WB-AMR - Wideband Adaptive Multi Rate

Wideband variable rate speech codecs such as the WB-AMR codec used in UMTS and VoLTE systems offers superior wideband speech quality at data rates comparable to current narrowband speech codecs. With a higher data rate available, HD voice services can be offered to the customer.


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

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