EVS - Enhanced Voice Services

EVS is a codec introduced by the 3GPP in Release 12 of the 3GPP specifications. The codec features several modes of operation, including Narrowband, Wideband, Super Wideband and Fullband, with data rates ranging from 5.9kbps through to 128kbps.


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

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