发明名称 Apparatus and methods for selectively communicating voice communications via a fee-based network and a nonfee-based spectrum
摘要 An apparatus and method for communicating voice communications to the communications devices of respective recipients thereof using multiple call modes, including, but not limited to, a fee-based network call mode and non-fee based mode. Generally, the fee-based call mode utilizes a wireless communications network to communicate voice communications over relatively large distances and the non-fee based call mode utilizes a proximity communication transport mechanism to communicate voice communications over relatively small distances. The non-network communication transport mechanism includes, for example, the unlicensed free radio spectrum. The apparatus is operable in either of the call modes or in an auto-select call mode in which the apparatus initially attempts to communicate voice communications via a proximity communication transport mechanism and if unsuccessful, subsequently communicates voice communications via a wireless communications network. The apparatus is configurable to operate in any of the call modes.
申请公布号 US7808945(B1) 申请公布日期 2010.10.05
申请号 US20050252861 申请日期 2005.10.18
申请人 AT&T MOBILITY II, LLC 发明人 GRAEFEN EDDY;CENCIARELLI FULVIO;HENRY COULTER C.
分类号 H04W4/00;H04M1/00 主分类号 H04W4/00
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