GL Communications Enhances SIP Network Testing Solutions

20th, Mar 2026

Gaithersburg, Maryland, USA – March 2026 – GL Communications Inc., a global provider of voice testing solutions, announces significant enhancements to its SIP testing platform, enabling high-load, secure and automated generation of voice, video, fax, and messaging services across IP and IMS networks.

GL’s Message Automation and Protocol Simulation (MAPS™) platform emulates SIP entities including User Agent Clients, which initiate SIP requests, and User Agent Servers, which respond to those requests. It also emulates Proxy Servers, Registrars and Gateways, supporting comprehensive protocol conformance, interoperability, and performance testing.

MAPS™ SIP

As VoIP and IMS networks scale in complexity, validating call performance, signaling accuracy, and media quality under real-world conditions is critical. The latest enhancements enable large-scale load testing, secure media validation and automation-driven workflows.


Key Enhancements

  • High-Scale RTP Validation
    • Supports up to 160K concurrent voice calls at 500 CPS
  • Improved Fax Call Handling
    • Seamless T.38 to T.30 fallback support for accurate fax validation
  • Advanced Call Control
    • Auto call transfer support using CSV-based profiles
  • Stronger Security Capabilities
    • Support for 4096-bit TLS key length
    • Enhanced cipher suite negotiation during TLS handshake
  • Enhanced Python Automation
    • Fetch call statistics based on dialog type (INVITE / REGISTER / SUBSCRIBE)
    • Reset call statistics for load testing scenarios
  • Expanded Platform Compatibility
    • Supports Python versions 3.7 to 3.13
    • Compatible with Windows, Linux, and macOS environments
  • Simplified Integration
    • Python client delivered as a .whl package for easy automation integration

Why This Matters

As VoIP and IMS networks scale in complexity, these enhancements help you:

  • Validate real-world SIP behavior at scale
  • Ensure voice and video quality (MOS, jitter, delay)
  • Test secure communications (TLS / SRTP)
  • Accelerate testing cycles through automation
  • Reduce deployment risks and service disruptions

Built for Real-World SIP and IMS Testing

MAPS™ SIP enables comprehensive validation across:

  • Voice, Video, Fax (T.38 / G.711)
  • Instant Messaging (MSRP)
  • IVR and speech-based interactions
  • IMS and NG9-1-1 environments

Supports emulation of:

  • User Agents
  • SIP call scenarios, including setup, teardown and re-INVITE handling
  • High-volume SIP traffic generation for load and stress testing
  • RTP media stream generation for media handling and performance validation

Who Benefits?

  • Telecom Operators and Service Providers
  • Network Equipment Manufacturers
  • Government customers relying on secure VoIP communication
  • Enterprise Communication Teams

Back to Newsletter Index Page Back to Newsletter Index Page