Are you on dailup, dsl or cable? If your on dialup I'm pretty sure netmeeting allows you to make calls with your modem, but you can't be on the internet at the same time. If your on dsl or cable then you want to look into Voice over IP (VoIP). You'll have to pay a fee to get switched into the regular phone line, but I think it is nominal. If your doing computer to computer conversation you can just use netmeeting to direct connect.