GL Communications Inc.
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Voice, Video, and Data Testing
in Wireless Network

VQuad™ Software Ver 9.0 | VQT Software Ver 7.0 | WebViewer™ Software Ver 5.1  | Download Now!


Wireless networks can impair voice, video, and data quality by various means including poor mobile phone quality, voice compression and decompression algorithms, video compression and decompression algorithms, delay, loss or gain in speech levels, noise, acoustic and landline echo, and other distortions. GL provides a compact and portable solution for Wireless Devices, and Mobile Radio testing.

Using the GL VQuad™ application with the Dual UTA HD, or all-in-one VQuad™ Probe HD, voice, video, and data QoS can be tested for practically any end-point (customer experience) interfaces. The  Dual UTA HD is a compact and portable device which provides multiple interfaces for connecting to any communication device on a network.  The VQuad™ with Dual UTA HD can work with variety of networks, including Wireless (Bluetooth®, Wi-fi, 3G, 4G, LTE, PTT), VoIP, Analog, and TDM. Various associated applications (Voice QualityVideo QualityData testsEcho and Delay testsFax testsVBA) works with VQuad™ Dual UTA HD to provide "end-to-end assessment" with additional test and measuring capabilities.

Additionally, the Dual UTA HD includes support for testing HD voice using Bluetooth® Wideband, FXO Wideband, and also includes PTT interface for wireless mobile device testing.

Enhanced VQuad™ with Dual UTA HD supports two methods of automated testing of mobile devices, Bluetooth and Wired Headset using GL’s new cable, Smartphone with Automated Call Control (ACC).

Results provide an excellent overall measure of end-to-end voice, video, data, and signal quality. All the applications work in conjunction with the VQuad™ for automatically and remotely analyzing the captured data and sending the test results to the central database.  You can query results remotely or control the tests using web-based WebViewer™.

Main Features

  • Supported devices - Mobile Radio (PTT) & Mobile devices (Wi-Fi, WiMax, Bluetooth®, Broadband (3G or 4G), LTE, iPhone, Android)
  • Control Smartphones on any wireless network (Bluetooth®, 5G, VoLTE, VoWiFi, VoFemto, 3G) - - both NB and WB voice supported
  • Compact and portable solution for testing mobile end-to-end voice, video, and data quality
  • Automated mobile phone testing using either Bluetooth or the Wired Headset Smartphone ACC methods
  • Mobile phone connects to the Dual UTA HD PTT interface using the GL Smartphone ACC cable
  • Wired Headset supports NB, WB, SWB.
  • Mobile Phone call control supports Bluetooth®, Dual PTT, 3.5mm Audio Jack, and Dual 3.5mm In/Out terminations for Smartphones (iPhone, Android)
  • Dual UTA HD Bluetooth® can connect to Bluetooth® headsets, Bluetooth® in the car, and any Bluetooth® device to perform Voice Quality Tests
  • Bluetooth® compatible. Performs RSSI, Battery level functions, Network verification.
  • Support for Bluetooth Wideband with 16000 Sampling Rate used in VoLTE network with AMR Wideband codec (requires latest Dual UTA HD firmware and hardware).
  • Control Mobile Radios with Push-to-Talk functionality; Supports radio keying and send/record audio
  • Results available in real-time or post-processing
  • Compatible with automated GPS location time-stamping

Additional functionalities supported with VQuad™ Wireless:

  • Voice Quality Testing (VQT) software for analysis according to widely accepted ITU (International Telecommunications Union) voice comparison algorithms (POLQA, PESQ LQ/LQO/WB)

  • Data Quality Testing (NetTest™)application for performing automated data testing on a wireless or wired network; tests include TCP, UDP, VoIP, Route, HTTP, FTP, DNS, SMS, Email, SIMInfo, Phone Info, and UEInfo

  • Video Quality Testing (VAC™) application for performing fully automated Video Conference testing and get Audio and Video MOS QoS results along with several analytical metrics

  • Echo Measurement Utility (EMU) for echo and delay measurements, including RTD, OWD, ERL, EPD, and more

  • Voice-band Analyzer (VBA) for monitoring voice band traffic (Speech Level, Activity Factor, RMS Factor, DC Level, Noise Level, Jitter, Echo Return Loss, Echo Delay, and Echo Dispersion)

  • Fax Quality Testing for emulation and analysis of T.30 faxes (GLInsight™ or FaxScan™)

  • Drive Testing solution for plotting all results and call control information along with co-ordinates using GPS receiver option in VQuad™, and Google Maps option within WebViewer™

  • WebViewer™ for web based controlling and monitoring VQuad™ nodes over the entire network

Voice Quality Testing (VQT)

GL's VQT may be executed automatically (real-time and/or post-processing) or manually by entering a Reference File and Degraded File. Regardless of how GL's VQT is initiated, algorithms for POLQA, PESQ MOS, and PESQ LQ are executed simultaneously for the two voice files and results are shown graphically as well as in a tabular format. GL's VQT also displays cumulative statistics for large scale testing over long periods of time.

  • VQT software supports both POLQA (ITU-T P.863) and PESQ (ITU-T P.862/862.1/862.2)
  • VQT supports analysis of PCM16 files consisting raw data as well as u-law/a-law encoded data.
  • VQT also support analysis of uncompressed wav files consisting of narrow band, wide band and super wide band signals.
  • POLQA ITU-T P.863 for next generation voice quality testing supporting NB (8000 sampling), WB (16000 sampling) and SWB (Super Wideband) (48000 sampling)
  • Evaluate audio quality with MOS, E-Model, SNR, jitter, clipping, signal level, noise level, and delay measurements
  • Supports latest PESQ ITU release including ITU-T P.862, 862.1 and 862.2 (supports PESQ, PESQ LQ, PESQ LQO, PESQ WB)
  • PESQ analysis results include PESQ, PESQ LQ, PESQ LQO, PESQ WB, PESQ Ie, and PESQ per Utterance

PESQ Measurement Window

POLQA Measurement window

VQT Cumulative Statistics

WB Voice Testing using Wireless Bluetooth Devices

The VQuad™ with Dual UTA HD system can connect to Bluetooth mobile phones or any end-equipment supporting HD (WB) audio on all interfaces.
The Bluetooth solution supports full Call Control with ability to confirm current status of call as well as sending commands to the phone, via Bluetooth, to retrieve Signal Level (RSSI), Battery Level, Current Network, to name a few.

While in the established call, traffic analysis and Voice Quality is fully supported for both NB and WB networks (VoLTE fully supported).

With the Dual UTA HD Bluetooth® option, the Dual UTA HD act as a Bluetooth® Headset and connects to the mobile phone to perform voice quality analysis along with accurate delay and level measurements on Bluetooth® enabled mobile devices.

The Dual UTA HD can act as the Mobile Device and connect to any Bluetooth® headset to perform ‘Voice Quality Tests’ on the Bluetooth® Headsets. In other words, isolate the Bluetooth® headset for voice quality analysis.

This is extremely important for testing Bluetooth® headsets, Bluetooth® in the car, and pretty much any Bluetooth® device which connects to a mobile phone for voice. Both narrowband and wideband codecs are supported.

  • GL’s VQuad™ solution is network and device independent
  • Pair to any mobile phone (multiple phones simultaneously)
  • Connects to any previously paired phone and provides call control and voice
  • Supports several Bluetooth functions such as Signal Strength, Battery Level, SMS, Network

Wired Headset Method for Mobile Phone Testing

Automated Mobile Phone Testing using Wired Headset Smartphone ACC cable

The Wired headset method connects the mobile phone to the Dual UTA HD PTT interface using the GL Smartphone Automated Call Control (ACC) cable.

Through the VQuad™ script (or manual operation), the VQuad™ can activate the iPhone SIRI or Android Google Voice and send a predefined file to the mobile device in order to Place Call to a specified number (or simply Redial). In addition, VQuad™ includes Text-to-Speech technology for automatically creating the necessary voice prompt for placing call over Siri or Google Voice. In other words, the Smartphone ACC cable method includes a fully automated method for Placing Call. The Smartphone ACC cable can also detect incoming Ring (for automated Answer call), Answer Incoming Call (or Reject Incoming Call) and Disconnect Call.

The Smartphone ACC can perform all basic Call Control functions for fully automated bi-directional call control and the method also supports NB, WB, and SWB sampling.

Automated Data Quality Testing


Automated Video Quality Testing


Drive Testing for Wireless Networks


Delay Measurement


Echo Measurement


SIP Call Generator and Call Analyzer to Mobile Phone

This system connects at the digital level (Ethernet 10/100) and at the analog level. It can perform call generation and analysis of VoIP Calls and VQT measurements to/from the mobile.

Mobile Radio Testing

The Dual Universal Telephony Adapter (UTA) HD has the ability to interface to a mobile radio, thus allowing for voice quality testing. Control of the Push-to-Talk (PTT) feature is available with the Dual UTA HD and the VQuad™ software. Directly before the audio file is transmitted the VQuad™ software will command the Dual UTA HD to enable the PTT on the radio. This feature makes the testing completely automated and hands free.

Buyer's Guide

Please Note: The XX in the Item No. refers to the hardware platform, listed at the bottom of the Buyer's Guide, which the software will be running on. Therefore, XX can either be ETA or EEA (Octal/Quad Boards), PTA or PEA (tProbe Units), UTA or UEA (USB Units), HUT or HUE (Universal Cards), and HDT or HDE (HD cards) depending upon the hardware.

Item No. Item Description
  VQuad™ Network Options
VQT010 VQuad™ Software (Stand Alone)
VQT013 VQuad™ with SIP (VoIP) Call Control
VQT015 VQuad™ with T1 E1 Call Control
  VQuad™ Miscellaneous
VQT030 Network Command Center (Multi-Node Command and Control Center for VQuad™ Systems)
VQT251 Dual UTA HD Next generation Dual UTA with FXO Wideband support
VQT252 Dual UTA HD – Bluetooth Option
VQT461 Dual UTA HD Smartphone ACC Cable
VQT002 Voice Quality Testing (PESQ only)
VQT006 VQT w/ POLQA Server License
VBA032 Near Real-time Voice-band Analyzer
VQT040 Webviewer™
VQT601 Data Tests on Mobile Devices
VQT650 Video Application Controller (VAC)
(includes VAC Server and VAC companion software)
VQT280 VQuad™ Probe HD (with Dual UTA HD)
VQT281 VQuad™ Probe HD w/o Dual UTA HD
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