Press Release

Telecom Test Solutiions

SIP Emulation to Support Instant Messaging using MSRP for Next Generation 911 (NG 9-1-1)

Gaithersburg, Maryland, USA – July 16, 2019- GL Communications Inc. a global leader in telecom test and measurement solutions, enhanced their MAPS™ SIP Protocol Emulator (version 8.10.15)  with Message Session Relay Protocol (MSRP), that enables  MAPS™ SIP software to send and receive 911 Instant Messaging Public safety service providers can deploy this test tool for testing their NG 9-1-1 emergency services and components within the Emergency Services IP Network (ESInet).


“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)”, said Mr. Vijay Kulkarni CEO of GL Communications.

“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

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