VoLTE in Austria's "3" H3G network
Please make VoLTE in Austrias "3" (H3G) network possible! I'm traveling regularly to the USA and I can't use simple phonecalls anymore because the networks in the US require VoLTE which i cannot enable!! As mentioned here in this forum I tried the key combination to enable VoLTE but it's still not working when i try to call someone.
Urgent help please!!