9
• Majority of the VoLTE calls still using AMR-NB will benefit from EVS NB-codec
with up to 2.5 dB coverage gain and 20% additional capacity
• Translates to 20% less CAPEX and OPEX on their budget = huge $
• EVS 13.2 kbps should be used for HD calling to achieve better quality, similar
capacity and improved RF coverage (+2 dB)
EVS Benefit Analysis for Wireless Carrier Evolving to VoLTE
Coverage impact can
be significant as
~20+% calls under -114
dBm
Translates to more calls
with higher sound quality
and greater range for
existing cellular towers
