version 12.0
　　service exec-callback
　　!--- This command enables the Cisco IOS software to return a call to a
　　!--- device that dials in, connects to the EXEC, and requests callback.
　　service timestamps debug datetime msec
　　service timestamps log datetime msec
　　no service passWord-encryption
　　!
　　hostname maui-nas-04
　　!
　　enable secret 5
　　!
　　username austin-01 nocallback-verify callback-dialstring 84001 password 0 xxxxx
　　!--- Does not require authentication after callback.
　　!--- This string applies to the "no-verify callback" scenario
　　username austin-02 callback-dialstring "" password 0 xxxxx
　　!--- For mobile users. Client specifies the callback number.
　　!--- This string applies to the "callback to any number with verification"
　　!--- scenario
　　!
　　ip subnet-zero
　　chat-script offhook "" "ATH1" OK
　　chat-script rtp ABORT ERROR ABORT BUSY "" "AT" OK "ATDT T" TIMEOUT 45 CONNECT c
　　!--- This is the chat script used to dial the callback number.
　　interface Ethernet0/0
　　 ip address 10.0.0.1 255.0.0.0
　　 no ip directed-broadcast
　　!
　　ip classless
　　!
　　line con 0
　　 transport input none
　　line 65 70
　　line aux 0
　　 script modem-off-hook offhook
　　 script callback rtp
　　 !--- Use chat script rtp for the callback
　　 login local
　　 modem InOut
　　 transport input all
　　 callback forced-wait 5
　　 !--- Wait 5 seconds before initiating the callback. This prevents problems with
　　 !--- the router passing the callback string back to the modem before it is
　　 !--- ready to dial the callback connection.
　　 flowcontrol hardware
　　 line vty 0 4
　　 login local
　　!
　　end

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