GL Communications Enhances SIP Network Testing for Scalable VoIP and IMS Validation

New features enable high-capacity, secure, and automated testing of voice, video, and messaging services across IP and IMS networks.

Mar. 31, 2026 at 4:24pm

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A highly detailed, glowing 3D illustration of a complex network of interconnected SIP servers, proxies, and gateways, with neon cyan and magenta lights illuminating the various components, conceptually representing the scale and complexity of modern IP and IMS communication networks.Cutting-edge SIP testing solutions enable service providers to validate the scalability and security of next-generation voice and multimedia communication networks.Gaithersburg Today

GL Communications Inc., a global provider of voice testing solutions, has announced significant enhancements to its SIP testing platform, MAPS™. The updates enable high-load, secure, and automated generation of voice, video, fax, and messaging services across IP and IMS networks. MAPS™ SIP emulates key SIP entities like User Agent Clients, User Agent Servers, Proxy Servers, Registrars, and Gateways, supporting comprehensive protocol conformance, interoperability validation, and performance testing.

Why it matters

As VoIP and IMS networks evolve toward large-scale, multi-vendor architectures supporting secure real-time communications, validating signaling accuracy, media quality, and session reliability under realistic traffic conditions has become critical. Structured SIP testing enables service providers and equipment manufacturers to ensure interoperability, scalability, and deployment readiness across complex communication infrastructures.

The details

The enhanced MAPS™ SIP platform enables high-capacity RTP validation supporting up to 160,000 concurrent voice calls at 500 calls per second, along with seamless T.38 to T.30 fallback support for accurate fax interoperability testing. The solution also introduces automated call transfer capabilities using CSV-based profiles, enabling flexible execution of large-scale call scenarios for stress and regression testing. Security enhancements include support for 4096-bit TLS key length and improved cipher suite negotiation during TLS handshake, enabling validation of secure SIP communication workflows across enterprise and carrier-grade environments. Expanded Python API capabilities allow users to retrieve call statistics based on dialog types, reset statistics dynamically during load testing, and integrate automation workflows across Windows, Linux and macOS platforms.

  • The enhancements to GL's MAPS™ SIP platform were announced on March 31, 2026.

The players

GL Communications Inc.

A global provider of voice testing solutions that has announced significant enhancements to its SIP testing platform, MAPS™.

Vijay Kulkarni

The CEO of GL Communications, who stated that SIP remains the foundation for modern voice and multimedia communication services across IMS and enterprise environments.

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What they’re saying

“SIP remains the foundation for modern voice and multimedia communication services across IMS and enterprise environments. With these enhancements to MAPS™ SIP, customers can emulate large-scale call scenarios, validate secure signaling workflows, and automate regression testing to ensure reliable deployment of next-generation communication services.”

— Vijay Kulkarni, CEO of GL Communications

What’s next

GL Communications plans to continue enhancing its MAPS™ SIP platform to support the evolving needs of service providers and equipment manufacturers in the VoIP and IMS space.

The takeaway

GL Communications' MAPS™ SIP platform enhancements demonstrate the critical importance of comprehensive SIP testing in ensuring the interoperability, scalability, and security of modern voice and multimedia communication services across complex IP and IMS networks.