Forgive me if this is a repeat question, I did not see something popup in a search. My mother has an upgrade available on a family plan she shares with my dd, wife and brother. I have a AT&T phone through my employer. She has a flip phone and has no intentions on upgrading. Can I order and iPhone 5 using her upgrade and then activate it on a different plan? I know I will have to go get a fresh SIM to make it work, but I have never done the activate on another plan before, only upgraded on one line and activate on another but on the same plan. Thanks for any help.