Carrier AT&T Grandfather Data Questions

[Italianblend]

Hi, two questions:

1) I have the Unlimited Data plan still. Can I add my spouse's line on the Unlimited Data Plan so both of us can have it?

If No,

2) If I add a line in any configuration, will that kick me off of the unlimited data plan?

 

[Hal~9000]

1) No, you cannot share your unlimited data plan on two separate phones at the same time.

2) You can add a line to your account (aka family plan), which will allow you to keep your unlimited data plan intact.

 

[imlynxy]

1. You cannot add unlimited plan on her line. You can choose any available plan and then buy UDP online 400-600 per plan.
2. If you add a line you still have UDP. I just added 5th line to my account to upgrade my iPhone and keep UDP on other lines .

If I were you, I call Att or go Att corporate store.