Originally Posted by aerospace
From Att.com though I would assume they may use your minutes from your plan in addition and possibly add connection charges as well.
No, not at all likely. They are paying for the ship's satellite service. They are effectively partners with the company that supplies the ship's satellite service, who are in turn partners with the cruise lines.
They are all going to want a share of the income from your phone calls. No plans are going to cover calls from a ship at sea