Patent ID: 8392451

Claim:
A method of operating a communication system, the method comprising: receiving a registration request for a user device; processing the registration request to associate a network address with domain name information for the user device; transferring an update message for delivery to a local domain name database comprising a mobile access gateway (MAG) of a wireless communication system with the association between the network address and the domain name information for the user device, and withholding an update of the association in a master domain name database comprising an Internet domain name system (DNS) server; receiving a first query for the association between the network address and the domain name information for the user device into the master domain name database, and in response, transferring a second query for delivery to the local domain name database; and receiving the second query in the local domain name database, and in response, transferring the association between the network address and the domain name information for the user device for delivery to the master domain name database.