How do I get imessage to send SMS texts to non iphone users?
I have read that I can use imessage to send and receive regulr SMS text messages to non iphone users; but, I can't seem to make it work. When I try to enter a mobile number of a non iphone user in the new text address bar and send anSMS text the adressee turns red and I get the following message:
Your message could not be sent.
4342496xxx is not registered with iMessage.
Does anyone have a suggestion? I've checked my preferences and any articles I could find but so far I can't find anything that helps. Thanks.
iMac, Mac OS X (10.6.1)