Abstract: The present invention provides a system and method for providing an IP address of a user's computer and establishing a transparent data connection allowing multimedia collaboration. In using the present invention, the first user (or the caller) establishes a voice call by dialing the second user (or the called). The caller's telephone will then contact the caller's monitor application running on the caller's user's desktop computer and will retrieve the current IP address and deliver it to the caller's telephone. The called telephone will then receive the IP address of the caller and forward it to the called's desktop computer via the serial or USB connection. The called's application will then start a multimedia collaboration application with the IP address of the caller's computer.