Patent ID: 6504839
Filing Date: 2003-01-07
Classification: H04L,H04M,H04W

Abstract:
A method for routing information to a mobile device communicating with a wireless telecommunications network, said method comprising the steps of:receiving a call request for said mobile device from a device coupled to a packet-switched network at a first node of said wireless telecommunications network, said first node being coupled to said packet-switched network; sending an inquiry to a location resource of said wireless telecommunications network, said inquiry including a unique identifier of said mobile device; querying a database in said location resource using said unique identifier, said database including an association between said unique identifier and a serving node of said wireless telecommunications network in communication with said mobile device; sending a request for routing information from said location resource to said serving node of said wireless telecommunications network in communication with said mobile device; receiving a response to said request for routing information from said serving node; determining, using information contained in said response, if said serving node is also coupled to said packet-switched network; routing said call request from said first node to said serving node through a circuit-switched network coupled intermediate to said first node and said serving node in response to a negative indication that said serving node is coupled to said packet-switched network; and routing said call request through said packet-switched network to said serving node in response to an affirmative indication that said serving node is coupled to said packet-switched network, whereby said information can be routed from said first node to said serving node of said wireless telecommunications network without the use of said circuit-switched network.