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VoIP bandwidth management

  • US 9,356,869 B2
  • Filed: 04/10/2013
  • Issued: 05/31/2016
  • Est. Priority Date: 04/10/2013
  • Status: Active Grant
First Claim
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1. A computerized method of optimizing audio quality in a voice stream of Voice over Internet Protocol (VoIP) applications between a sender and a receiver, comprising:

  • defining by the receiver a plurality of time intervals for the voice stream;

    determining by the receiver at an end of each of the plurality of the defined time intervals whether congestion exists, by(i) calculating a one-way-delay for each of a first plurality of received audio packets in the voice stream and(ii) using double exponential smoothing to calculate a one-way-delay trend of the first plurality of received audio packets;

    estimating by the receiver a bandwidth available to the sender based on a result of said one-way-delay trend calculation;

    sending by the receiver said estimated bandwidth to the sender; and

    using by the sender said estimated bandwidth received by the sender as maximum allowed send rate for a second plurality of audio packets in the voice stream of the VoIP applications.

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