Cisco Router Async Dial Back Config Example

version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname core
!
!
username peter callback-dialstring 2517 password cisco
username john callback-dialstring "" password cisco
!
!
chat-script backcall ABORT ERROR ABORT BUSY """ATZ" OK "ATDT \T" TIMEOUT 30 CONNECT \c
!
interface Loopback0
ip address 10.1.1.1 255.255.255.0
no ip directed-broadcast
!
interface Serial3/0
no shut
physical-layer async
ip unnumbered Loopback0
no ip directed-broadcast
encapsulation ppp
dialer in-band
dialer hold-queue 2 timeout 30
async mode interactive
peer default ip address pool lab
no cdp enable
ppp callback accept
ppp authentication chap
!
ip local pool lab 10.115.0.111 10.115.0.114
!

line 97
autoselect during-login
autoselect ppp
script callback backcall
login local
modem InOut
modem autoconfigure type usr_sportster
transport input all
callback forced-wait 30
stopbits 1
speed 115200
flowcontrol hardware
line aux 0
line vty 0 4
login local
!
end