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Definition Edit

Call back (also called dial back) is a

procedure for identifying a remote terminal. In a "call back," the host system disconnects the caller and then dials the authorized telephone number of the remote terminal to reestablish the connection.[1]
[a]n authentication technique for terminals that remotely access a computer via telephone lines; the host system disconnects the caller and then reconnects on a telephone number that was previously authorized for that terminal.[2]

References Edit

  1. Federal Standard 1037C:Glossary.
  2. RFC 4949, at 44.

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