Patent ID: 8055790

Claim:
A nontransitory computer-readable media having computer-useable instructions embodied thereon that, when executed, cause a computing device to perform a method of authenticating a dual-stack mobile communications device (“device”) to enable the device to establish an Internet protocol (IP) data session through a wireless telecommunications network, the method comprising: receiving an indication from a home agent that the device has requested to establish the IP data session; determining a domain-name system (“DNS”) server to assign to the device, wherein the determining includes, (a) determining a device-capability identifier, (b) based on the device-capability identifier, inspecting a customer-profile database to determine capabilities of the device, and (c) inspecting the customer-profile database to identify the DNS server that is to be assigned to the device based upon the capabilities of the device; and communicating to the home agent a server identifier (“server ID”) that identifies the DNS server such that the home agent can assign the DNS server to the device by way of a binding acknowledgment.