is what i get when i try to send a text to my brothers iphone. He has imessage turned off on his phone. I have imessage turned off on my iphone when I want to send him a text as it goes to his ipad (which has imessage turned on) I just want to send him an sms message but I can't as i get this message. why can't it go through as an sms text? like it would on a normal phone?