Patent ID: 7328255

Claim:
A communication system for connecting a terminal to an outside communication network through a server operating as an exchange, wherein said terminal sending transmission data including its own terminal identification information for identifying said terminal uniquely to said exchange together with a request to said exchange to provide a setting for connection with said communication network, and said exchange receiving said request and searching for stored communication setting information of said terminal, according to said received terminal identification information of said terminal, said exchange performing the connection setting for connecting said terminal to said communication network based on the stored communication setting information wherein said terminal sending terminal setting information indicating content of its desiring setting, which is included in said transmission data, to said exchange, when requesting said connection setting to said exchange, and said exchange determining whether the setting for said terminal indicated by said terminal setting information is possible, with reference to said received terminal setting information of said terminal, when receiving said connection setting request from said terminal, and said exchange performing the connection setting for connecting said terminal to said communication network, based on said terminal setting information, when the setting indicated by said terminal setting information is possible.