Samsung Electronics Co., Ltd.

Cj Cheiljedang Corporation

Su Jin Bae

Su Jin Kim

Ju Young Kim

Byoung Seok Moon

Young Ki Jeon

Hong Wook Park

Yeo Jin Kim

Hee Jeung Kim

Hyung Cheol Kim

The present application relates to a nipa palm extract preparation method and a nipa palm extract prepared by means of same.

Nipa palm extract preparation method and nipa palm extract prepared by means of same

A method and an apparatus select a domain of an application server in order to support a voice call continuity service in a mobile communication system including an IP Multimedia Subsystem (IMS) domain and a Circuit Switched (CS) domain. The method includes selecting either the IMS domain or the CS domain according to a dynamic domain selection priority which is predetermined corresponding to a terminal when a voice call for the terminal is received. The method also includes anchoring the received voice call corresponding to the terminal through the selected domain. A voice call establishment for a terminal using first the most recent domain which is used for a voice call in a mobile communication system is initiated. Thus, it is possible in a mobile communication system to increase the domain selecting completion rates for a voice call service corresponding to a terminal.

Method and apparatus for selecting domain for voice call continuity in mobile communication system

A roaming service providing method and a system thereof are provided. The communication network system providing an inter-network roaming service, includes: a packet service network providing a packet based service; a circuit service network providing a circuit based service; and a roaming gateway acquiring and authenticating a service profile of a first terminal in the packet service network when the first terminal requests registration to the circuit switching network, and converting and providing the service profile into a protocol of the circuit service network such that the circuit service network registers the first terminal.

Method for providing a roaming service between heterogeneous networks and system therefor

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Suwon-si, South Korea

Su Jin Bae