The system utilizes three widely accepted algorithms in the measurements of voice quality over all types of networks including Wireless, ATM, VOIP, PSTN, and T1/E1. The algorithms supported by VQT include Perceptual Evaluation of Speech Quality (PESQ LQ/LQO/WB) per ITU-P.862.1/P.862.2, PAMS per ITU-P.800, and PSQM/PSQM per ITU- P.861.
Gaithersburg, MD (PRWEB) June 21, 2008
GL Communications Inc. announced today the release of Improved Voice Quality Testing Solutions (VQT) Application. Speaking to the media, Mr. Rob Bichefsky, Senior Manager of Product Development at GL, said, "VQuad™ with Voice Quality Testing (VQT) software provides a single box solution to automatically establish calls (PSTN, VoIP, Wireless, T1/E1), send/record voice over the established call, and perform voice quality analysis on the recorded voice files. Up to 8 fully independent tests using different interfaces can be executed simultaneously." He added, "The system utilizes three widely accepted algorithms in the measurements of voice quality over all types of networks including Wireless, ATM, VOIP, PSTN, and T1/E1. The algorithms supported by VQT include Perceptual Evaluation of Speech Quality (PESQ LQ/LQO/WB) per ITU-P.862.1/P.862.2, PAMS per ITU-P.800, and PSQM/PSQM per ITU- P.861."
Mr. Bichefsky further added, "Manual or fully automated measurements are easily conducted. Important features supported are automated call control, path confirmation, and call progress logging (failed calls, dropped calls...). The system works as follows: As each voice file is recorded at the destination, the VQT application automatically detects the completion, transfers the files to where the VQT application (over LAN or WAN) is located, and applies the required measurement algorithms against the degraded voice files. The measurement results are reported both locally and remotely through NetViewer™ and / or web based VQT WebViewer™ applications."
Other important applications of the VQT Product:
•Indoor Tracking System (ITS)
•VQuad™ T1E1 Support
•Email Alert Support
•VQT PESQ WB Support
For comprehensive understanding of the application, please visit: Voice Quality Testing Solutions (VQT) Application webpage.
About GL Communications Inc
Founded in 1986, GL Communications Inc. is a leading supplier of test, monitoring, and analysis equipment for TDM, Wireless, and VoIP networks. Unlike conventional test equipment, GL's test platforms provide visualization, capture, storage, and convenient features like portability, remotability, and scripting.
GL's TDM Analysis & Emulation line of products includes T1, E1, T3, OC-3, STM-1, analog four-wire, and analog two-wire interface cards and solutions. Capabilities include voiceband traffic analysis and emulation across all traffic types (voice, digits, tones, fax, modem), all protocols (HDLC, ISDN, SS7, CAS, GSM, GPRS, CDMA), and with capacities up to thousands of channels.
GL's VoIP products generate / analyze thousands of calls simultaneously with traffic types such as voice files, digits, tones, noise, and fax using G.711, G.729, AMR, EVRC, and GSM codecs. Additional features include visual analysis, real-time listening, recording, and voice quality assessment using ITU algorithms PAMS, PSQM, and PESQ.
GL's Wireless Products perform protocol analysis and voice quality assessment on GSM, CDMA, UMTS, and CDMA 2000 networks. Connections can be made to any wireless phone with automated call control, GPS, mapping software, and real-time signal measurements.
GL's Echo Canceller testing solutions provide the broadest range of simulation and analysis, including compliance testing per G.168 and G.160.
GL's Network Surveillance and Monitoring products include Probes for TDM, VoIP, ATM, and Wireless networks. An open standards based approach provides a scalable, feature rich, real-time access to network intelligence. Centralized or distributed access, efficient transport and database loading allow compatibility with 3rd party and standards based monitoring systems.
For more information about GL's complete line of products,
Phone: 301-670-4784 ext. 114
E-mail: info @ gl.com
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