Dual ISDN backup DDN configuration result

Two DDN configurations for ISDN backup:
Building configuration...
Current configuration: 1707 bytes
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Version 12.2:
Service timestamps debug uptime
Service timestamps log uptime
No service password-encryption
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Hostname XXXX
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Enable password XXX
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Username XXXX password 0 XXX
Ip subnet-zero
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Isdn switch-type basic-net3
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Interface BRI2/0
No ip address
Encapsulation ppp
Dialer pool-member 1
Isdn switch-type basic-net3
Isdn T310 4000
Ppp authentication chap
Ppp multilink
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Interface BRI2/1
No ip address
Encapsulation ppp
Dialer pool-member 1
Isdn switch-type basic-net3
Isdn T310 4000
Ppp authentication chap
Ppp multilink
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Interface BRI2/2
No ip address
Encapsulation hdlc
Shutdown
Isdn switch-type basic-net3
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Interface BRI2/3
No ip address
Encapsulation hdlc
Shutdown
Isdn switch-type basic-net3
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Interface FastEthernet3/0
Ip address 10.11.2.254 255.255.255.0 secondary
Ip address 10.11.1.254 255.255.255.0
Duplex auto
Speed auto
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Interface seri_3/0
Ip address 10.251.2.9 255.255.255.252
Encapsulation ppp
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Interface FastEthernet3/1
Ip address 10.102.1.254 255.255.255.0
Duplex auto
Speed auto
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Interface Dialer1
Ip address 10.252.2.9 255.255.255.252
Encapsulation ppp
Dialer pool 1
Dialer remote-name benburouter
Dialer idle-timeout 60
Dialer string XXXXXXX
Dialer string XXXXXXX
Dialer load-threshold 1 either
Dialer-group 1
Ppp authentication chap
Ppp multilink
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Ip classless
Ip route 10.12.1.0 255.255.255.0 10.251.2.10
Ip route 10.12.1.0 255.255.255.0 10.252.2.10 100
Ip route 10.202.1.0 255.255.255.0 10.251.2.10
Ip route 10.202.1.0 255.255.255.0 10.252.2.10 100
Ip http server
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Access-list 1 permit any
Dialer-list 1 protocol ip list 1
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Line con 0
Line aux 0
Line vty 0 4
Password
Login
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End