OsmoDevCall: "High-Level intro to IMS, VoLTE & VoWiFi"

I've presented a talk High-Level intro to IMS, VoLTE & VoWiFi as part of the OsmoDevCall talk series on Osmocom and related technology.

You can find the video recording at https://media.ccc.de/v/osmodevcall-20210723-laforge-ims-volte-vowifi