Very easy. Select the phone/line on the main account screen, you should see the option to activate a new device on the line. All you need is the MEID of the old phone and along you go.Yeah I've always wondered why that's listed. Thanks so much you seem to always be a help in anything I post!
Yeah when my GS3 broke we just reactivated my old basic phone and they took of the data plan.
Is it easy to do your self to reassign the dumbphone after upgrading to the smartphone?