateway solutions : than 75K lines of C-code developed within short span of time More Internet GRG : than 3000 test cases used for product validation More Soft Switch : radio gateway designed provided interoperability between many The incompatible radio networks. SIP Proxy Customer Benefits SIP Registrar and location server Customer got a small-footprint, power optimized solution : :entire system comprised of a compact unit, integrating interface and The Software : conferencing into a single device, saving on BoM and production cost for ! SIP based VoIP solution the customer ! G.711 codec : offered an end-to-end solution to the customer covering both the Mistral ! SNMP based status monitoring hardware and software aspects of the project, helping the customer to ! Support for PMR radio, analog trunking radio, achieve a quick-turn around with no compromise on quality. digital trunking radio etc. ! Web interface with configuration support. The Challenges Integration of various radio protocols into the radio gateway software : This : was one of the first products developed using SYS/BIOS and since SYS/ BIOS was newly released to market, there were lots of integration issues. www.mistralsolutions.com Mistral Solutions Pvt. Ltd., Mistral Solutions Inc., Branch Offices: No.60, 'Adarsh Regent', 4633 Old Ironsides Drive, INDIA 100 Ft. Ring Road, Suite 410, ! Hyderabad Domlur Extension, Bangalore - 560 071 Santa Clara, CA 95054 USA ! New Delhi Tel: +91-80-3091 2600 Phone: +1-408-705-2240 USA Fax: +91-80-2535 6440 Fax: +1-408-987-9665 ! Dallas, Texas E-mail: [email protected] E-mail: [email protected] © Copyright 2012, Mistral Solutions Pvt. Ltd. All rights reserved. & ...Partners in Real Time are registered Trademarks and Logos of Mistral. All other Trademarks and Trade names are the property of the respective owners.