Press Release: GL's Handheld Portable Test Instruments
Gaithersburg, Maryland, USA - November 9, 2009 - GL Communications Inc. announced today the
availability of Hand Held Portable Test Instruments. Speaking to the press, Mr. Robert Bichefsky, a Senior Product
Manager at GL said, "GL's hand held test instruments: LinkTest™ SINGLE, LinkTest™ SINGLE+ and
LinkTest™ DUAL are simple and easy to use bit error rate testers for almost any interface". He added,
"These units can test a wide variety of digital interfaces such as T1, E1, T3, E3, as well as asynchronous and
synchronous data interfaces such as RS 232, RS 422, V.35, and X.21".
Mr. Bichefsky further added, "These Hand Held Test Instruments are designed to fulfill the requirements of a
broad range of applications that may be used to test data communications equipment, networks, systems and
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
GLís 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.
GLís 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.
GLís 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.
GLís 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. GLís 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.
GLís 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.
GLís 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,
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