Communication apparatus, control method for communication apparatus, and storage medium

Communication apparatus, control method for communication apparatus, and storage medium

A communication apparatus, which captures a line in response to an off-hook operation, includes a first adjustment unit, a detection unit, and a second adjustment unit. The first adjustment unit performs first impedance adjustment according to detection of the off-hook operation. The detection unit...

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Hauptverfasser: Fukada, Hiroshi, Ohara, Eiji
Format: Patent
Sprache:eng
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ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TELEPHONIC COMMUNICATION
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creator Fukada, Hiroshi
Ohara, Eiji
description A communication apparatus, which captures a line in response to an off-hook operation, includes a first adjustment unit, a detection unit, and a second adjustment unit. The first adjustment unit performs first impedance adjustment according to detection of the off-hook operation. The detection unit detects a line current and a dial tone signal. The second adjustment unit performs second impedance adjustment based on the line current according to a result of detection of the dial tone signal by the detection unit after the first impedance adjustment is performed by the first adjustment unit.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TELEPHONIC COMMUNICATION
title Communication apparatus, control method for communication apparatus, and storage medium
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