noun
audio response unit; voice response unit
Computing term for a system that provides spoken responses to user input, such as in telephone banking or automated customer service.
音声応答装置を使って、電話で残高を確認できます。
You can check your balance by phone using the audio response unit.
Compound of 音声 (voice, speech), 応答 (response), and 装置 (device, unit).