Patent ID: 8275105

Claim:
An IP telephone terminal comprising: a communicating unit that is configured so as to be capable of being connected to an Internet, performing IP telephone communications with an external IP telephone terminal via the Internet, and receiving identification data assigned to an external IP telephone terminal from the Internet; an IP telephone function controlling unit that controls implementation of an IP telephone function for conducting voice communications with the external IP telephone terminal identified by the identification data via IP telephone communications, the IP telephone communications employing a communication method in which a reception-side IP telephone terminal receives an authorization request from a transmission-side IP telephone terminal and returns an authorization response for the request, and the transmission-side IP telephone terminal transmits a file to the reception-side IP telephone terminal upon receiving the authorization response; a function implementation controlling unit that is configured so as to be capable of controlling implementation of a function instructed by a file received via IP telephone communications when the communicating unit receives the file; a configuration data storing unit that stores configuration data that is used by the function implementation controlling unit to implement the function; a configuration data acquisition controlling unit that performs control to acquire configuration data from the configuration data storing unit when the communicating unit receives a read file that is transmitted from the external IP telephone terminal; a response file generation controlling unit that performs control to generate a response file including the configuration data acquired by the configuration data acquisition controlling unit; a response file transmission controlling unit that controls the communicating unit to transmit the response file generated by the response file generation controlling unit to the external IP telephone terminal that has transmitted the read file; and an update controlling unit that, when the communicating unit receives a write file, performs control to update the configuration data stored in the configuration data storing unit based on the write file that is transmitted from the external IP telephone terminal that has received the response file.