Does anyone know why I can iMessage with my iPhone 4S, but I can't Text Message? Send as SMS is turned ON under Settings-Messages which allows to send as SMS when iMessage is unavailable.
Im having a similar issue. One person is unable to recieve my text messages for some reason, but I think I have the same settings you do. I can her get texts, but she cannot get mine. Dont know whats causing this?
Yes, found the fix. Settings - General - Reset - Reset Network Settings. This does not erase your phone, but it will reset all connections. The only thing you should have to recreate is your wi-fi connections.