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What is a VoIP codec? Which coders are supported by Dialogic HMP drivers?

A codec is a sound compression algorithm used by digital sound reproduction devices to compress and decompress digital sound packets over a data network.  Of the many sound coders in use, Intel Host Media Processing (HMP) supports the following:

  G.711aLaw
  G.711mLaw
  G.723.1
  G.726
  G.729a
  G.729b
  Media Streaming over IP
  QoS Alarms

Most VoIP service providers use the G.711 codec.

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