I'm running iOS 6.0.2 on iphone 5. I can send MMS, SMS and iMessage. The issue I'm having is that when I try to do a group message it only works if everyone is apple (iMessage). If they don't, then I get individual replies. I'm with ACS in Alaska and they are only 3G. I had AT&T LTE about a month ago and had that option to click Group Messaging in settings and it worked great. I no longer have that option in settings at the bottom of the messaging section. It only has the MMS, subject line and character count options. Any ideas on how to fix?