Apparatus and method for providing VoIP service

Apparatus and method for providing VoIP service

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 m...

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1. Verfasser: JUNG-SIC SUNG
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TELEPHONIC COMMUNICATION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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creator JUNG-SIC SUNG
description 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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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TELEPHONIC COMMUNICATION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title Apparatus and method for providing VoIP service
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