autodialer

or au·to-di·al·er

[ aw-toh-dahy-uh-ler, -dahy-ler ]
/ ˈɔ toʊˌdaɪ ə lər, -ˌdaɪ lər /

noun

a telephone device that makes possible a service feature (autodial ) whereby a call is automatically made in response to a brief input signal from the user, as the pressing of a button: I programmed my number into the first memory slot of the autodialer on Grandma’s phone.
a computer program that dials phone numbers from a predetermined or algorithmically derived list, connecting a phone operator with one call after another, as in a telemarketing call center: The autodialer maximizes operators’ efficiency by connecting them only to the calls that are answered.
Also called au·to·mat·ic di·al·er [aw-tuh-mat-ik dahy-uh-ler] /ˌɔ təˈmæt ɪk ˌdaɪ ə lər/ (for defs. 1, 2) .

Origin of autodialer

First recorded in 1960–65; auto-3 + dialer
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020