IP-PBX system and method for linking VoIP terminal therewith

摘要

An Internet protocol (IP)-private branch exchange (PBX) system and a method for linking the system with a Voice over Internet Protocol (VoIP) terminal. The IP-PBX system and method allow the VoIP terminal to be registered at an extension of the IP-PBX system, the VoIP terminal supporting a protocol, e.g., H.323 or session initiation protocol (SIP), standardized by a standardization organization, e.g., the International Telecommunication Union (ITU), the Internet Engineering Task Force (IETF), or the European Telecommunications Standards Institute (ETSI).

主权项

1. A method for processing a call in an Internet protocol (IP)-private branch exchange (PBX) system in which at least one digital phone and at least one Voice over Internet Protocol (VoIP) terminal are linked, the IP-PBX system comprising a first database, a second database, and a third database, the method comprising:
receiving a VoIP call connection message; determining whether an originating number in the VoIP call connection message is an extension number; in response to a determination that the originating number in the VoIP call connection message is an extension number, assigning a specific extension index of at least two extension indexes stored in the third database; in response to a determination that the originating number in the VoIP call connection message is not an extension number, assigning a specific external line index of the at least two external line indexes stored in the third database; storing the assigned specific extension index and the originating number in the second database; transmitting a message comprising the assigned specific extension index and the originating number to a terminal corresponding to a destination number in the VoIP call connection message; and transmitting a message comprising the specific external line index and the originating number, which is not an extension number, to the terminal corresponding to the destination number in the VoIP call connection message.