A system that uses responses from a touch tone telephone to gather and store data. An IVR is automated telephone information system that speaks to the caller with a combination of fixed voice menus and data extracted from databases in real time. The caller responds by pressing keys on the telephone keypad or speaking words or short phrases. This can also be used for voice self-service which can used to escalate customers to human-assisted service. It uses a human voice to read back. When set up with voice recognition software, data can be gathered through voice instead of touch tone. See also VRU.
