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February 7th, 2019
GL Enhances MAPS™ SIP to Support Instant Messaging using MSRP for Next Generation 911 (NG9-1-1)

Gaithersburg, Maryland, USA – GL Communications Inc. a global leader in telecom test and measurement solutions, enhanced the MAPS™ SIP Protocol Emulator that generates and receives SIP Signaling with traffic. In this newsletter, we will be discussing Message Session Relay Protocol (MSRP) Emulation for Session Based Instant Messaging in MAPS™ SIP software version 8.10.15. Public safety communication service providers can deploy this test tool for testing NG9-1-1 emergency services and components within the Emergency Services IP Network (ESInet).

Speaking to the press, Mr. Vijay Kulkarni CEO of GL Communications Inc said, “NG9-1-1 networks based on the National Emergency Number Association (NENA) i3 standards define network transformation route to receive and respond to NG9-1-1 emergency requests via multiple media sources such as SMS, Video, Email, and Instant Messaging (IM)”.

“Major wireless carriers have committed to providing Text-to-911 services to end users. In addition to these primarily carrier dependent services, there are many Over the Top (OTT) IM apps which connect users with the NG9-1-1 system directly”.

He further added, “To consider a series of messages exchanged in a private chat between SIP end-points in a single session, the messages are transported over a session-oriented instant message transport protocol called the Message Session Relay Protocol (MSRP). GL offers enhanced MAPS™ SIP emulator with Instant Messaging (IM) delivery capability conforming with RFC 4975/4976 – Message Session Relay Protocol (MSRP) protocol. “

“GL’s enhanced MAPS™ SIP with MSRP support for Instant Messaging allows SIP vendors, wireless carriers, NG9-1-1 service providers, and emergency communications centers to validate IP applications for NG9-1-1 services prior to deployment”.

Important Features of MAPS™ SIP

  • Supports UDP, TCP, and TLS transport types
  • High Density version capable of high call intensity (hundreds of calls/sec) and high volume of sustained calls (tens of thousands of simultaneous calls/platform)
  • MAPS™ CLI interface based on a client-server model allows users to control all features of MAPS™ through APIs (TCL, Python, VBScript, and Java Client)
  • Supports almost all industry standard codec types – G.711 (mu-Law and A-Law), G.722, G.729, G.726, GSM, AMR, EVRC, SMV, iLBC, SPEEX, EVS, OPUS, and more (*AMR and EVRC variants require additional licenses)
  • User-defined voice quality statistics for received RTP Traffic can be calculated and updated periodically during run-time to a csv file
  • Supports 64-bit RTP core to enhance performance – handles increased call rate of up to 3000 calls with high volume traffic
  • Supports both RTP G.711 Pass Through Fax Simulation and T.38 Fax Simulation over UDPTL
  • Bulk Video Call Generation supported with H.264 and H.263 video codecs

Please review the above and give us a call if you are interested in the above product/software or for any other applications listed in our website. We would be happy to discuss your testing needs and we look forward to hearing from you.


About GL Communications Inc.,

GL Communications Inc, is a global provider of test and measurement solutions and has over the years worked with major telecom equipment vendors, service providers, and system integrators to meet the testing requirements arising at various stages of telecom products development life cycle.

GL offers a broad set of test solutions that help perform all types of testing on networks, from initial system design, to fine-tuning, troubleshooting, live deployment, and monitoring. The products are widely used to verify and ensure ‘quality and reliability’ of Wireless (4G LTE, 3G, 2G), SONET/SDH, IP, TDM, and PSTN networks.

GL core product development is backed by a strong team of R&D experts to match evolving market and technical challenges in a most cost-effective and innovative way.