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AT&T verifies TI echo canceller as 'carrier grade'

Posted: 09 Oct 2002 ?? ?Print Version ?Bookmark and Share

Keywords:Telogy Software? echo canceller? VoIP? silicon solution?

AT&T's Voice Quality Assessment Laboratory has ranked Texas Instruments Inc.'s (TI) Telogy Software echo canceller as "carrier grade". The echo canceller is part of TI's Telogy Software VoIP software and silicon solution.

TI's Telogy echo canceller underwent a series of tests at AT&T's lab, which have resulted to such verification. The evaluations included G.168 testing, a speech signal based analog of the G.168 tests that yields Mean Opinion Score (MOS) results, tone disabling testing and a PCM transparency test. For purposes of comparison, the echo canceller was evaluated against the results of two reference echo cancellers that have been widely deployed and are considered "carrier grade."

Recognizing the importance of echo cancellation, TI acquired Ditech's Telinnovation echo-cancellation software and software team earlier this year to strengthen its capabilities in echo cancellation technology.

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