noun
automatic calling unit; ACU
Computing term for a device that automatically places calls or pages.
このシステムは自動呼び出し装置を使って、緊急時に担当者を呼び出す。
This system uses an automatic calling unit to page the person in charge in an emergency.
Standard kanji spelling.
Variant with 呼出し instead of 呼び出し; both are used.
Compound of 自動 (automatic) + 呼び出し (calling, paging) + 装置 (device, apparatus).