发明名称 Method and apparatus for providing extension management in voice over internet protocol premises
摘要 A method and apparatus for allowing all the extensions connected to an enhanced Terminal Adaptor (TA) associated with a single phone number to place and receive phone calls independently are disclosed. For example, in the case of a call waiting scenario, if an extension is already engaged in an ongoing phone call, then the enhanced TA provides call waiting handling to the engaged extension similar to traditional call waiting when a subsequent incoming call is received. However, the enhanced TA also rings the remaining extensions that are not currently engaged in phone calls when the subsequent incoming call is received.
申请公布号 US7620164(B1) 申请公布日期 2009.11.17
申请号 US20050314285 申请日期 2005.12.21
申请人 AT&T CORP. 发明人 FARAH JEFFREY J.
分类号 H04M13/00 主分类号 H04M13/00
代理机构 代理人
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