Continuous redial

{{Short description|Telephone services feature}}

{{use American English|date=September 2022}}

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Continuous redial, busy number redial, or repeat dial{{cite news |newspaper=The New York Times

|url=https://www.nytimes.com/1992/06/28/nyregion/phone-company-introduces-call-return-quietly.html

|title=Phone Company Introduces Call Return, Quietly

|author=Linda Saslow |date=June 28, 1992 |access-date=September 28, 2022}} is a vertical service code (calling feature)

that allows callers to automatically redial a busy telephone number until a connection is made. It was introduced in 1992 as Repeat Dialing, and is activated by dialing a combination of special characters and numbers after hanging up following a call to a busy line. It will run for a set period of time (such as 30 minutes) and can be deactivated by entering either the same set of numbers or a different set. The North American Numbering Plan assigned *66 to activate continuous redial and *86 to deactivate it.