Patent ID: 9300788
Filing Date: 2016-03-29
CPC Classification: H04M

Claim Text:
1. An apparatus which accepts a connection of a telephone and connects to a telephone line, the apparatus comprising: a controller configured to control ringer impedance of the telephone line to be compliant with a standard; a detecting unit configured to detect a ringing signal received from the telephone line; a determining unit configured to determine whether the telephone captures the telephone line; a suppression unit configured to disable the ringer impedance control by the controller until the detecting unit detects the ringing signal; and a cancelling unit configured to cancel a disablement of the ringer impedance control, wherein the cancelling unit cancels the disablement of the ringer impedance control in a case where the detecting unit detects the ringing signal, and wherein the suppression unit disables the ringer impedance control by the controller in a case where the determining unit determines that the telephone captures the telephone line after the detecting unit detects the ringing signal and the cancelling unit cancels the disablement of the ringer impedance control.