Audio Response Unit (ARU)

A computer telephony system that uses voice storage and forwarding technology. ARUs can be passive or interactive. Passive ARUs simply play messages, whereas interactive ARUs play messages based on caller input.

Audio Menu

A verbal option provided by a phone recording. Audio selection menus are common in automated attendant, interactive voice response, and fax-on-demand systems. They are caller input prompts. Audio menus can direct you to speak commands or press keys on a touch-tone keypad.

Asynchronous Communication

A form of data transmission in which bits are transmitted without the use of a synchronising clock signal. Instead, each character is delivered with a start and stop bit surrounding it to indicate the beginning and end of the information. This is in contrast to synchronous communication, when data is delivered in blocks utilising a […]