发明名称 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).
申请公布号 US2007206585(A1) 申请公布日期 2007.09.06
申请号 US20070705110 申请日期 2007.02.12
申请人 LEE SUNG-WOO 发明人 LEE SUNG-WOO
分类号 H04L12/66 主分类号 H04L12/66
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