GL Conveys Echo, Delay and Voice Quality Analysis of Voice Calls in VoIP, TDM, 2-Wire, and Mobile Networks.

Gaithersburg, Maryland (PRWEB) October 04, 2012

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 software solution for Echo, Delay and Voice Quality Analysis of Voice Calls in VoIP, TDM, 2-Wire and Mobile Networks.

Speaking to media persons, Mr. Vijay Kulkarni CEO of the company said, GL’s Echo Measurement Utility (EMU) software is an offline adjunct analysis application (under control of VQuad) that compares the source and received files to determine echoes and delay of echoes. EMU software assesses sidetone, line, and acoustic echo and the corresponding delays.

He added, GLs EMU Software measures Echo Path Delay (EPD) and Echo Return Loss (ERL) of voice calls. Echo can be as simple as sidetone, or more complex such as line, and acoustic echo. The EMU when combined with GL’s VQuad, Dual UTA, T1/E1 Analyzers, RTP Toolbox, WEBViewer. or Voiceband Analyzer, additional voice quality metrics such as round trip delay (RTD), voice quality, and noise can also be measured.

Mr. Kulkarni further added, To provide a comprehensive assessment of voice quality irrespective of network type, GL has combined various tools together into one platform consisting of VQuad, Dual UTA, USB T1 E1, and WEBViewer. This platform provides the ability to make VoIP, TDM, and Mobile calls from any fixed or mobile location. All interface flexibility is provided (2Wire, 4Wire, VoIP, TDM, and Mobile) within the Dual UTA and USB T1 E1 Analyzers. In addition, VQuad provides algorithms for signaling, voice transmission, and voice quality assessment. WEBViewer provides the central point where voice metrics are stored and displayed through a WEB interface.

Important Features

GL Conveys Echo, Delay and Voice Quality Analysis of Voice Calls in VoIP, TDM, 2-Wire, and Mobile Networks.

GL Conveys the Availability of its T1 E1 Error Insertion and Bulk Delay Application

Gaithersburg, MD (PRWEB) November 09, 2012

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 T1 E1 Error Insertion and Bulk Delay Application.

Speaking to media persons, Mr. Vijay Kulkarni CEO of the company said, Simulating bulk delay and errors like that found in real networks can help optimize the performance of applications. GL’s USB based or PCI Card based T1 E1 Analyzers can easily simulate such conditions. For example: At what delay does the application under test suffer throughput degradation due to ARQ Automatic Repeat Requests, at what error rates does voice performance on compressed codec circuits start to degrade, how good is error correction when the underlying uncorrected error rate is 10E-5, how to simulate the error characteristics of a microwave circuit, a copper T1 line, a fiber optic transmission line, Does encryption multiply the inherent error rate of the circuit and by how much and so on..

He explained, The Error insertion application permits inserting single, fixed, automatic, random, and burst error into the incoming bit stream. A block diagram, GUI, and schematic of the function is provided for Error Insertion application, ensure that the analyzers framing format configuration should be set according to the input signal framing format. As shown in the diagram the input to the T1 Card is fed back to the output after passing through the error insertion logic. When the aforementioned feature is used in conjunction with Cross Port Transmit, introducing delays and errors is extremely easy.

In the Cross Port Transmit Mode, the data that would normally be transmitted on Card 1 (Port 1) is diverted and transmitted on Card 2 (Port 2) and the data that would normally be transmitted on Card 2 (Port 2) is diverted and transmitted on Card 1 (Port 1). The receive paths are completely unaffected. This feature also eliminates complex cabling.

Mr. Kulkarni further explained, Bulk delay is an added feature in Error insertion application, that allows users to apply delay on the entire T1 E1 trunk (full multi-frame) of 1.544Mbps (T1) pipe or 2.048 Mbps (E1) pipe. This helps to simulate network delay along the T1E1 links. After selecting or adjusting the delay, the Delay will fill a buffer and begin transmitting the signal; this will cause the T1 or E1 multi-frame signal to briefly lose sync when applying the delay.

He added, Bulk delay can be applied in either microseconds or milliseconds units and delay can be varied from 0 to 169.77mSec or 69 to 169845

GL Conveys the Availability of its T1 E1 Error Insertion and Bulk Delay Application