HV - High quality Voice

The HV (High Quality Voice) indicates a Bluetooth packet which has been defined so it can support high quality voice on a SCO (Synchronous Connection Oriented) link. Three different types of high quality voice packets are identified; these are known as HV1 packets (1 slot), HV2 packets (2 slot) and HV3 packets (3 slot).


  • Fully interactive 3GPP based network map
  • Narrated call flows
  • Detailed network procedures

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