demon dialing

English

Etymology

From the Demon Dialer product from Zoom Telephonics, Inc., a telephone device produced in the 1980s which repeatedly dialed busy telephone numbers under control of an extension phone.

Noun

demon dialing (uncountable)

1. (telephony) The use of a computer to dial a number repeatedly (usually to a crowded modem pool) in an attempt to gain access immediately after another user has hung up.

See also

• war-dial