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One Useful Way To Test VoIP Quality

Sage Instruments' neat little 935AT portable unit performs end-to-end call tests to assess overall speech quality.
November 23, 2004

Sage Instruments' 935AT was one of the key pieces in CT Labs' test setup for our IP Phone Reviews. It allowed us to:

  • Automate perceived speech quality tests (done with SMOS test);
  • Run a speech clipping/silence suppression test (done with PVIT test);
  • Check for comfort noise level (done with SMOS test);

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