im in the small group of folks who cant activate iMessage or Facetime. i upgraded to iOS 16.0.1 in my iphone 14 pro after setting everything up and it didnt fix the issue. i connected to my mac and did a restore, which involved my mac downloading 16.0.1 and installing it. still didnt fix the issue. im trying a restore one more time, and if it doesnt work i'll patiently spend my friday evening off the text grid and try again tomorrow.
I ported my number over from AT&T to Verizon, so its possible that the switch is leading to this issue. i dont know, im not a doctor.