Patent ID: 6466571
Filing Date: 2002-10-15
Classification: H04L,H04W

Abstract:
A method of finding a mobile wireless communications device when an Internet Protocol (IP) packet from a remote user over an IP network is sent to said device, comprising the steps of:receiving, at a home agent associated with a wireless communications network, said IP packet, said IP packet including an IP address assigned to said device; sending an access-request packet from said home agent to an authentication server, said access-request packet containing said IP address; maintaining a table at said authentication server mapping said IP address for said device to an identification number uniquely associated with said device, said authentication server sending an access-accept packet to said home agent in the event that said device is authorized to receive said IP packet, in which case said access-accept packet includes said identification information; in response to the receipt of said access-accept packet, said home agent cooperating with a mobile node location server to either locate said device in the event that the current location of said mobile device is known or cause a page of said device in the event that the current location of said device is not known to thereby alert said device that an incoming call has been received to thereby prompt said device to initiate communication between said device and said remote user.