GL Announces Echo, Delay, and Voice Quality Analysis of Voice Calls in VoIP, TDM, 2Wire

GL Communications Inc. announced today the release of its newest Echo Measurement Utility Software(EMU) that measures Echo Path Delay and Echo Return Loss of voice calls. Speaking to reporters, Mr. Robert Bichefsky, Senior Manager, said, "Echo can be as simple as sidetone, or more complex just as line, and acoustic echo. The EMU when combined with GL's VQuad, Dual UTA, T1 E1 Analyzers, or Voiceband Analyzer, additional voice quality metrics just as round trip delay, voice quality, and noise can as well be measured".

Mr. Bichefsky explained, "To provide a comprehensive assessment of voice quality irrespective of network type, GL has combined various tools at the same time into one platform consisting of VQuad, Dual UTA, USB T1 E1, and WEBViewer. This platform provides the ability to make VoIP (Voice over Internet Protocol), TDM, and Mobile calls from any fixed or mobile location. All interface flexibility is provided within the Dual UTA and USB T1 E1 Analyzer. To boot, VQuad provides algorithms for signaling, voice transmission, and voice quality assessment. WEBViewer provides the central point where voice metrics are stored and displayed through a WEB interface".

Founded in 1986, GL Communications Inc. is a leading supplier of test, monitoring, and analysis equipment for TDM, Wireless, IP 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 VoIP and IP products generate / analyze thousands of calls and traffic simultaneously with traffic types just as frames, packets, voice files, digits, video, tones, noise, and fax. Nearly all codecs are supported including G.711, G.729, AMR, EVRC-A,B,C, GSM, iSAC, and many more. Additional features include visual analysis, real-time listening, and recording. The product line as well includes Ethernet / IP Testing capability that simulates and checks frame transport and throughput parameters of Ethernet and IP networks, including delay, errors and other impairments.

GL's Voice Quality Testing product line complements all of GL's products. Using ITU-standard algorithms, GL's VQT provides a widely accepted solution for assessing voice quality in the telecom industry. Voice Quality Testing across multiple networks are all available.

GL's Wireless Products perform protocol analysis and voice quality assessment on GSM, CDMA, UMTS, and LTE (Long Term Evolution, latest standard in the mobile network technology) networks. Connections can be made to any wireless phone with automated call control, GPS mapping and real-time signal measurements.

The broadest range of simulation

GL's Echo Canceller testing solutions provide the broadest range of simulation and analysis, including line and acoustic echo. GL's compliance testing per G.168. G.167, and P.340 across TDM, IP, VoIP and Wireless networks is widely accepted in the industry.

GL's wireless VQT solutions help assessing impairments to voice quality just as poor mobile phone quality, voice compression and decompression algorithms, delay, loss and gain in speech levels, noise, acoustic and landline echo, and other distortions are easily assessed and accurately measured.

Wide variety of communications facilities

GL's Handheld data testers can test a wide variety of communications facilities and equipment including T1, fractional T1, E1, fractional E1, T3 and E3 modems, multiplexers, CSU, DSUs, T1 CSUs, DTUs, NTUs and TIUs and more. The testers provide convenience, economy, and portability for nearly any interface, including RS232, RS-422, RS-530, X.21, T1, E1, T3, E3, and many others.

GL's Network Surveillance and Monitoring products include Probes for TDM, IP, VoIP, ATM, and Wireless networks. An open standards based approach provides a scalable, feature rich, real-time access to network characteristics. Centralized or distributed access, efficient transport and database loading allow compatibility with 3rd party and standards based monitoring systems.