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Cisco IOS in a Nutshell, 2nd Edition by James Boney

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Name

dialer callback-server — interface

Synopsis

dialer callback-server [username] [dialstring]
no dialer callback-server

Configures

An interface to return calls

Default

Disabled

Description

This command enables an interface to return calls. The username keyword tells the router to identify the caller by looking up the authenticated hostname in the dialer map command; this is the default behavior for this command. The dialstring keyword tells the router to identify the caller during callback negotiation.

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