deweyzeph
Honorary Master
If anyone is interested, I managed to get MTN Wifi-calling to work on a network that MTN has blocked wifi calling on through a wireguard VPN back to my home's Afrihost internet connection. The big problem with wifi-calling on Android is that no matter what VPN app you have on your phone, wifi-calling will ALWAYS bypass the VPN on your phone to make the connection back to MTN's servers. So using wireguard on the phone itself will not work. You have to setup the wireguard VPN in front of the phone, and for this purpose a Raspberry Pi is perfect. So I installed wireguard on the Raspberry Pi, which then setup a VPN to my home, where wifi-calling always works, and then setup the Pi as a mobile hotspot which my phone then connects to. So as far as MTN can see, I'm connecting to their WIFI calling servers from my home connection, no matter where I am in the world. It works like a charm.