FaceTime Activation error with new iPhone 12

CHRN219 wrote:

How do I correct this activation error that has occurred? I am unable to use FaceTime on my new phone (12 Pro Max) but able to use on my iPad.

Follow all steps here If you get an error when trying to activate iMessage or FaceTime - Apple Support

Same exact problem I am facing. Tried all day doing every step imaginable. Apple told me to wait 24-48 hours. Does yours work now ?