Tried pretty much everything in this post and some iPhones would send as SMS and others would send as an iMessage. Most annoying was my wife's iPhone would send as iMessage. On her iPhone we performed kurthurst's solution and it worked. Tried again on my mother_in_laws iPhone which also sent as iMessage and it worked too.
Yea its a pain in the *** to tell everyone to do this but it seemed to work for me.
Thank you to all contributors in this thread!!
kurthurst
Re: How to remove my phone number from iMessage?
Apr 25, 2013 10:18 AM (in response to LeeBrenda)
I just got this issue resolved. You will need to have the original iPhone to do it this way, but it will allow you to receive sms from other iPhone users.
1. Go to Settings -> Messages and turn on iMessage if its off.
2. Go to Send/Receive options
3. Tap on your icloud/itunes account email at the top of the page.
4. Tap on "Sign Out"
5. Go back to Message settings and turn off iMessage.
6. Restart your phone.
7. Have someone with an iphone send you a message. It should be working now