12 hours a day!!!
it costs $50 a month, because since I am dialing in to my ISP localy the calls dont cost anything, but $20 for the ISP(unlimited hours a month), and $30 for the 2nd phone line,

and BTW my ISP emailed me the other day asking me why I spent over 350 hours connected this month, they wanted to make sure I wasnt using a stay connected program, or running some kind of public information service off of my computer(like an FTP server or something)