Modem for a tight coupling between a computer and a cellular telephone
作者： Randall L. Jones , Huyen B. Tran , Paul E. Nagel , Robin T. Castell , Don A. Dykes
DOI:
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摘要: A modem (12) which includes connections (14, 16) for both land lines (18) and a cellular phone (22). The contains high low level routines that allow it to perform standard AT commands rationally when connected phone, further additional access specific features. An applications software program in computer the can provide number of options determining whether use line or are connected. First, default only if is not available. Alternatively, first signal strength sufficient. Further, file transfer operations be aborted remaining battery life insufficient reliably complete transfer.
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