GL Announces Enhanced Tools to Classify Traffic and Protocols over T1 E1 Lines - Latest Press Release from GL Communications Inc

Gaithersburg, Maryland, USA - GL Communications Inc announced today its enhanced Protocol Identifier and Traffic Classifier tools to classify traffic and protocols over T1 E1 Lines.

Speaking to reporters, Mr. Vijay Kulkarni, CEO of the company said, "GL's Protocol Identifier and Traffic Classifier applications are ideal tools for network engineers for understanding, analyzing, and performing traffic engineering on T1 E1 networks."

He added, "GL's Protocol Identifier application can identify and classify various protocols carried over T1 or E1 lines. It is capable of detecting protocols such as ISDN, ATM, HDLC, MTP2, LAPD, SS7, PPP, GSM, GSM Abis, TRAU, and Frame Relay. The timeslots and or sub-channels within timeslots are also identified and after which, a detailed analysis can be carried out by individual Protocol Analyzers. This application is helpful in identifying traffic types at a concentration point, DSX patch panel, or multiplexed facility. "

"A companion product called Traffic Classifier is an application that can analyze different types of voiceband traffic such as voice, fax, data, tones (dial, ring etc) carried over T1 E1 lines. Traffic Classifier uses various identifying schemes depending on the country of selection and classifies the traffic, based on the dialing tones stipulated for that country."

Mr. Kulkarni further added "Both Protocol Identifier and Traffic Classifier applications work on Windows® 32-bit and 64-bit Operating Systems. The applications can be accessed either directly or remotely."

Important Features of Protocol Identifier

Ability to non-intrusively characterize the protocols on T1 E1 lines in real-time

Classification of HDLC based protocols such as ISDN, SS7, PPP, Frame Relay, and GSM

Graphical view displays the timeslots and sub-channels of the identified protocols

Statistical view displays the different protocols with the details of port, timeslots and sub-channels

Stream statistics view shows the count of total number of timeslots, sub-channels, and hyper-channels used by each protocol

Provides an option to log the protocol detected with device and channel information into a text file

Supports filtering to display the unique selected protocol.

Supports custom configuration of the colors to easily distinguish protocols.

Important Features of Traffic Classifier

Ability to non-intrusively monitor voiceband traffic on a T1 E1 lines in real-time and offline modes

Sixteen traffic types are classified, which include tones (dial, ring, busy), Voice/Speech, Data and Fax Signaling, Dialing digits (DTMF, MFR1, MFR2F, MFR2B) etc.

Data and fax modulations such as V.22, V.34, V.29, V.32, and V.27

Monitor T1 E1 lines locally or remotely through TCP/IP connection

Analyze T1 E1 traffic and graphically display the results as a strip-chart

Result options can also be saved to a file for extended periods

Off-line (playback) feature can playback or fast forward previously recorded results

Codecs supported - µ-Law, A-law, and linear

Four algorithm options (Linear, quadratic, hybrid and hybrid filtered) to fine-tune the classification results


Snapshot: Obtain a real-time snapshot of activities over T1 E1 lines

Surveillance: Monitor all signaling and traffic events on all the timeslots/sub-channels simultaneously on multiple T1 E1 lines. You can also do surveillance for extended periods by recording the classification results for days, weeks or months at a time

Maintenance: Helps technicians to quickly identify any content on the T1 E1 lines

Equipment Manufactures and Equipment Vendors: Perform a pre-deployment analysis of a network so as to provide an optimized solution for your customers

R & D, Traffic Engineering

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 Communications has over the years worked with major telecom equipment vendors (EVs) and system integrators to meet the testing requirements arising at various stages of telecommunications product development life cycle.

With its proven expertise of over 25 years, GL has a comprehensive suite of telecom testing solutions to verify and ensure 'quality and reliability' of variety of telecom networks including Wireless, and high-speed fiber optic lines.

GL's test tools range from simple PC-based software test tool to all-encompassing hardware units with futuristic expansion capabilities.  GL's test solutions cover wide array of networks – 4G (LTE), 3G, IP, Ethernet, T1, T3, E1, E3, OC-3/STM-1, OC-12/STM-4, and traditional PSTN networks.

GL's tools are widely used by the telecommunication industry for conformance testing, automated stress/load testing, performance testing, remote accessibility, centralized web-based control and analysis, fault testing and analysis, and customized testing.

For more information about GL's complete line of products,


Shelley Sharma

Phone: 301-670-4784 ext. 114



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