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

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 ™ Command Center  Network Topology  File Monitor Utility  System Highlights  VQT WebViewer ™  System Components / Hardware  Voice Quality Statistics  Voice Quality Test Software  Remote Client NetViewer ™  Distributed VQuad ™ Nodes  Other Solutions for Intrusive VQT 2

Network Topology 3

Hardware Platforms 4

System Highlights • 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. 5

System Components/Hardware 6

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 7

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 8

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 9

Voice Quality Testing (VQT) 10

Centralized Analog Voice Quality Testing 11

Voice Quality Test Software 12

VQT Application • 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 13

Auto Measurement • 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 14

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 15

WebViewer ™ (Web Based Client for Voice and Data Quality Testing) 16

VQT WebViewer ™ 17

VQT WebViewer™ Records Accessible remotely via browser based clients  Database stores the real-time and historic data collected  18

Voice Quality Statistics 19

Network Status Displays status of all the VQuad ™ probes, Mobile Devices, VQT, and File Monitor application status, also the VQuad ™ device script running status. 20

Search Filter Criteria 21

NetTest Graphics 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) 22

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. 23

Configuration for Result & Statistics Display 24

Automated Script Samples • SuperScript – ➢ Start SiteScript(1), SiteScript(2), SiteScript(3)  Scheduler – ➢ Pause 20 min (run time) ➢ Run SuperScript(1) at 9am ➢ Stop SiteScript(1), SiteScript(2), ➢ Stop SuperScript(1) at 159pm SiteScript(3) ➢ Run SuperScript(2) at 2am ➢ Pause 5 min (off time) Stop SuperScript(1) at 559pm ➢ ➢ Run SuperScript(1) at 6pm ➢ Start SiteScript(4), SiteScript(2) ➢ Stop SuperScript(1) at 859am ➢ Pause 30 min (run time) ➢ Stop SiteScript(4), SiteScript(2) ➢ Pause 3 min (off time) 25

Automated Script Samples…  SiteScript – • CallControlScript - ➢ Start CallControlScript(1) ➢ Continuous Run ➢ Pause 5 min (run time) ➢ Start AFT(1) Local ➢ Stop CallControlScript(1) ➢ Start AFT(1) Remote ➢ Place Call ➢ Pause 1 min (off time) ➢ Perform RTD ➢ Start CallControlScript(2) ➢ Disconnect Call ➢ Pause 8 min (run time) ➢ Stop CallControlScript(2) ➢ Pause 1 min (off time) 26