Method for providing service of voice call in a packet-based network and network system for the same

摘要

The present invention relates to a method of providing a packet-based voice call service, and more particularly, to a method of providing a packet-based voice call service in which an unnecessary circuit-based network interworking can be prevented in advance in providing a packet-based voice call service between a calling terminal and a called terminal, And a network control system therefor. According to another aspect of the present invention, there is provided a system for providing a packet-based voice call service, the system comprising: a receiving terminal for receiving a call connection request from a calling terminal to a called terminal via a packet-based access network, A source IP-based network control system for transmitting the call connection request to a destination IP-based network control system corresponding to the provider information, and a destination IP-based network control system for receiving the call connection request of the originating terminal from the source IP- Based on the result of the checking, whether or not the destination terminal supports the packet-based call, and transmits the call connection request to the destination terminal through any one of the packet-based access network and the circuit- Based network control system And the like.