Upgrade series 1 sony svr 2000

Hi. I inherited an older tivo, and I want to alter it so that it can make the call it has to make over the internet, instead of a phone line. I am not a very technical person...I'm sure there is a way, I just don't know how to put it in the correct lingo to do a search for it?

After getting over that initial how-the-heck-do-I-make-that-happen, then I want it to be a wireless internet connection, but I thought I should take baby steps.

I have a friend who can do all of the technical work, but he has never dealt with tivos so doens't know what to do.

Any suggestions would be appreciated. Thanks!