GL Conveys its EC Compliance Testing Solution Per G.168 Using Manual Methods

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GL Communications Inc.conveyed today the availability of its Echo Canceller Compliance Testing Solutions Per G.168 using manual methods.

Echo Canceller Compliance Testing Solutions Per G.168

GL's Manual Test Suite for testing compliance of ECs with G.168 provides the ultimate flexibility for almost any type of network environment and configuration including: Conventional Telephone, Satellite connectivity,and Wireless Networks.

GL Communications Inc. a leader in providing PC-based test, analysis and simulation products and consulting services to the worldwide telecommunications industry, conveyed today the availability of its Echo Canceller Compliance Testing Solutions Per G.168 using manual methods.

Speaking to media persons, Mr. Vijay Kulkarni CEO of the company said, ”GL's Manual Test Suite for testing compliance of ECs with G.168 provides the ultimate flexibility for almost any type of network environment and configuration including: Conventional Telephone Networks, Networks With Satellite Connectivity, Wireless Networks such as Cellular and PCS.”

He added, “The system uses two of GL's T1 or E1 Cards (Dual HD Cards, USB cards, and Universal cards). One Card emulates the Far End circuit, provides the stimulus to the Echo Canceller, and captures its response. The second Card emulates the Near End circuit, i.e. models the echo path, and injects noise and voice signals. This PC based system also controls the Echo Canceller modes (NLP on/off, freeze, disable, etc.) and provides a captured PCM stream for analysis.”

Main Features:

·Far End emulation is performed with GL's GUI-based File Playback and File Record Software
·Near End emulation of hybrids by using GL's GUI based Delay/Attenuate Software
·Echo canceller control using standard terminal emulation software, e.g. Hyperterminal
·Millisecond-level visibility and Analysis using GL's GLCView software
·Additional analysis capability using Syntrillium's Adobe Audition Software or Goldwave Software
·All T1 E1 framing formats, signaling modes, and receiver interface strategies supported.
·Complete set of G.168 echo path models for emulation of Near End echo paths.
·G.168 CSS Single- and Double-Talk files recorded at various power levels.
·Detailed procedures for conducting G.168 compliance tests and analyzing results.
·VF Input and Output available at telephone handset for subjective evaluation of echo canceller performance.
·GL's family of T1 E1 cards and its T1 E1 Analyzer GUI Software and Windows Client Server Software are general-purpose products supporting a wide range of T1 E1 testing requirements.

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, OC-12, STM-1, STM-4, 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, LTE, etc.), and with capacities up to thousands of channels. Our newest products provide astonishing capacity and capture capability up to and including gigabit speeds.

GL’s VoIP and IP products generate / analyze thousands of calls and traffic simultaneously with traffic types such as frames, packets, voice files, digits, video, tones, noise, and fax. Almost all codecs are supported including G.711, G.729, AMR, EVRC-A,B,C, GSM, iSAC, and many more. 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 accepted solution for assessing voice quality in the telecom industry. Voice Quality Testing across multiple networks (T1, E1, T3, E3, OC-3, OC-12, VoIP, Wireless, and Landline) is available.

GL’s Wireless Products perform protocol analysis and voice quality assessment on GSM, CDMA, UMTS, and LTE 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 line and acoustic echo. GL’s compliance testing per G.168. G.167 and P.340 across TDM, IP, VoIP and Wireless networks is widely accepted in the industry.

GL’s wireless 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 characteristics. Centralized or distributed access, efficient transport and database loading allow compatibility with 3rd party and standards based monitoring systems.


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Gururaj S D