I just got TiVo, and to make the initial set up, the box needs to make a toll-free phone call. However, I only have a cell phone - I don't have a regular land line. I'd rather not have to drag the TiVo to a friend's house, and so I was wondering whether there is any way I can use my powerbook to make this call. I can't imagine that there is, but I thought I might ask before I go hauling everything over to my buddy's house. Thanks in advance.