Patent ID: 7136997

Claim:
A method for managing a network of radio devices using at least one authentication server, the method comprising: deleting information of a first radio device to be deleted from registration information of the radio devices at a deletion accepting authentication server which is an authentication server that acquired deletion information for deleting the information of the first radio device from the network; transmitting the deletion information from the deletion accepting authentication server to other authentication servers related to the network; sending a response from a deletion information receiving authentication server which is one of the other authentication servers that received the deletion information, to the deletion accepting authentication server; deleting the information of the first radio device from the registration information of the radio devices according to the deletion information, at the deletion information receiving authentication server; generating a list of deletion information non-receiving authentication servers which are authentication servers that failed to respond, and re-transmitting the deletion information to the deletion information non-receiving authentication servers, at the deletion accepting authentication server; and deleting the information of the first radio device from the registration information of the radio devices at each deletion information non-receiving authentication server.