FIELD: radio engineering, communication.
SUBSTANCE: invention relates to a method and a system for providing an internetwork roaming service. A communication network system which provides an inter-network roaming service comprises a packet service network which provides a packet-based service, and a circuit-switched network providing a circuit-switched service. The disclosed system also includes a roaming gateway acquiring and authenticating a service profile of a first terminal from the packet service network when the first terminal requests registration to the circuit-switched network, and converting and providing the service profile into a protocol of the circuit-switched network such that the circuit-switched network registers the updated location of the first terminal. The packet service network and the circuit-switched network are physically different networks.
EFFECT: high quality of service for network subscribers.
10 cl, 5 dwg
