

In our case, she couldn't make calls either. If this happens to you, the first thing I'd do is turn off your iPhone wifi in settings, and try to make a phone call to see if your SIM/phone number is working properly. I also ran into an issue once (with a friend's iPhone) where the phone number wasn't showing up in the "Send & Receive" list when we went to fix this. Tap on any accounts that you want to link or unlink from iMessage on your device to add or remove the check-mark. (Bonus) Review the accounts listed for the "You can be reached by iMessage at" list and make sure that you want all of those.Scroll to the "Start New Conversations From" list, and select the default address you would like your messages to come from (likely your phone number.).

Simply go to Settings on your iPhone and then. After these steps, you may need to restart Messages. From this interface, select all the emails and phone numbers you want to be associated with iMessage.

