Phone Number Cannot Be Used by iMessage and FaceTime You must have a SIM associated with an Apple device
I went overseas and switched my SIM card out for one that would work in the UK. Once I got back home I put my local provider's SIM card back into my phone. I can make calls and send messages but imessage and facetime doesn't work. I keep getting this message - Phone Number Cannot Be Used by iMessage and FaceTime You must have a SIM associated with an Apple device.