SMALL IMS CORE SYSTEM

摘要

Embodiments of the present invention relate to a small-capacity IMS core system applicable to a customer group. A small-capacity core system of the present invention enables a customer group (a company, an institution, a school, or the like) to interchangeably use a wired telephone (POTS) system and an Internet phone system and interchangeably use a non-IMS terminal such as a wired/wireless IP telephone or a smartphone with an IMS terminal, the system comprising: a main control unit (MCU) for providing only a function required for a customer group among functions of an IMS structure; a PSTN processing unit (line interface unit (LIU)) used for extending a physical port of a wired telephone (POTS); an SIP gateway for converting a standard SIP message into an IMS message; and an FMC controller for providing support so that a wireless terminal such as a wireless IMS terminal, a smartphone, or the like is used in a mobile environment. This system includes an IP-communication-based virtual Ethernet back plane so that each units exchanges information at high speed.