Abstract: The present invention relates to a call processing message converter and message converting method in an IP-PBX system, capable of controlling IP terminals equally to legacy terminals by transceiving user information with IP terminals.

Abstract: System and method for providing a Web content provision service using a subscriber terminal in an exchange system.

Abstract: A call processing system and method are based on a dual mode terminal. The call processing system comprises: a Private Branch Exchange (PBX) which, when a call is incoming to an extension through a first network, checks registration information based on a link test message transmitted periodically from a destination terminal having a number of the extension to which the call is incoming, and processes the incoming call in real time; and a dual mode terminal which is interconnected to an extension of the PBX, operates in at least one of a Wireless Local Area Network (WLAN) mode and a wireless communication mode, and processes the incoming call.

Abstract: A method for interconnecting wired and wireless phone services of a system for interconnecting wired and wireless phone services includes: registering at least one of wire terminals and public/private mobile communication terminals as extension subscribers and endowing the extension subscribers with each of wired phone numbers; and in the case that an arbitrary wired phone number is called, making a call to the wired terminal corresponding to the wired phone number, and in the case that there is the public/private mobile communication terminal to be simultaneously called with the wired phone number interconnectively, making a call to the corresponding public/private mobile communication terminal through a mobile communication network. Therefore, a general wired subscriber is provided with the wired phone service and a service of portability through the wireless terminal, and a subscriber's billing burden can be reduced.

Abstract: System and method for providing a Web content provision service using a subscriber terminal in an exchange system.

Abstract: The present invention relates to a call processing message converter and message converting method in an IP-PBX system, capable of controlling IP terminals equally to legacy terminals by transceiving user information with IP terminals.