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GL Communications (News - Alert) Inc., a provider of PC-based test, analysis and simulation products and consulting services to the worldwide telecommunications industry, has unveiled its software for Echo Performance Testing and Verification.

“The Echo Performance Testing application allows you to apply delay, attenuation, and/or filtering to a received signal on any number of timeslots,” said Vijay Kulkarni CEO of the company, in a statement.

“Delay/Attenuate Timeslots is an 'input-process-output' application, that is, a block of data is retrieved from the Rx Data Source (News - Alert); is processed by delaying, attenuating, and/or filtering it; and then retransmitting the processed block on the Tx Destination. You may also mix in additional signals from a number of sources, including: Speech and/or Noise signals from files, Speech signals inserted via VF input, Gaussian noise signals generated internally,” said Kulkarni.

He said that transmitted signaling bits may be Onhook/Offhook, user-specified, or passed through from received to transmitted timeslots.

Kulkarni said that the Delay/Attenuate Timeslots application may receive and transmit on either one or two boards.

“There are a number of different operating configurations, the most common and useful are: Looping back a processed signal -- Applying delay, attenuation, and filtering to a received signal and retransmitting the processed signal on the same board on which it was received. Speech and/or noise may also be mixed in. Applying pure delay to a signal. A received signal is delayed before being retransmitted. Inserting a Simulated Echo Loop. A two-board system is inserted into a T1 or E1 trunk and is used to simulate an echo path having known characteristics,” he said.

Recently, TMCnet reported that GL Communications has released its enhanced HDLC Link Impairment Utility (HLIU) application and other HDLC Testing Tools.

TMCnet in January reported that GL Communications has introduced the addition of Channel Associated Signaling (CS) Protocol Emulator to GL's Message Automation and Protocol Simulation (MAPS) platform.