You can't do anything if it's not supported on both sides. I would ask orange if the phone is really supported. Also HTC needs to tweak their ims.apk properlyStock ROM was a Vodafone one before unlock it, s-off, root it and installed this MaximusHD ROM. Didn't check back then if I had those options in the settings, probably not. But now I'm on Orange on which I know the Wifi and VoLte are supported but I'm trying to find out what I need to do to have those in my settings?
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