Method and apparatus for bypassing a cellular modem pool during a fax transmission
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 6, 1999
Grant Date -
N/A
app pub date -
Dec 18, 1995
filing date -
Dec 18, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cellular modem pool provides a 'transparent call progress' feature where each modem pair of the cellular modem pool is coupled to a cross-connect switch, which communicates call progress information between the cellular-side and the PSTN-side during data call setup. The modem pair of the cellular modem pool monitors the call progress information for a data signal provided by a DCE of the calling party, e.g., a predefined fax calling tone. Once the fax calling tone is detected, the modem pair prohibits the opening of the connection provided by the cross-connect switch. This enables the transparent call progress feature for the duration of the fax call thereby routing the fax call around the modem pair.
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Family
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Cited Art Landscape
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