VQuad 818 West Diamond Avenue - Third Floor, Gaithersburg, MD - - PowerPoint PPT Presentation

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VQuad 818 West Diamond Avenue - Third Floor, Gaithersburg, MD - - PowerPoint PPT Presentation

Mar 27, 2024 223 likes •507 views

Intrusive Network Voice Quality Testing (VQT) using VQuad 818 West Diamond Avenue - Third Floor, Gaithersburg, MD 20878 Phone: (301) 670-4784 Fax: (301) 670-9187 Email: info@gl.com 1 1 Website: http://www.gl.com Index VQuad

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818 West Diamond Avenue - Third Floor, Gaithersburg, MD 20878 Phone: (301) 670-4784 Fax: (301) 670-9187 Email: info@gl.com Website: http://www.gl.com

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Intrusive Network Voice Quality Testing (VQT) using VQuad™

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Index

 Network Topology  System Highlights  System Components / Hardware  Voice Quality Test Software  Distributed VQuad™ Nodes  VQuad™ Command Center  File Monitor Utility  VQT WebViewer™  Voice Quality Statistics  Remote Client NetViewer™  Other Solutions for Intrusive VQT

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Network Topology

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Hardware Platforms

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  • VQuad uses the File Monitor to transfer all degraded voice files automatically the VQT for measurement and

analysis.

  • The VQuad and VQT results are automatically transferred to the Central Database via TCP/IP. If the

Connection fails, the results are saved to local database until the connection is re-established.

  • VQT WebViewer™ provides query and result display, Network status, and remote operation of all nodes within

Network from a Web based application.

System Highlights

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System Components/Hardware

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Automated QoS Testing of Analog Network

Connectivity – 2-Wire FXO, 4-Wire Balanced I/O, HSET Interfaces on Dual UTA HD Devices – Analog Phones, Next Generation Gateways, PBX, ATAs over PSTN network

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Automated Testing of VoIP (SIP) Interface, Digital VoIP Phones,VoIP Softphones

Connectivity – Internal SIP cores within VQuad™ (SIP and H.323 Signalling - Does not require Dual UTA HD), 4-wire Balanced I/O, HSET Interfaces on Dual UTA HD Devices – VoIP Phones, Soft Phone, HATS

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Automated Testing of TDM Network

Connectivity – T1/E1 Interface facilitated through GL’s T1/E1 Analyzer Hardware (ISDN and CAS Signalling - Does not require Dual UTA HD) Devices – Digital Phones, PBX, Media Gateways

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Voice Quality Testing (VQT)

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Centralized Analog Voice Quality Testing

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Voice Quality Test Software

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  • Supports ITU Standards (POLQA, PESQ LQ/ LQO / WB, PAMS, & PSQM (+))
  • Auto-Measurement Capabilities
  • Detailed Results / Statistics
  • Criteria Rating System
  • Remote Access Capabilities
  • Delay (One-Way or Round Trip)
  • Jitter (Min, Max, Average per Utterance)
  • Clipping (front, back, all)
  • Noise/Signal Levels (Activity, Peak, etc.)
  • PESQ/Delay per utterance
  • Impairment Factor (Ie) measurement

VQT Application

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  • Automatically analyze the degraded files using GL VQT

Software

  • Detailed results including Jitter (min / max / avg), Clipping

(front/back/all), Latency, and Noise / Signal Measurements (activity / peak)

  • VQT uses the File Monitor to perform automated

measurements on remote locations

Auto Measurement

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File Monitor Utility

  • Runs on all VQuad™ system automatically

sending the Degraded voice files to the central location via TCP/IP.

  • Operates in automatic mode
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WebViewer™ (Web Based Client for Voice and Data Quality Testing)

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VQT WebViewer™

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VQT WebViewer™ Records

Accessible remotely via browser based clients

Database stores the real-time and historic data collected

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Voice Quality Statistics

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Network Status

Displays status of all the VQuad™ probes, Mobile Devices, VQT, and File Monitor application status, also the VQuad™ device script running status.

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Search Filter Criteria

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Graphics

Call Process, Analysis, and NetTest graphic display options. Calls in Process - Placing Calls, Incoming Calls, Call Duration, and Error Events Analysis results - VQT PESQ, Time/Delay Measurements, & FAX Events NetTest graphics for PC based and mobile devices (SMS and Email)

NetTest Graphics

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Remote Access

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

Various options are available to operate and control the systems remotely such as Start the application, Configure by loading the required scripts, Executing, and also to Stop and Exit from the applications.

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Configuration for Result & Statistics Display

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  • SuperScript –

➢ Start SiteScript(1), SiteScript(2), SiteScript(3) ➢ Pause 20 min (run time) ➢ Stop SiteScript(1), SiteScript(2), SiteScript(3) ➢ Pause 5 min (off time) ➢ Start SiteScript(4), SiteScript(2) ➢ Pause 30 min (run time) ➢ Stop SiteScript(4), SiteScript(2) ➢ Pause 3 min (off time)

 Scheduler – ➢

Run SuperScript(1) at 9am

➢

Stop SuperScript(1) at 159pm

➢

Run SuperScript(2) at 2am

➢

Stop SuperScript(1) at 559pm

➢

Run SuperScript(1) at 6pm

➢

Stop SuperScript(1) at 859am

Automated Script Samples

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 SiteScript –

➢ Start CallControlScript(1) ➢ Pause 5 min (run time) ➢ Stop CallControlScript(1) ➢ Pause 1 min (off time) ➢ Start CallControlScript(2) ➢ Pause 8 min (run time) ➢ Stop CallControlScript(2) ➢ Pause 1 min (off time)

Automated Script Samples…

  • CallControlScript -

➢ Continuous Run ➢ Start AFT(1) Local ➢ Start AFT(1) Remote ➢ Place Call ➢ Perform RTD ➢ Disconnect Call