Patent ID: 8244230

Claim:
A method of terminal function completion including: a communication terminal which is installed with a routing table; a communication terminal management server which is connected with said communication terminal via a first network and which stores a function installed on said communication terminal as communication terminal compatible function information; and a peripheral terminal which is connected with said communication terminal via a second network, said method characterized by arranging: that said communication terminal registers a function installed on said peripheral terminal, in addition to a function of said communication terminal itself, to said communication terminal management server as communication terminal compatible function information, and stores a function, which is installed on said peripheral terminal and which is not installed on said communication terminal itself, in said routing table in such a way that the function is associated with the peripheral terminal; that when a connection to said communication terminal via said first network is initiated by a counterpart terminal, said communication terminal management server confirms whether said communication terminal is installed with a specific function which is utilized by said counterpart communication terminal, by referring to said communication terminal compatible function information, and when said communication terminal is installed with said specific function, said counterpart terminal is notified that said communication terminal is installed with said specific function; and that when said specific function is a function which is not installed on said communication terminal itself, said communication terminal refers to said routing table and performs communication with said counterpart terminal by using said peripheral terminal which is stored in association with said specific function.