Digital Phones Test Systems

Why Test VoIP Acoustics

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Introduction to TCLw and Echo Response

Having Echo Problem with our IP Phone

Provides VoIP telephones manufacturers with a solution to test IP phones on the production line.

Read more: Introduction to TCLw and Echo Response

IP Phone Production Tester

Provides VoIP telephones manufacturers with a solution to test IP phones on the production line.

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Audio File Play and Record

Microtronix Systems Ltd. has added the Audio File Play and Record feature for use on the IP-II Phone Test System and the Telephone Acoustic Tester (TAT). This feature allows the tester to play an audio file through the Artificial Mouth or one of the telephone interfaces of the Tester (POTS, Handset, IP, ISDN, etc...), and make a recording of the received signal at the artificial ear or another telephone interface.

Under test program control, this feature can capture a recording of a file played through the Send, Receive, or Sidetone signal path of a telephone. No analysis of the recording is performed by the Microtronix Tester, rather, the recorded files are intended for analysis using third party software. For example, PESQ (Perceptual Evaluation of Speech Quality) scores can be determined from these files.

Using special DSP techniques, the test system can pre-equalize the audio to compensate for the frequency response of the artificial mouth during a send test. The test system plays the file at a programmable amplitude. The amplitude levels can be specified as either long term RMS or P.56 Active Speech Level.

The Audio File Play and Record feature can easily be added to the following products:

IP-II Phone Test System
Telephone Acoustic Tester (TAT)

SIP Vs. H.323 - A Comparison

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Perceptual Evaluation of Speech Quality (PESQ)

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IP-II Phone Test System

Provides a simple to use turnkey solution for VoIP telephones being tested to TIA/EIA-810-A, ANSI/TIA-810-B, TIA-920 and TIA-920-A specifications.

Read more: IP-II Phone Test System

Expanded Codec Support

Many new codec options are now available with the Microtronix IP Test Systems. We have expanded the selection of codecs available with the Test System, added wideband codecs, and now offer a new codec bundle. There are also a number of patented codecs available with appropriate licensing.

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G.729A for the IP-II Phone Test System

G.729A Codec

Microtronix Systems Ltd. is now offering the G.729A Codec for the IP-II Phone Test System.

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Microtronix SIP and H.323 User Agent Software

User Agent Software

Microtronix Systems Ltd. is now offering User Agent software to verify the compatibility of a VoIP Terminal with the IP-II Phone Test System.

Read more: Microtronix SIP and H.323 User Agent Software