X-Lite

X-Lite is a VoIP (Voice over IP) software phone that ultilizes SIP (Session Initiation Protocol). X-Lite is developed by a company called CounterPath (http://www.counterpath.com) (formerly Xten).

You can download X-Lite at http://www.counterpath.com/index.phpmenu=download

European representative of CounterPath offers X-lite with additional TAPI functions and Outlook support for low. http://www.globaliptel.com