Does anyone know why sometimes my iMessage sends as text rather than as iMessage ? I use iMessage to chat with my friend in Italy from England. We both keep out settings for iMessage turned on but during our chats occassionally my message turns green and sends as text. This then cost me money because it's an international text. The send button remains blue the whole time I'm writing the message and is blue when I send the message and it stays blue even though the message delievred as a text message. The send button remains blue after the text has sent. Can anyone tell me how to stop this happening ? Thanks
To fix go to Settings>Messages>'Send as SMS (OFF)'
This means that if you have no 3G or wifi then the message will just not send instead of sending as a SMS. Turning this off means you wont accidently send a (rather expensive) text to your friend instead it will just say 'Unable to send' witha red circle next to it, allowing you to 'Try again' when you have 3G or wifi.