Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jung-Sic Sung0
Date of Patent
May 31, 2011
0Patent Application Number
109963740
Date Filed
November 26, 2004
0Patent Primary Examiner
Patent abstract
An apparatus and method for providing VoIP service, where, in the case that a plurality of public IP terminals or PCs are connected to a private network using a public IP address, a switching system manages port information which is used by each of the IP terminals, switches a VoIP service request message or a response message, and notifies port information of the other IP terminal, and the IP terminal included in the private network connects a call to the other IP terminal so as to receive the VoIP service, so that a voice packet can be exchanged.
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