iMessage not recognizing another iPhone
In our family we have two iPhone 4 phones.
We have text messaging turned off by Verizon.
We have usually been able to send SMS messages via iMessage to fellow iPhone users.
All of a sudden my wife cannot text me.
If she tries to text our son who also has an iPhone on a different plan, it will show up in blue as an iMessage and she can send him one. But when she tried to text me it shows up as green and a standard text message, which off course won't send, since SMS is disabled.
If I try and send one to her, it goes out as a blue iMessage but never makes it to her.
So our two iPhones are not recognizing that iMessage is capable between them.
I have restarted her iPhone and of course iMessaging is enabled in Settings.
Any ideas?
iPhone cases: