System and method for integration of thin client and voice over IP

A system providing access and use of customized telephony properties anywhere within a network is provided. The system includes a gateway to a telephone network. The gateway stores telephony data unique to each client. A server in communication with the gateway and a plurality of clients is included. The server executes a VoIP application through which the server and the gateway communicate. An instance of the VoIP application is created for each client establishing a session with the server, wherein the gateway creates a mapping table having entries associating the data unique to each client with the session for the corresponding client. A method for providing transferable telephony properties is also provided.