Hmmmm. IP Phone Calls for all! Cool. SIP Phone is an actuall phone that you plug into a broad band internet access connection and make calls with! and eStara SoftPhone is an app for windows. That one is not free. it costs about $100. The SIP Phone its self costs $129.99 for 2!! Theres a list of SIP Phones here and MSN Messanger is ment to be SIP compatable. not checked that yet. will see at home though! cool! [update] check out FWD Number, KallFree and Google Search here for IP Calling.