| 摘要 |
Provided is a telephone switchboard capable of reliably making a notification to a notification destination when an abnormal sound is produced. A telephone switchboard (10) is connected to a plurality of terminals (201 to 215, 30) and comprises a plurality of speech paths (DSPs (121 to 128)), a digital switching circuit (11) for changing the connection between each of the terminals and each of the speech paths, and a CPU (13) for controlling the DSPs and the switching circuit (11). The CPU (13) performs control so that a speech path is preferentially assigned to the first terminal (201). The assigned DSP determines whether a sound inputted from the first terminal (201) via the switching circuit (11) is abnormal or not and, when determining that the sound is abnormal, notifies the CPU (13). The CPU (13) that has received the notification determines, based on the notification, a notification destination and performs notification processing for the notification destination. |
