14 Replies Latest reply: Nov 30, 2012 11:42 AM by Ralph Johns (UK)
crazylegsoz Level 1 (0 points)

I am new to Apple products.  I just purchased a MacBook Air and an iPhone 4.  I am a registered iCloud user.  I have been messaging amongst friends on my iPhone to their phones (not iPhones).  The contact information is just their cell phone number.  But when I try messaging on my MacBook Air, I get the message "Your message could not be sent. 3151234567 is not registered with iMessage." What...???  Is iMessage on a MacBook Air a different application than message is on an iPhone 4?  Why?  I thought would be the same and could be synchronized....  Am I missing something here...??? Help...

MacBook Air, OS X Mountain Lion (10.8.2)