Hi all i've recently moved across from Voxi (voda), I've came across an issue where if I enable Wifi calling and someone tries to call me from a Vodafone device it flashes up quickly on my mobile but drops to missed call and the caller just gets a busy signal. It works fine if calling from Sky and Three (I haven't tested on other networks).
If I turn off WiFi calling its fine and I can receive calls as expected from all networks.
This is also true if I enable VoLTE, same issues occurs. So if I have WiFi calling disables and VoLTE enabled same issue.
Aniyone any ideas what could be causing this? Is it only ported numbers? Or even ported numbers from voda? I believe i'm on Voda with VM now anyway.