VoLTE and VoWifi promise superior user experience not the least by enabling high-quality codecs, such as EVS.
Yet, the radio interface is a potential source of unstable user experience caused by
- Moving end devices
- Unstable radio conditions
- Changing codec modes / bitrates
Keeping control of the user experience requires to look at every single SIP and RTP packet. Conventional approaches, especially to media monitoring, won’t help anymore.