GL Releases Portable T3 E3 T1 E1 Analyzer Unit

Gaithersburg, MD (Vocus) October 8, 2008

GL Communications Inc. announced today the release of a Portable All-in-One T3 E3 T1 E1 Ethernet Analyzer Unit. In a statement to the press, Mr. Jagdish Vadalia, Senior Manager of Product Development, said, ?The size of a small paperback book and weighing only 1.75 lbs, GL's newest T3 E3 T1 E1 Ethernet Analyzer is one of the smallest and lightest analyzer units in the world. The pod when connected to a Notebook PC is capable of capturing two full T3 / E3 data streams, dropping and inserting T1 or E1, full Ethernet analysis, and HDLC, ATM, FR, and PPP Analysis.?

Mr. Vadalia further added, ?GL's T3 E3 T1 E1 Ethernet Analyzer can also be used in conjunction with GL's Laptop T1 / E1 analyzer for individual T1, E1, DS0, and Analog analysis. This analyzer is highly portable and flexible to operate - it can work with a desktop or a laptop PC?. He added, ?Many more such functions are being added to the analyzer that would enrich the capability and utility of the product?.

Interfaces Supported

GL's T3 E3 T1 E1 Ethernet Analyzer comes with a variety of interfaces as shown below:

?T3 or E3 - BNC interface (2 Transmit and 2 Receive ports)

?T1 or E1 - RJ-45 interface (2 Transmit/Receive Ports)

?External Clock: MBX (2 - one each per T3/E3 ports)

?Ethernet Port - For wirespeed Ethernet analysis, remote monitoring, and management

?USB - 2.0 - The USB interface is used to connect the analyzer unit to a Desktop or a Notebook PC for storage, display, and control

Important features:

?Dual T3/E3 Receivers and Transmitters for simultaneous Non-intrusive and Intrusive testing of both eastbound and westbound signals

?Plug and Play to PC Interface through USB 2.0

?Software selectable T3 and E3 interface along with T1 and E1 Drop and Insert

?Simultaneously record (capture) / playback (transmit) two entire T3 E3 signals in framed or unframed modes up to hard disk capacity

?Dual BERT, G.821 Analysis, Error Injection and Alarm Generation

?Monitor T3 E3 signal status, frequency, level, and various frame errors

?Drop / insert T1 E1 signals from both ports

?Flexible clocking - internal, recovered (from T3/E3, T1 or E1) and external

?Transmit externally inserted or internally generated T1 E1 streams into T3 E3

?Protocol testing for ATM, PPP, HDLC, and Frame Relay

?Scripting and Automation through GL's well-known Windows Client Server (WCS) software

?Remote Control through TCP/IP interface

?Monitor / Manage the Analyzer remotely via Ethernet port

Receiver Capabilities:

Line testing and diagnostics: The T3/E3 Receiver can non-intrusively monitor a T3/E3 bit stream, and present a comprehensive diagnostics of PCM impairments and alarm messages in real-time.

De-multiplex T1 or E1 signals: User selected T1 (or E1) channels can be dropped using the T1/E1 input/output interface. Up to two T1 or E1 channels can be dropped from any one of the received T3 or E3 signals.

Capture Entire T3 or E3 Stream: The T3 E3 analyzer can capture (record) two complete T3/E3 streams to the hard drive as a binary file.

Transmitter Capabilities:

Line testing and diagnostics: T3/E3 transmitter can inject errors and alarms as well as do Bit Error Rate (BERT) testing.

Multiplex T1 or E1 signals: Up to two user selected T1 (or E1) channels can be externally inserted using the T1/E1 input/output interface into any one of the transmitted T3 or E3 signal. The inserted T1 or E1 signal can be selectively transmitted through one or more of the T1/E1 transmit channels, or broadcasted through all the

T1/E1 channels. Additionally, the received T1/E1 signal can be looped back and transmitted or the transmitted

T1/E1 signals can be set to carry AIS..

Playback (Transmit) entire T3 or E3 Stream from the PC hard drive: The T3 E3 Analyzer can also transmit (playback) an already captured binary file through the T3/E3 stream.

For a comprehensive understanding of the above product, please visit T3 E3 T1 E1 Ethernet Analyzer web page.

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. Network Surveillance and Monitoring products include Probes for TDM, VoIP, ATM, and Wireless networks.

GL?s Handheld data testers provide convenience, economy, and portability for almost any interface, including RS232, RS422 / RS530, X.21, T1, E1, T3, E3, and many others.

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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GL Releases Enhanced PacketScan? -- IP and VoIP Analyzer Software

Gaithersburg, MD (Vocus) August 12, 2009

GL Communications Inc., announced today the release of enhancements to PacketScan? software - a real-time IP and VoIP analyzer. Speaking to the mediamen, Mr. Vijay Kulkarni, CEO of the company said, ?GL's PacketScan? is a real-time IP and VoIP analyzer that non-intrusively analyzes and captures live IP traffic, and segregates them into SIP / H323 / Megaco / MGCP calls. It also collects statistics, CDRs, detailed protocol traces, ladder diagrams, and a host of other useful information about VoIP calls?. He added, ?Applications include monitoring of IP phones, Gateways, IP Routers, Switches, and Proxies. Its real-time nature makes it an outstanding tool for live monitoring of VoIP traffic as well as long-term traffic statistics gathering?.

Mr.Kulkarni, further added, ?PacketScan? can also monitor, report, analyze, and capture calls for infinite time, limited only by the finite space of your hard disk or network hard drive!?.

Summary of the New Features

?Performance

PacketScan? breaks ground with high density performance. It can now handle up to 1300 simultaneous calls with bi-directional RTP traffic.

?MEGACO Calls Summary

MEGACO is a media gateway control protocol, which is used between Media Gateway and Media Gateway Controller (Call Agent). Megaco/H.248 uses a series of commands to manipulate terminations and contexts using events, signals and other descriptors. PacketScan? has been enhanced to provide a summary of MEGACO calls. Calls are classified as active, completed, or failed.

Summary of each call contains signaling information such as Physical Termination, Ephemeral Termination, Context ID, Call Start Time, Call Duration and information about media sessions associated with it. Media sessions provide detailed information such as codec used, MoS and R-Factor scores, jitter, delay, total number of packets received, missing, duplicate and out of order packets counts and percentage.

?Call Graph

Ladder diagrams display protocol message sequences. They also display the decoded information of the selected message as shown in the above diagram.

?MEGACO Statistics

MEGACO Statistics provides all possible statistics about MEGACO calls in the network such as total, active, completed and failed calls. It also provides the total number of MEGACO Add, Modify, Subtract, AuditValue, and Audit Capability message counters. These counters are updated in real time.

?Registration Summary

In PDA Summary View the user can see a detail summary for all registration request (SIP) attempts. Each registration summary contains information such as User Agent being registered, Registrar Address, current status of the registration, registered time, registered duration, expiry time and remaining time. The below diagram provides the details of registration summary.

?Registration Graph

Displays ladder diagram for the selected registration attempt. It also displays the decoded information for the selected SIP message on the ladder diagram as shown in the above diagram.

?Registration Statistics

The registration information includes counters for total, active, completed and failed registration attempts. And also counters for total registration and de-registration frames.

?Active Registration Graph

This graph displays the total number of active registrations over a period of time.

?Triggers and Actions

In Triggers and Actions, there is addition to the list of call parameters to add more feasibility to filter the calls. Some of them are: Session Request Delay, Session Disconnect Delay, SIP Error Codes and more.

Other Features Include:

?Monitor progress of up to 1300 simultaneous calls with bidirectional RTP traffic

?Supported protocols - SIP (SIP Session Initiation Protocol RFC 2543 and RFC 3261), Megaco RFC 3525, Megaco RFC 3015, MGCP, H323/H225, and RTP

?Supports decoding of MAC, IP, SIP, UDP, TCP, RTP, RTCP, T.38 (Fax over IP), and SMPP

?Call capturing based on call agents or triggered actions such as MOS, R-factor, jitter, packet loss, duplicate packets, or called / calling numbers (SIP/H323)

?Full RTP Analysis with audio capture/playback supported for all common codecs

For comprehensive information on the analyzer, please refer to PacketScan? web page.

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.

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