Wireless local loop system and method
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United States of America Patent
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-
Mar 16, 1999
Grant Date -
N/A
app pub date -
Jul 8, 1996
filing date -
Jul 8, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system and method for setting up a telephone call over a communication path having at least one wireless communication link comprises a universal radio converter (URC) connected to a standard non-wireless device by way of a standard analog interface over which DTMF tone signals are transmitted. Upon receiving the first tone signal, the URC establishes a wireless communication link with a base station. After the communication link is established, the URC transmits to the base station the dialed numbers as they are received from the standard non-wireless device. The base station performs digit analysis as the dialed numbers are received according to a local call numbering format, and sends a call setup request message to the network. A preferred URC is equipped with means to detect an emergency call request, such as a '911' call, upon which the URC establishes a wireless communication link over an emergency call channel. The invention is illustrated in one embodiment with respect to a preferred TDMA over-the-air protocol.
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