Voice / Video / Data


(Web Based Client for Voice and Data Quality Testing)


Latest Software

  • VQuad™ Software Ver 10.7.4
  • Voice Analysis Tool (VAT™) Ver 1.1
  • VQT Software Ver 7.9.1
  • WebViewer™ Software Ver 5.11
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GL's WebViewer™ provides the method to display and access, in real time, the entire VQuad™/VQT network including all individual VQuad™ probes as well as the central location. Current status of the entire test is displayed along with customized user statistics and results of the active tests. The WebViewer™ uses a simple web browser with facilities to query the results either manually or automatically as well as output the results/statistics. These results include VQuad™ Call Event, User Defined Events, Bluetooth® events, Data Test (NetTest from PC and NetTest from Mobile Device), VQTVBADelay and Echo Measurement results and Fax TxRx Events which can be saved to either text or Excel format. WebViewer™ includes support for user-defined statistics with both tabular and graphical outputs.

The WebViewer™ browser can also provide real-time status of the entire VQuad™/VQT network as well as remote accessibility of any node associated with the network. Transfer configuration files between the VQuad™ nodes and your local system for enhancements. Automatically send the updated configuration back to the VQuad™ system (or all VQuad™ systems). Rerun the test using the enhanced VQuad™ configuration, all from the WebViewer™ browser running on either Windows® based or Mac based systems (including iPhone and iPad devices).

GL’s VQuad™ provides automatic call control over several networks and supports transmit/capture of voice files in real-time from the various nodes. The degraded (recorded) voice files are automatically transferred to the Central Location where GL's VQT analyzes and generates the results using POLQA (ITU-T P.863), PESQ (ITU-T P.862) test methods. Additional analytical metrics are also provided as a result of the VQT algorithm including jitter, clipping, and level measurements.

GL's new VQuad™ Probe HD is an all-in-one self-contained VQuad™ with Dual UTA HD test instrument. This comprehensive hardware device incorporates all the features of the current VQuad™ with Dual UTA HD unit such as portability and remote accessibility along with the necessary PC hardware with Win7 OS. The VQuad™ probe HD can be controlled via Ethernet Remote Desktop (with support for mouse/keyboard) and is of same length as the current Dual UTA HD hardware, but about twice as high and 50% wider.

The vMobile™ - Portable VQT Test Solution is a handheld device which can support full audio testing for mobile phones and mobile radios, as well as providing data testing for mobile phones. The vMobile™ can be hand-carried for walk and drive testing (includes GPS) as well as left in labs and can work directly with GL’s VQuad™ solution for very flexible end-to-end testing. All functionality and configuration of the vMobile™ is accessed using the remote web-based Console or Console App which is installed on any Android or iOS device.

GL's Voice Analysis Tool (VAT™) application is used to analyze the audio content within any PCM audio files and generates a variety of audio metrics. VAT™ has a user-friendly interface to perform manual and automated analysis of multiple tests using a single PCM audio file received from the VQuad™, vMobile™, or any other applications.

Enhancements with the latest WebViewer™ includes customization of report generation with result statistics, tabular data, bar graphs, and line graphs. And the Report Scheduler gives the user the ability to specify when to schedule a report along with the schedule period and user-specified filters.

OWD Measurement on 5G Networks

Live Demo


This is a live demo of GL's WebViewer™ system. Using this demo, you can watch (in real-time) the quality of voice files being probed and captured from various network nodes.


Nodes Management

  • Ability to perform auto software upgrade on all nodes in the network remotely.
  • Supports email alerts based on communication faults or results below user-defined thresholds.
  • Allows admin to pre-define the VQuad™ nodes and its operations within WebViewer™.
  • Allows admin to restrict access permissions for different users to certain WebViewer™ results, nodes, and configurations only.


  • Windows® 7 or 8 (32, 64-bit) or 2008 Server or 2012 Server (64-bit)
  • Supported on PC, Netbook, Macbook, and Mobile devices such as iPhone, Android, and iPad. View results remotely anytime anywhere using any of these access points.


  • Supports both Oracle and MS Access
  • All results from individual VQuad™ probes, VQT, VBA, EMU, DataTest, Video, and FAX applications are automatically sent to central database
  • Utility to communicate with nodes and database seamlessly. Also supports database backup, export and import.
  • Offline support for importing the saved results in case of connection failure.
  • Support for Primary and Secondary IP addresses configurations for backup and redundancy


  • Graphical display of Calls in Process, Analyzed (VQT, FAX, Time Delay Measurement) results, and SMS/Email NetTest results
  • Segregated NetTest results display (TCP, UDP, VoIP, Route, HTTP, FTP, DNS, SMS, and Email) and Mobile Device Information results display (PhoneInfo, SimInfo, UEInfo)
  • Results include VQT (PESQ POLQA), Call Control (Call Failure, Call Dropped, Call ID), Echo Measurements, Data Test (via Mobile device or PC Ethernet), Delay Measurements, and Fax Tx Rx Events.
  • Display all result events or display on per call basis (all results within call are averaged with min/max values provided).
  • Time/Delay Measurement Result includes Connect Time (CT), Call Connect Time (CCT), Level Measurement, FXO Line Current, Line Voltage, and Ring Voltage
  • Query results based on a variety of mechanisms to extract customized reports.

Statistics and Network Status

  • Standard measurements and events (call control, time delay, vqt) can be analyzed using graphical and tabular views
  • Customize statistics view based on any results within database.
  • Display real-time status of entire network with ability to remotely access any node within network.
  • Display VQuad, VQT, Mobile Devices, and File Monitor Node status.
  • Editable VQuad node and device script parameters. Control the tests with the turn ON/OFF option
  • Editable File Monitor node parameters and control the application with the turn ON/OFF option


  • Export results and statistics or custom output reports to *.txt or *.xls or *.pdf file formats.
  • Supports Google Maps plotting of Results, VQuad™ Nodes, and Mobile for the available GPS co-ordinates. Plotting can be done while drive testing and also while testing at a location.
  • Customized report generation with result statistics, tabular data, bar graphs, and line graphs.
  • Scheduled report generation for the schedule period and user-specified filters. Reports generated can be shared automatically via Email or SMS.
  • Google Map result and events plotting is enhanced to support  country or region selection


  • Allows any number of filter configurations to be saved
  • Filter any results view based on measurements, and call control conditions
  • Advanced conditional filter criteria for VQT results.
  • Advanced filter criteria to customize the columns in the VQT results view
  • Create criteria to filter results based on GPS co-ordinates
  • Filter NetTest and Mobile results based on the configured test parameters

Components of GL's WebViewer™ Solution

Components of WebViewer™ Solution

Components of WebViewer™ Solution

GL's WebViewer™ solution is a four tier architecture. The first layer consists of GL's VQuad™ which establishes the proper calls or direct connections between the near and far end using a variety of physical interfaces. The File Monitor transfers the degraded (recorded) voice files from the individual VQuad™ nodes to one of several VQT/VBA/EMU systems which are located on the second layer. Each VQT/VBA/EMU applications automatically analyze the degraded voice file and transmit the analytical results to a single central database located at the Data Layer. This third layer provides a means for storing the captured results. The last layer is the Data Access Layer (Application Server) where the data presentation logic is contained. Each of these components is briefly explained below.

Data Layer

An Oracle or MS Access database (user specified) is used to store the analytical measurement results along with all pertinent data associated with the VQuad™/VQT/VBA/EMU/Data/Video Test systems (Call progress events, error events, timestamps, Call ID, location information, Echo Measurements, Data Test Results, Video Test Results, Fax Events, VQT PESQ and POLQA Events). This provides a very flexible and expandable architecture for data storage and data access. The database is accessed in real-time over the web using the WebViewer™.

The DataImport application is co-hosted with the database server running on the Data Layer. It collects the data posted by the probes and then updates the database using the collected data.

Data Layer of the WebViewer™ Solution

Data Layer of the WebViewer™ Solution

Application Server

The WebViewer™ provides an application server for accessing the VQuad™ Call progress events, user-defined error events, delay measurement results, Data Test results, Video Test results, Echo Measurement results, Fax Events and VQT PESQ/ VQT POLQA/VBA E-Model LQ/LQO/WB MOS measurements along with the additional analytical measurements including Call ID information. The results are queried over the internet using any browser-capable device such as desktops, table PCs MAC systems (Mac, iPhone, iPad) or PDAs. The application server is capable of serving the data in real-time or providing historic data based on customer selected filters.

Application  layer of the WebViewer™ Solution

Application layer of the WebViewer™ Solution

Using Application Server

Using any browser-capable-device, you can access all network results from anywhere in the world. When you open the WebViewer™, the following page will be displayed. The WebViewer™ browser can display the VQT PESQ results and ratings, VQT POLQA Events, VBA results including E-Model and ratings, VQuad™ Delay Measurement results (RTD, OWD, SNR, PDD), Echo Measurement results, Data Test results (TCP, UDP, VoIP, Route, HTTP, FTP, DNS, SMS, Email, PhoneInfo, SimInfo, and UEInfo), Fax Events and VQuad™ Call Control events including call failures and error events.

WebViewer™ Main Screen

WebViewer™ Main Screen

Remote Operations

The systems (Command Center, VQuad™, VQT, and File Monitor) that work in conjunction with the WebViewer™ can be accessed or controlled remotely through this web interface.

The various options are available for the users to manually operate and control the systems remotely and start the applications on a selected node, load the test scripts, execute the scripts, and also to stop and exit from the applications remotely.

Remote  Access VQuad™ System

Remote Access VQuad™ System

Command Center (CC) Remote Operations
Command Center Remote Access option includes various operations that enable the users to remotely Start CC Application, Load & Start Super Script, Download Super & Site scripts, and also to Exit the CC application.

VQuad™ Remote Operations
VQuad™ Remote Access option allows users to operate on remote VQuad™ application. Operations include selecting VQuad™ System, Devices, and perform operations like VQuad™ Script Download, Load Master Configuration, Load Call Control Scripts and other commands. Schedule Ready VQuad remote operation transfers the MySchedule.txt file created at the DataImport location to the remote VQuad location and the tests defined in the schedule file are executed at the VQuad™ nodes.

VQT Remote Operations
VQT Remote Access option allows users to remotely operate on VQT application. Operations include Starting and stopping VQT application, and also to Load, Start, Stop auto configurations remotely.

File Monitor Remote Operations
File Monitor Remote Access option allows to Start File Monitor Application, Create Configuration, Start Auto Configuration, and also to Stop Auto Configuration which is located at remote location. Defining Remote Path stores the degraded files transferred from the VQuad™ PC, and the remotely running VQT PC, which are controlled through Webviewer™ browser.

VQuad™ Auto Remote Control

With Admin login, VQuad™ Nodes can be configured with selected scripts and operations such as Load/Run/Stop Master Configuration, Scripts, and Pause Timer scripts to be performed on each of its nodes and devices. The Admin can also authorize any specific user to control the automated VQuad™ nodes.

With User login, the VQuad™ Nodes can be remotely controlled by starting or stopping the configured scripts on the devices and also monitor the node status (such as Idle / Stopped / Loading / Initiating / Running tests).

VQuad™ Auto Remote Console

VQuad™ Auto Remote Console

Customization of VQuad™ Auto Remote Console

Customization of VQuad™ Auto Remote Console

Network Status

Network Status view gives the real-time status of all the VQuad™ probes, connected Mobile Devices, VQT Probes, File Monitor applications, and the Command Center applications in the network.
VQuad™ Network Status screen displays the ‘VQuad™ Probe Status’ and the ‘Devices Script Status’. 

Option to edit VQuad and File Monitor Node parameters are included for easy control of the nodes. Editable VQuad node parameters includes Node Name, GPS co-ordinates (retrieved automatically if GPS receiver is attached to Dual UTA HD or can be user defined, to be displayed in WebViewer Google Maps), VQuad™ PC IP address, Primary and Secondary Central DB IP Addresses configuration for backup and redundancy, and VQuad™ location (Fixed/Mobile) type. VQuad™ node device script status parameters such as the Script Name, Call Type (3G, 4G, LTE, PSTN, & CVoIP), Global Device & Start Variables, FXO & Bluetooth number, and Start/Stop script manually.

File Monitor node status screen displays the Computer Name, IP Address, Primary and secondary VQT Destination IP Addresses to handle network fail-overs, Remote Path, Delete Type, File Type, and the running/ stopped File monitor Status. The editable File Monitor node parameters include Destination IP Addresses, Remote Path, Delete Type, and File Type.

VQT node status screen displays Computer Name, Central DB Primary and secondary IP Address for back-up and redundancy, Version, Test Name, and the Test Status.

Mobile Device Status such as Disconnected, Phone Suspended, Phone Idle, and other conditions along with mobile device information in the network are also displayed.

Real-time  network status of VQuad™ probes

Real-time network status of VQuad™ probes

Mobile Device Node Status

Mobile Device Node Status

VQT Node Status

VQT Node Status

File Monitor Node Status

File Monitor Node Status


Search Criteria

Search Criteria

Using the Search Criteria option, the user may filter the search based on a variety of different criteria including Called Number, Ratings, Measurement Range, and User-Specified Events. The results of the query may be based on a Time Filter with an Auto Refresh option or based on a start/stop time/date.  It is also possible to search through the results/events based on the GPS position. The NetTest results can also be filtered based on the configured PC based NetTest and Mobile NetTest result parameters.

Advanced Search Criteria

Advanced Search Criteria

The Advanced filter criteria option allows VQT PESQ and POLQA parameters to AND or OR the conditions to create unlimited filtering configurations. The pre-defined filter can be loaded or a new filter (search criteria) configuration can be defined and saved.

Columns Setup filter

Columns Setup

Column Setup option helps the user to view the results for the selected VQT columns, and re-arrange the columns as required. The configurations can be saved which supports unlimited filtering configurations.

Send Results to Excel, PDF, Txt Files

The output results option can be used to export any selected test results to a text file, PDF, or Excel. The reports can be even customized using the Custom Report feature.

Results Exported to PDF File

Results Exported to PDF File

Results Exported to Text File

Results Exported to Text File

Results Exported to Excel File

Results Exported to Excel File

Custom Reports

Using WebViewer™, it is now possible to customize report generation with result statistics, tabular data, bar graphs, and line graphs.  Reports can be customized based on a combination of different parameters in Results View, Call Events, and Statistics.  WebViewer™ can generate and export the customized report in either text, excel or PDF formats, while also allow users to view results dynamically on WebViewer™.

WebViewer™ can generate the custom reports with a variety of filtered configurations. All configurations are created and modified directly within WebViewer™ - create a new report or modify existing reports for displaying the user-specified results. Included with Custom Reports is the ability to specify custom Line Graphs.

Additionally, Report Scheduler gives the user the ability to specify when to schedule a report along with the schedule period and user-specified filters. For instance, every Monday schedule a report which includes last 7 days, or schedule a report every morning or once a month. The Scheduler uses the Custom Reports as specified above and outputs as PDF or Excel or other format.  As part of the Report Scheduler, all reports generated can be shared automatically via Email or SMS. So, if desired, every morning you can have an email or SMS with the past day testing performance.

Custom Reports

Custom Reports

Google Maps

Google Maps plotting option is provided to display the GPS co-ordinates of various Results, VQuad Nodes, and Mobile Devices. Results include VQT PESQ, VQT POLQA, NetTests, Call Connect Events, EMU, FAX, and VBA tests. These are differentiated using color codes and text call-outs. Plotting can be done in real-time while drive testing and also while testing at a location.

Google Maps plotting can be customized based on the specific map configuration. The customized map plotting can be further refined by choosing the test parameter such as VQuad™ location, VQuad™ Phone ID, Call Events, Threshold Settings; and other result types.

Within the map, any node result details such as Result type, Device PhoneID, Device Name, GPS Position, and Location of the test result can be obtained. Users can also get the individual device or application status or result statistics.

Google Maps Plotting

Google Maps Plotting

The Google maps Plotting Configurations can be created for the 4 map types (Threshold Settings, VQuad™ Location, VQuad™ Phone ID, and Call Events), and the results available for the results types, and the Phone IDs. The Pin configuration includes the color and the text settings to indicate the Pass and the Fail conditions on the map. 

Google Maps Configuration

Google Maps Configuration

It also includes an option to map the region boundaries of the specific area as per the configurations in the Web Configuration Tool. Selecting the predefined configuration, which highlights the region on the map. Regions can be configured by specifying the location, Lat/Long with radius or Lat/Long boundaries.

Region Mapping
Region Map Configurations
Region Mapping and Configurations

Console View

Console View can be customized to populate the overall VQuad and NetTest results. VQuad consolidated view includes the Average, Min, Max of VQT PESQ, VQT POLQA, Time Delay Measurements, VQuad and Fax Status, and Call Events tabular and graphical display. The NetTest console view can also be customized to display Average, Min, Max of TCP, HTTP, VoIP, UDP, FTP, SMS, Email, DNS results and Battery level & RSSI. The corresponding graph for each of the NetTest types are also displayed.

The Console view can be populated to view only the failed events, for VQuad and NetTest threshold parameter values. The Console view also includes additional support within the individual graphics for zooming and accessing individual result points, or plotting results directly to Google Maps.

NetTest Console View
NetTest Console View
VQuad™ Console View
VQuad™ Console View

KPI & Results

Call Control & Events Supported KPI Graphical Results Tabular Results

Call Events

  • Call Initiation Rate
  • Call Failure Rate
  • Call Drop Rate (can the network sustain the call)
Call process graphics Call events view


  • Voice Quality using POLQA or PESQ
  • Signal and Noise Level Gain
  • Jitter and Clipping
Analysis graphics

Statistics Pie graph Configurations
PESQ result view

POLQA result view

Delay Measurements and Analysis

  • Call Setup Time (PDD in ms)
  • One Way Delay -OWD (ms), and Round Trip Delays - RTD (ms),
  • Signal to Noise ratio -SNR (dBm)
  • Audio Analysis including Power and Frequency
  • Echo ERL (dB), Echo Delay (ms) measurements
  • VBA E-Model Results
Time delay statistics Pie graph Configurations Time delay results view

VBA result view

EMU result view

FAX Testing

  • Fax events on 2-wire FXO / 4-wire analog network
  • Duration(sec), Error, Event, Modem, Starting Speed, Final Speed, Completed Pages, Tx/Rx lines, Bad Lines, Encoding, Resolution, ECM (Error Correction Mode)
Fax events Fax results view

Data Testing KPIs

  • Data Throughput and Effective Speeds
  • Data Delay times for HTTP, FTP, DNS
  • Packet Loss, Packet Retransmit
  • SMS and Email completion times
Email and SMS Nettest graphs Nettest results view

Mobile device info result view

Video Testing KPIs

  • Video Conference MOS
  • Video MOS, Audio MOS, and A/V MOS
  VAC test results view


Item No. Item Description
VQT040 Webviewer™
  VQuad™ Miscellaneous
VQT010 VQuad™ Software (Stand Alone)
VQT280 VQuad™ Probe HD (with Dual UTA HD)
VQT281 VQuad™ Probe HD w/o Dual UTA HD
VQT285 VQuad™ Probe HD Upgrade
VQT601 Mobile Device Controller (MDC) Software
VQT600 VQuad™ NetTest Data Server Solution
VQuad™ Fax Emulation (2 simultaneous ports)
VQuad™ Fax Emulation (8 simultaneous ports)
VQT015 VQuad™ with T1 E1 Call Control
VQT251 Dual UTA HD Next generation Dual UTA with FXO Wideband support
VQT252 Dual UTA HD – Bluetooth Option
VQT442 (cable) Mobile Audio Interface for Smartphones
VQT461 (Cable) Dual UTA HD Smartphone ACC Cable
VQT443 (cable) 3-wire headset interface Adaptor for Smartphones
  VQT and Analysis
VQT002 Voice Quality Testing (PESQ only)
VQT006 VQT w/ POLQA Server license (no limitations)
VQT007 VQT POLQA v3, server license for 20 nodes
VQT008 Voice Analysis Tool (VAT™)
VQT291 vMobile™ - Portable VQT Test Solution
VBA032 Near Real-time Voice-band Analyzer
EMU037 Echo Measurement Utility (EMU) Software