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With both references configured, the device always attempts to place return calls in the user reference approach and in case failure occurs the dial number reference approach. If the command is configured with neither keyword, it equals the dialer callback-center user dial-numbercommand.

Related command: ppp callback in PPP Commands in Access Volume.

Example # Specify the device as the PPP callback server, and set the callback reference to user mode.

<Sysname> system-view [Sysname] interface serial2/0 [Sysname-Serial2/0] ppp callback server

[Sysname-Serial2/0] dialer callback-center user

[Sysname-Serial2/0] dialer route ip 1.1.1.2 user Sysnameb 8810052

#Specify the device as the PPP callback server, and set the callback reference to dial number mode.

<Sysname> system-view [Sysname] local-user usera

[Sysname-luser-usera] password simple usera

[Sysname-luser-usera] service-type ppp

[Sysname-luser-usera] service-type ppp callback-number 8810048

[Sysname-luser-usera] quit [Sysname] interface serial 2/0 [Sysname-Serial2/0] ppp callback server

[Sysname-Serial2/0] dialer callback-center dial-number

dialer call-in

Syntax dialer call-in remote-number[ callback ]

undo dialer call-in remote-number[ callback ]

View Dial interface (physical or dialer) view

Parameter remote-number: Used for matching ISDN calling numbers. The asterisks (*) represent any characters.

callback: Enables the device to place a return call if an incoming number matches the number specified by the remote-numberargument.

Description Use the dialer call-incommand to configure a valid ISDN calling number and with the callback keyword to enable callback for the number.

Use the undo dialer call-incommand to remove the setting.

By default, ISDN callback is disabled.

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