Key Takeaways:
- GL Communications launched a portable drive and walk testing solution powered by the vMobile device.
- The tool supports multi-device testing and automated scripting for voice calls across 5G, 4G, and 3G networks.
- Real-time streaming, GPS stamping, and indoor tracking provide detailed, location-accurate test results.
- Voice and data testing metrics include POLQA, PESQ, DAQ, delay, dropout, throughput, and network strength.
- Results are visualized via web dashboards with cloud access, report generation, and live monitoring.
GL Communications Inc. has announced the release of its updated drive testing solution for voice quality and network performance. The system centers around GL’s compact vMobile device, allowing telecom operators, regulators, and device manufacturers to conduct in-field testing of mobile networks under real-world conditions.
Field Testing Meets Flexibility

“GL’s drive testing solution is powered by the ultra-portable vMobile device—a lightweight, handheld unit designed for both drive and walk testing,” said Robert Bichefsky, Director of Engineering at GL Communications. “It connects via Bluetooth to two mobile phones or through analog interface to mobile radios, with scripting capabilities that automate call handling and voice recording for detailed analysis.”
The system supports versatile deployments, including vehicle-mounted use, indoor walk tests, and lab-based testing. It simulates end-user behavior while capturing performance issues like dropped calls, weak signal strength, and fluctuating data throughput.
Real-Time, GPS-Stamped Results
The device features built-in Wi-Fi and Bluetooth for remote operation and real-time streaming of test data. Engineers can monitor ongoing campaigns without manual downloads or local access. With GPS integration, test events are accurately time-stamped and geotagged for precise mapping.
In environments where GPS signals are weak—such as indoor settings or underground spaces—GL’s indoor tracking system provides continuity, maintaining location accuracy throughout the test cycle.
Multi-Layered Testing Metrics
Beyond standard performance indicators, the solution supports:
- Voice quality scoring using POLQA, PESQ, and DAQ methodologies
- Network metrics such as mean opinion score, delay, signal-to-noise ratios, audio dropouts, and throughput
- Simultaneous data testing with GL’s NetTest app, running TCP and UDP speed tests alongside voice calls
All data is collected and transmitted to a central system for real-time analysis and archiving.
Visual Intelligence for Teams and Regulators
Test results are rendered in web-based dashboards that include interactive maps, pass/fail overlays, and graphical analytics. The visualization system enables:
- Real-time campaign monitoring
- Cloud-based access to test data
- Automatic report generation and email distribution
- Cross-location test management and remote control
Operators and regulators can identify coverage gaps, performance degradation, and optimization opportunities from a single pane of glass.
Automation and Enterprise Scalability
The platform includes an API interface for automated scripting, making it ideal for enterprises conducting frequent or large-scale testing. This helps reduce manual labor while ensuring consistency across test scenarios.
Built for Broad Industry Use
GL’s drive testing solution can be used across urban and rural areas, indoors and outdoors, and in controlled lab environments. It is designed to serve:
- Carriers and service providers looking to improve quality of service
- Device manufacturers validating handset performance under real-world conditions
- Government regulators overseeing compliance with telecom standards
As demand for seamless voice and data service continues to grow, GL’s field testing platform offers a scalable, accurate, and flexible tool to keep networks accountable and competitive.
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