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Press Release: GL Announces the Release of Enhanced TDM Analysis Products

Gaithersburg, Maryland, USA - January 25'th, 2007 - GL Communications Inc., announced today the release of their enhanced TDM Analysis Products. Briefing to the media about the TDM products and platforms, Mr. Vijay Kulkarni, CEO of the company said, "GL's field-proven Ultra T1/E1/T3/OC-3 cards are used as the hardware platform for PC-Based and Laptop-Based testing equipment. GL's Analysis software provides customers with a wide range of telecommunications testing options, including: call and signaling analysis (DTMF, MF, MFC-R2, etc.), protocol analysis (ISDN, SS7, GR-303, Frame Relay, HDLC, V5.X, ATM, GSM, GPRS, etc.), G.168 echo cancellation testing, BERT testing and much more".

Mr. Kulkarni added, "GL's TDM Analysis Products: Ultra T1/E1 analyzer, portable USB based T1/E1 analyzer, T1/E1/J1 intrusive or monitoring switch, and OC3-STM-1 ultra card are versatile and widely accepted products in the telecom industry."

GL's versatile products and platforms for TDM testing and analysis

  • Ultra T1 or E1 Analyzer

    The Ultra T1 or E1 Analysis Cards (PCI) plug into any PC and convert it into a complete T1 and E1 test platform. The Ultra Cards are available with either a single or a dual interface. A wide ranging set of software applications are available to meet your particular testing needs. To learn more about this product, click here

  • Portable USB T1/E1 Analyzer

    GL's new USB based T1 E1 Analyzer is the world's most powerful, full featured, and complete BERT, voiceband, data, signaling, and protocol analyzer available on the market. It can perform analysis and emulation of various signal types including voice, digits, and tones; various protocols including HDLC, ISDN, SS7, CAS, Frame Relay, GSM, GPRS, CDMA, and UMTS. In addition, convenient features are available like portability, USB friendly interface to a PC, remotability, and scripting. To learn more about this product, click here

  • T1 E1 J1 Intrusive/Monitor Switch

    The T1 E1 J1 Switch provides non-intrusive failsafe monitoring and intrusive test and diagnostic capability for up to 8 full duplex T1, E1, and J1 lines. The unit provides two RJ-48c connectors for a thru connection for equipment and line connections and a Rj-48c monitor connector for monitoring both directions of a full duplex high-speed line. To learn more about this product, click here

  • OC-3 / STM-1 Ultra Card

    The Ultra OC-3 / STM-1 card (PCI) plugs into a PC expansion slot for analyzing, testing, simulating, and monitoring OC-3 and STS-1 signals. The Ultra OC-3 / STM-1 card may be used in conjunction with GL's Ultra T1 Card, Ultra E1 Card and Ultra T3 Card in the same PC to provide a complete OC-3 / STM-1, STS-1/STM-0, DS3, DS1, E1 and DS0 testing solution. To learn more about this product, click here

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,


Shelley Sharma
Phone: 301-670-4784 ext. 114

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