Patent ID: 8233401

Claim:
A method comprising: receiving, at a network device, an Internet Protocol (IP) registration request associated with an access terminal; initiating, at the network device, IP registration of the access terminal, wherein initiating IP registration includes determining IP registration information of the access terminal; identifying at least a portion of the determined IP registration information for use in an application layer registration of the access terminal, the portion of the determined IP registration information including an Internet Protocol (IP) address of the access terminal, a port of the access terminal associated with a particular application, and an identity for the access terminal; associating the identified identity for the access terminal with the identified IP address of the access terminal and identified port of the access terminal; and facilitating registration of the access terminal at the application layer using at least the identified portion of the IP registration information, the registration at the application layer being initiated automatically by the network device upon receiving the IP registration request, wherein facilitating registration includes causing communication, to an application layer entity, of the association of the identified identity for the access terminal with the identified IP address of the access terminal and identified port of the access terminal.