(3G, 4G, 5G, WiMax, LTE, WiFi)...(3G, 4G, 5G, WiMax, LTE, WiFi) Overview GL's NetTest VQT app, supported on rooted Android devices, supports both manual and automated testing of Voice

818 West Diamond Avenue - Third Floor, Gaithersburg, MD 20878, U.S.A (Web) www.gl.com/ - (V) +1-301-670-4784 - (F) +1-301-670-9187 - (E-Mail) [email protected]

Document Number: VQT600-2.3.10-01

Automated and Centrally Controlled Testing

Rooted Android Mobile Devices

Place and Receive Calls over the Network from within the Mobile Application

Play and Record Voice over the Established Call

POLQA and PESQ VQT Analysis

Google Map Plotting of the VQT Test Locations

Remotely Control Mobile Devices (WiFi, Bluetooth®, 3G, 4G, LTE)

Data, Voice, and Video Network Quality Testing

Automated Control and Operations

Mobile Voice Testing using Android Application (3G, 4G, 5G, WiMax, LTE, WiFi)

Overview

GL's NetTest VQT app, supported on rooted Android devices, supports both manual and automated testing of Voice Quality within the network. The GL NetTest VQT app includes features to place and receive calls over the network along with Play and Record voice over the established call. The call control functions and ability to send/record voice (for voice quality analysis) can be run manually from the app, automated from the app (using predefined scripts) or automatically and remoted using VQuad™ scripting. Using this solution, testing can be accomplished between two Android phones (both running the NetTest VQT app) or between the Android phone and any device connected to GL's VQuad™ with Dual UTA HD. The NetTest VQT app stamps all results with GPS location for plotting within Google Maps as part of the GL WebViewer™ solution.

All recorded voice files, whether recorded at the NetTest VQT app (on the Android phone) or recorded at the VQuad™ system, are automatically transferred to the Central VQT system for analysis using VQT POLQA (ITU-T P.863) or VQT PESQ (ITU-T P.862) algorithms. All results associated with the VQT analysis as well as the call control events are transferred to the Central Database and accessed using GL’s web-based WebViewer™.

For complete details, visit https://www.gl.com/voice-quality-testing-mobile-application.html.

Features

• Supports voice quality testing on rooted Android devices with support for Playing and Recording voice files during an established call.

• VQuad™ scripting, when connected to the GL NetTest VQT app, provides automation, mobility, remote accessibility.

• GLNetTestVQT mobile application available for Android devices supporting manual and automated operations

• Flexibility to manage the mobile device connection with the MDC server

• Configuration settings to customize the voice file (*.pcm) to be transmitted and record to a required location

• Recorded files are transferred to the VQT central system for analysis.

• Google map plotting of the VQT test location feature is available within VQT mobile application which is helpful during drive testing

• Analyzed voice test results are sent to the Central Database, accessible via WebViewer™

818 West Diamond Avenue - Third Floor, Gaithersburg, MD 20878, U.S.A

(Web) www.gl.com/ - (V) +1-301-670-4784 (F) +1-301-670-9187 - (E-Mail) [email protected]

Document Number: VQT600-2.3.10-01

Voice call between rooted Phone (GLNetTestVQT app) and Mobile device connected to Dual UTA HD

As depicted in the figure below, a call can be established between the non-rooted Mobile phone (or any device connected to the Dual UTA HD) and a rooted Android phone running the GL NetTest VQT app. The non-rooted Android phone is connected to GL’s Dual UTA HD via Bluetooth or wired headset (3.5mm jack). The call can be initiated from either side (VQuad™ or GL NetTest app), and either manually or automatically (using the VQuad™ scripting).

Once the call is established, voice can be transmitted from either side while the other terminal records voice to a file (degraded). Different files can be selected for transmit including a variety of languages and both Male and Female (user can also send custom voice files to the GLNetTestVQT app). Both sides of the call can be controlled by the VQuad™ software for fully automated testing.

All recorded voice files are automatically transferred to GL’s VQT Central system for analysis using POLQA/PESQ algorithms. The VQT results are sent to the Central Database where the results can be accessed using WebViewer™.

Voice call between 2 rooted Phones (GLNetTestVQT app)

A call can be established between two rooted Android phones, both running the GL NetTest VQT app. The GL NetTest VQT app can generate the call manually, automated, or remotely from the VQuad™ system.

Once the call is established, voice can be transmitted from either side while the other terminal records voice to a file (degraded). Different files can be selected for transmit including a variety of languages and both Male and Female (user can also send custom voice files to the GLNetTestVQT app). Both sides of the call can be controlled by the VQuad™ software for fully automated testing.

All recorded voice files are automatically transferred to GL’s VQT Central system for analysis using POLQA/PESQ algorithms. The VQT results are sent to the Central Database where the results can be accessed using WebViewer™.

818 West Diamond Avenue - Third Floor, Gaithersburg, MD 20878, U.S.A

(Web) www.gl.com/ - (V) +1-301-670-4784 (F) +1-301-670-9187 - (E-Mail) [email protected]

Document Number: VQT600-2.3.10-01

Voice Test using Mobile Device App

GLNetTestVQT Android application is used to play (send pre-recorded voice pcm files) or record (record incoming audio) audio files over established wireless calls.

Available voice test functionalities include Place Call, Answer Call, Play Voice File, Record Voice File, and Transfer Files to the VQT Central System. Users can play a variety of predefined POLQA Reference files. During Recording, the user can specify the filename as well as the length of the recording. The recorded files can be transferred to the VQT server for analysis.

GL NetTestVQT app includes Map option to automatically plot VQT Record and Play Voice Test on Google map indicating the co-ordinates and the test running.

VQT Results in VQT Webviewer™

The Voice test results from VQuad™, and VQT are automatically sent to the Central Database where the results can be viewed/queried using the GL WebViewer™ (web browser).

The results sent to the central database include, POLQA Score, EModel (R-factor), Speech Level Gain (dB), Noise Level Gain (dB), Jitter(ms), Delay(ms), PESQ, PESQ WB, PESQ Offset(ms), along with a variety of analytical and quality metrics. Results can be output to file or generate custom reports.

VQuad™ Scripting

A voice call can be established between the non-rooted Mobile phone (or any device connected to the Dual UTA HD) and a rooted Android phone running the GL NetTest VQT app. The non-rooted Android phone is connected to GL’s Dual UTA HD via Bluetooth or wired headset (3.5mm jack). The call can be initiated from either side (VQuad™ or GL NetTest app) either manually or automatically using the VQuad™ scripting.

The call control functions and ability to send/record voice (for voice quality analysis) can be automated and remotely controlled using VQuad™ scripting.

Buyer’s Guide

VQT600 - Data Server VQT601 - Mobile Device Controller (MDC) Software

VQT040 - WebViewer™

VQT010 - VQuad™ Software (Stand Alone)

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

For complete Voice Test Solution product list, refer to http://www.gl.com/voice-quality-testing-mobile-application.html.

Central VQT System (POLQA, PESQ)

GL's Voice Quality Testing (VQT) software supports automated or manual voice quality analysis for fixed, mobile and IP-based networks using POLQA (ITU-T P.863), PESQ (ITU-T P.862.1/.2).

Analytical results include MOS, E-Model, Signal Level, SNR, jitter, clipping, noise level, and delay (end to end as well as per speech utterance).