Patent ID: 8165063
Filing Date: 2012-04-24
Classification: H04L,H04W

Abstract:
1. A system for performing location management using a Home Subscriber Server (HSS) in a Voice over Internet Protocol (VoIP) service, the system comprising: a Session Initiation Protocol (SIP) terminal unit configured to send and receive a SIP call, by which a VoIP telephone can be used, by being connected to a broadband VoIP network; an HSS controller having a Database (DB) storing an Identification (ID) of a device, which the SIP terminal unit initially accesses according to an access network to which the SIP terminal unit is connected in the broadband VoIP network, location information of the SIP terminal unit, which contains a location code and an address of the device, and location information of a destination terminal to which the SIP terminal unit is to connect; and a Call Session Control Function (CSCF) controller connecting the SIP terminal unit and the destination terminal in a VoIP telephone service using the location information stored in the HSS controller in the broadband VoIP network, wherein the HSS controller comprises: wherein when information of the destination terminal to which the SIP terminal unit is to connect does not include location information, the location information providing server is configured to locate a local destination number of the destination terminal by referring to the location information of the SIP terminal unit stored in the HSS having the location information DB.