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专利名称：Testing user terminal status发明人：Yong-Shin Kim,Joon-Sung Chun申请号：US11322265申请日：20060103
公开号：US20060159245A1公开日：20060720
专利附图：
摘要：A network system and method of testing the terminal status so as to acquirethe link status of the wired/wireless terminals associated to the VoIP-based networkincludes at least one user terminal which transmits a status message in response to a SIP-based Options message and a soft switch which transmits the Option message,
determines whether or not the status message has been received, and recognizeswhether the user terminal is in a Busy state or an Idle state based on a result of thedetermination. Since the terminal status can be accurately determined, it is possible toprocess calls, manage the terminal, and fairly charge the utilization costs to improve thestability and QoS of the network system.
申请人：Yong-Shin Kim,Joon-Sung Chun
地址：Suwon-si KR,Suwon-si KR
国籍：KR,KR
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