GL Communications Inc.
GL Communications Inc. has over 30 years of experience in the telecommunications industry providing equipment and consulting services. GL has a comprehensive suite of testing solutions to verify network performance in various telecom networks including wireless, fiber optic and traditional land line networks.
- +1 (301) 670-4784
- (301) 670-9187
- info@gl.com
- 818 West Diamond Avenue
Third Floor
Gaithersburg, MD 20878
United States of America
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Product
Protocol Analysis
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GL's protocol analyzer provides monitoring a communication link in accordance with industry protocol standards by non-intrusively tapping the network under test. The simple framework of the protocol analysis software helps you easily identify the improper sequence of protocol messages, and filter out frames causing the protocol violation.
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Product
VoIP Testing
VQuad™
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Testing on the extreme end-point of a VoIP softphone network has become a priority for many service providers. This method of testing represents what an end user is actually experiencing. Voice quality testing within VoIP networks is growing; a major concern is testing VoIP softphones that will be used with VoIP networks. GL’s VQuad™ with VoIP option along with Voice Quality Testing (VQT PESQ) software provides the ability to perform manual or automated Wideband audio tests using HD codecs on the VoIP network.
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Product
IP / VoIP Analysis & Simulation
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GL offers high density Ethernet/IP tester variant which includes mTOP™ 1U/2U rack mount enclosures within which PacketExpert™ portable USB units are stacked to provide high density GigE ports form factor solution for testing GigE switches, routers and network conditions.
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Product
Fax/ Modem Testing
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To successfully deploy fax services requires extensive network design, test and traffic engineering. Test equipment can prove valuable in this process, if it can: Generate and receive fax signals in bulk over wired and wireless networks, monitor and distinguish fax signals in real time for traffic engineering and network design purposes, and analyze fax signals after capture for troubleshooting failed or poorly handled calls.
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Product
Analog Platforms
(T1/E1/T3/E3/OC-3/OC-12/STM-1/STM-4)
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Almost all T1 E1 T3 E3 Testers can be accommodated into rack-based units. Multiple rack units can be stacked together for greater scalability. Shown below is a rack based tProbe™ T1 E1 / T3 E3 Analyzer unit, and a Channelized T3 E3 Analyzer unit supporting 6 T3s (6 * 672 DS0s). Such customized rack serves the purpose of handling multiple communications lines and test complex functionalities.
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Product
Digital And Analog Call Simulation
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GL’s T1 E1/Analog Test Suite supports analysis and emulation of legacy protocols (MFCR2, E&M, SS1/SS4, SS5, Voice Call Signaling, 2-wire Call, SF Signaling (DTMF)) applicable to Federal Aviation Administration "FAA" within their National Airspace System "NAS" Ground-to-Ground Air Traffic Control Network and Voice System (NVS) to Analog Interphone.
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Product
IP Fax/ Modem Testing
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To successfully deploy fax services requires extensive network design, test and traffic engineering. Test equipment can prove valuable in this process, if it can: Generate and receive fax signals in bulk over wired and wireless networks, monitor and distinguish fax signals in real time for traffic engineering and network design purposes, and analyze fax signals after capture for troubleshooting failed or poorly handled calls.
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Product
Testing LTE, And VoLTE
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Long Term Evolution (LTE) is the so called 4th Generation (4G) mobile standard in the rapidly evolving mobile technologies. Its distinguishing feature is an all IP infrastructure and significantly greater air interface bandwidth to the mobile handset. It was developed as an enhancement to the existing 3G UMTS System (Universal Mobile Telecommunications System) to provide users enhanced mobile radio and internet access.
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Product
Multi-Functional Ethernet Test Solution
PacketExpert™
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PacketExpert™ 10GX is a comprehensive Ethernet/IP test solution supporting industry standard functionalities including wirespeed bit error rate testing (BERT), RFC 2544 / Y.1564 / RFC 6349 tests, packet capture, event-driven triggers and actions, traffic playback, impairment generation, stacked VLAN/MPLS tests, and many others.
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Product
Communication Network Lab (5G, 4G, 3G, 2G, IP, TDM)
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GL’s End-to-End Wireless Network Simulation Test Suite provides you an advanced full-fledged “Live Network” at your company premises in any customized package to suit test requirements.
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Product
Network Surveillance System
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The network backbone contains a wealth of information that can be monitored and collected to support diagnostic, troubleshooting, and fraud prevention activities. Surveillance of network characteristics is becoming more important than ever before. Few important aspects of network surveillance include, Performance Monitoring, Security, Fraud Prevention, Physical Layer monitoring, Billing Verification, Remote Protocol Analysis, Failure Prediction, Traffic Engineering, Call Quality Monitoring and Troubleshooting.
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Product
OC-3/STM-1 And OC-12/STM-4 Analysis And Emulation Card(w/ GigE And USB 2.0)
LightSpeed1000™
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Voice, data, and video traffic is exploding as smartphones, IP TV, video streaming, and "cloud" based services takeoff. A majority of the backbone transport for these applications continues to be SONET and SDH optical transmission networks. A dominant protocol for IP transport is PoS (Packet over SONET) and another is ATM (Asynchronous Transfer Mode). Both schemes are packet based, with ATM using fixed size packets of 53 bytes called "cells", and PoS using variable packet sizes closely matching to Ethernet frames. GL's LightSpeed1000™ hardware platform (PCIe Card and USB Pod) is capable of OC-3/12 and STM-1/4 wire-speed processing on quad optical ports for functions such as wire-speed recording and wire-speed playback of Unchannelized and Channelized ATM, PoS, and RAW Traffic.
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Product
Rack Based Test Solutions
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Most equipment manufacturers and large enterprises prefer rack-based test tools as they are compact and higher density form factor solution for testing, monitoring, and troubleshooting network conditions. GL’s Multiple TDM Optical and Packet (mTOP™) rack enclosure can house any combination of USB based test equipment which are easily deployed and securely fixed to an equipment rack to provide extraordinary scalability to test switches, routers and end-to-end networks. These rack based platforms incorporates the basic test unit along with the necessary PC hardware, Windows® 10 64-bit operating system and remote accessibility via scripting and remote desktop. There are no moving parts with the unit, so reliability and longevity are integral. GL’s latest mTOP™ Probe stand-alone hardware variant is an all-in-one self-contained test instrument. The mTOP™ Probe can include any of the multiple TDM Optical and Packet interfaces USB device combined with the PC into one single box. The comprehensive mTOP™ Probe hardware unit is designed for easier portability and convenient for field testing which incorporates the testing features for multiple interfaces along with necessary PC hardware in a single box. GL’s USB based test equipment - PacketExpert™ (Ethernet), tProbe™ (T1/E1), USB T3/E3 (TDM), Dual UTAs (Analog/Wireless), and LightSpeed1000™ (SONET SDH) to support multiple interfaces in a compact rack space or included in a portable Probe unit.
