发明名称 Method and apparatus for providing presence status of multiple communication device types
摘要 A method and apparatus for conveying presence information from distinct communication devices are disclosed. The present invention enables multiple communication devices using distinct communications technologies, such as cellular telephone, traditional wire line telephone, packet based telephone, and computer supporting instant messaging applications, to communicate presence status to a single server to enable another subscriber to determine the best method to use to establish a communication channel with a subscriber.
申请公布号 US7983404(B1) 申请公布日期 2011.07.19
申请号 US20050263276 申请日期 2005.10.31
申请人 AT&T INTELLECTUAL PROPERTY II, L.P. 发明人 CROAK MARIAN;ESLAMBOLCHI HOSSEIN
分类号 H04M15/06;G06F15/173 主分类号 H04M15/06
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