Image communication apparatus, method for controlling image communication apparatus, and storage medium
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United States of America Patent
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Jan 9, 2018
Grant Date -
Feb 9, 2017
app pub date -
Aug 4, 2016
filing date -
Aug 6, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention is intended to inhibit off-hook using a hook key in an operation unit to make a caller ID function stably usable in an image communication apparatus connectable to a telephone line and having a caller ID display function. According to one embodiment, the image communication apparatus includes an off-hook unit configured to perform the off-hook using the hook key in the operation unit, a detection unit configured to detect polarity reversal of a telephone line, a receiving unit configured to receive an information service signal, which arrives via the telephone line, after the detection unit has detected the polarity reversal, and a control unit configured to perform control to inhibit the off-hook by the off-hook unit based on the detection of the polarity reversal by the detection unit.
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