Cannot see phone number in imessage settings
I have recently set up my old Iphone 5 (with the latest software) for my son and for some reason his phone number is not showing up under the Send & Receive section. All that shows up is his email address.
I have turned off imessage and Face time and then restarted the phone. Then turned on imessage again but under the imessage button it says "Waiting for Activation". I have reset his phone but it is still waiting for activation.
Any suggestions??
Thanks
iPhone 5, iOS 8.1.2