METHOD AND SYSTEM FOR PROVIDING INTERNET TELEPHONE SERVICE IN PROVIDER'S IP NETWORK

摘要

PROBLEM TO BE SOLVED: To unitarily execute the access management of Internet telephone users and the QoS management of voice calling by provider's policy in the case of providing Internet telephone service by a provider's call processing server through a provider's IP network.

SOLUTION: A fire wall function loaded on a user side device in a conventional system is arranged in the node parts of all access formats for accessing the provider's IP network as a provider's IP network function and an access from a user to the provider's IP network based on the combination of a sending/ terminating IP address and a sending/terminating port number can be limited by provider's policy. Fire wall functions allowed to be controlled from a calling processing server are arranged in all access devices arranged on access points connecting user VPN networks or user LANs to the provider network and the calling processing server controls so as to inhibit communication other than voice communication approved to call.

COPYRIGHT: (C)2003,JPO