Your text messages can be sent as either regular text messages or iMessages. iMessages can be sent to phone numbers or email addresses if the recipient has a device which supports iMessages. Remember, you need to activate your Apple ID.
Just so you know...
Please select the red text to see instructional images.
Turn on iMessages
Press the indicator next to "iMessage" until the function is turned on.
Turn sending of read reply on or off
Press the indicator next to "Send Read Receipts" to turn the function on or off.
If you turn on read reply, the sender is notified when you've read an iMessage.
Turn text message alternative on or off
Press the indicator next to "Send as SMS" to turn the function on or off.
If you turn on Send as SMS, iMessages will be sent as regular text messages if the service is unavailable.
Add email address
Press Send & Receive.
If you've not yet logged on with your Apple ID:
Press Use your Apple ID for iMessage.
Follow the instructions on the display to log on.
Press Add Another Email....
Key in the required email address and press return.
Press Messages to go back to the settings.
You can key in an email address which others can send iMessages to. Remember, you need an Apple ID. If you don't have an Apple ID, you can create one at www.apple.com