Comprehensive Voice Quality Testing for Telecom Networks

Exploring GL Communications’ Advanced Voice Quality Testing Solutions

In the rapidly evolving telecommunications landscape, ensuring superior voice quality across diverse network types—wireless, Voice over Internet Protocol (VoIP), and analog—has become paramount. On January 11, 2024, GL Communications Inc., a frontrunner in telecom testing and measurement, unveiled their cutting-edge Voice Quality Testing (VQT) solutions during a press briefing in Gaithersburg, Maryland. These solutions leverage state-of-the-art algorithms to deliver objective and precise assessments of voice communication quality. For a deeper insight, the original announcement can be viewed here.


Unveiling Next-Gen Voice Quality Testing Standards

Robert Bichefsky, the Director of Engineering at GL Communications, highlighted the company’s dedication to advancing voice quality testing standards. Utilizing the latest versions of the Perceptual Objective Listening Quality Analysis (POLQA, ITU-T P.863) and the optional Perceptual Evaluation of Speech Quality (PESQ, ITU-T P.862) algorithms, GL’s VQT software sets a new benchmark in voice quality evaluation for fixed, mobile, and IP-based networks.


Key Highlights of GL’s VQT Software:

  • Comprehensive Compatibility: Supports analysis of Narrowband (NB), Wideband (WB), and Super Wideband (SWB) audio files in both Raw PCM and WAV formats.
  • End-to-End Testing: Integrates seamlessly with GL’s VQuad™ and vMobile™ solutions, along with other audio capturing tools, for thorough audio quality assessment.
  • Objective Quality Metrics: Provides Mean Opinion Score (MOS) and additional metrics such as Signal and Noise levels, SNR, and Jitter for a detailed quality analysis.

Versatile Testing Solutions:

GL’s suite of testing solutions, including the VQuad™ with Dual UTA HD hardware and the hand-portable vMobile™, offers unparalleled flexibility for conducting voice quality tests across a variety of networks. These tools support automated scripting for call control and traffic emulation, ensuring comprehensive testing on Wireless, PSTN, and IP networks.


Innovative Enhancements:

The AutoVQT™, an advanced automatic testing application, represents a significant improvement in voice quality testing efficiency. By leveraging the POLQA algorithm, AutoVQT™ can quickly analyze vast numbers of voice files, facilitating rapid quality assessments across VoIP, Mobile, and PSTN networks.


Remote Operation and Data Analysis:

GL’s VQT solutions stand out for their remote operability via Command Line Interface (CLI) and Application Programming Interfaces (APIs), compatible with Windows®, Linux®, and Mac® systems. The integration of a central database and the WebViewer™ dashboard allows for efficient data management and analysis, including real-time mapping of test results when GPS data is available.


GL Communications Inc. continues to redefine the standards for voice quality testing in the telecom industry with its latest suite of VQT solutions. By embracing cutting-edge technologies and offering versatile testing tools, GL is positioned at the forefront of ensuring excellent communication experiences across all network types.


About GL Communications Inc.

With a global presence, GL Communications Inc. is at the forefront of providing comprehensive telecom test and measurement solutions. Their innovative tools and software are essential for validating the reliability and quality of various network types, including 5G, 4G, 3G, 2G, SONET/SDH, Ethernet/IP, TDM, and PSTN, ensuring top-notch service delivery in the telecommunications sector. For more information, visit GL Communications.

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