Gaithersburg, Maryland, USA - April 14, 2010 - GL Communications Inc., announced today the release of its System-Wide Network Testing Solutions for various interfaces including Mobile, Bluetooth®, 2-Wire Analog FXO, 4-Wire Balanced Analog, Phone Handset, PTT Radio, VoIP SIP, T1/E1 PRI/CAS. Speaking to the press, Mr. Robert Bichefsky, Senior Manager at GL said, "Voice quality, signaling methods, and delay vary with each type of network - wireless, PSTN, or VoIP. An end to end network test system that can easily interface to each network type and automatically and centrally perform vital measurements is desirable. And GL has just such a solution".

He added, "GL's system consists of individual probes, fixed and mobile, remotely controlled, and automated through scripts and schedules. All results are automatically cataloged and easily accessed by a standard web browser. Measurements such as call failures, voice quality, delay, and echo are made for each and every call. The data is centrally available and accessible from a single location with user friendly filtering and querying capabilities".

Mr. Bichefsky further elaborated and told, "As shown below in the picture, GL's solution deploys intrusive probes that connect to any interface, and these intrusive probes run GL's VQuad™ software. Non-intrusive probes may also deployed at various points within the VoIP and TDM networks. All results associated with the intrusive and non-intrusive nodes are automatically transferred to a central location where analysis applications, databases, and a Command Center provide for automated operation, email alerts, and a web server. Users may access the command center and databases via a standard web browser".

He added, "GL's WebViewer™ is a web based browser and one can easily and remotely connect to the central database over any internet connection. And it supports querying the central database and includes advanced search criteria such as time/date range, phone number, measurement threshold values, and call progress events".

About GL Communications Inc

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 TDM Analysis & Emulation line of products includes T1, E1, T3, E3, OC-3, STM-1, analog four-wire, and analog two-wire interface cards, external portable pods, and complete system solutions. Capabilities include voiceband traffic analysis and emulation across all traffic types (voice, digits, tones, fax, modem), all protocols (ISDN, SS7, GR-303, Frame Relay, HDLC, V5.X, ATM, GSM, GPRS, etc.), and with capacities up to thousands of channels.

GL's VoIP and IP products generate / analyze thousands of calls / traffic simultaneously with traffic types such as frames, packets, voice files, digits, video, tones, noise, and fax using G.711, G.729, AMR, EVRC, GSM and a range of other codecs. Additional features include visual analysis, real-time listening, and recording. The product line also 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 (VQT) product line complements all of GL's products. Using ITU-standard algorithms (PAMS, PSQM, and PESQ), GL's VQT provides a widely excepted solution across the telecom industry. Voice Quality Testing across multiple networks (T1, E1, T3, E3, OC-3, VoIP, Wireless, and Landline) are all available.

GL's Wireless Products perform protocol analysis and voice quality assessment on GSM, CDMA and UMTS networks. Connections can be made to any wireless phone with automated call control, GPS mapping 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 across TDM, IP, VoIP and Wireless networks. GL's wirelss VQT solutions help assessing impairments to voice quality such 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.

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 almost 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 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,

Contact:

Shelley Sharma
Phone: 301-670-4784 ext. 114
E-mail: info@gl.com

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