Yes Man! There is oone software.... I installed it once.(It said that we can use PC like a phone and everything what exactly u want.)
But unfortunately i don't remember it, as i have un installed. coz. i am using bsnl broadband., so modem drivers were uninstalled.(didn't took courtesy to install the drivers and check it.)
But I think i dowloaded it from download.com just a month ago.
But as soon as i remember the name, i'll contact u, I have noted ur email id.
and if u find it plz inform. let me also try it.