No Video Call & Advanced Calling

Hi,

On my HTC 10 with stock 1.80.401.3 I can't find any settings related to Video Calling and I can't find any option to enable it.
Also I don't have an "Advanced Calling" menu on my Settings section.

Is that normal? I mean, is Europe models stripped of this functionality?

If not how can I enable it?

AT&T Video Calling and Advanced Messaging?

Does anyone know if AT&T video calling and advanced messaging work on the HTC 10? You can enable video calling and advanced messaging by changing the following lines in /system/customize/MNSProp/311180.prop:
persist.radio.VT_ENABLE=1
persist.rcs.supported=1
persist.radio.VT_HYBRID_ENABLE=1


I don't know anyone with an Android phone on AT&T which supports video calling or advanced messaging so I haven't been able to test if they actually work. If you would like to help me out please PM me.

Advanced Calling and WiFi Calling won't enable

Rooted G900V with MM 6.0.1. Trying to enable Advanced Calling and I get the message that it is already enabled on my line and to power off and back on my device. Still doesn't work. Is this just a known issue with a rooted device or is there some trick to get it working? I saw a post about toggling Global to LTE and I'm trying that and so far, I have a status that says upgrade in progress and you will receive a message shortly when upgrading complete but things have not progressed from there (so far).