ADDRESS CONVERTER, COMMUNICATION SYSTEM, MESSAGE COMMUNICATION METHOD, AND PROGRAM
PROBLEM TO BE SOLVED: To provide a technique achieving an address conversion processing of a message without holding address correspondence information in preparation for an incoming call in an address converter, in a communication service network using an SIP (Session Initiation Protocol). SOLUTION...
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Main Author | |
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Format | Patent |
Language | English |
Published |
04.08.2011
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Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To provide a technique achieving an address conversion processing of a message without holding address correspondence information in preparation for an incoming call in an address converter, in a communication service network using an SIP (Session Initiation Protocol). SOLUTION: An address converter is installed in a boundary part between an access network and a core network and is used. The address converter is configured to receive from a user terminal a registration message including the address of the user terminal as information of a contact header, to determine an external address being a core network side address in the address converter for the user terminal, to add the external address to the registration message as information of a prescribed header, and to transmit to a SIP server the registration message with the external address added thereto by including the registration message in a packet in which the external address is designated as a transmission source address. COPYRIGHT: (C)2011,JPO&INPIT |
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Bibliography: | Application Number: JP20100009177 |