Apparatus for combining cellular telephone ring signals and PSTN ring signals
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United States of America Patent
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-
Jul 28, 1998
Issued Date -
N/A
app pub date -
Apr 24, 1996
filing date -
Jul 25, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A ring detection device which signals a modem in a personal communication device. A detector is connected to the cellular radio telephone for detecting an incoming telephone call. An oscillator circuit generates a ringing signal for enabling a modem in response to either the cellular telephone incoming call or a ring signal received over a directly-connected PSTN network. The modem for the personal communication device responds for providing communication over either the cellular network or directly-connected PSTN network.
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Family
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