CISCO 1603 router configuration

[akonwar]

I am trying to set up a cisco 1603 with ios version 11.3 for connecting internet network to internet the config file is like this:
but router is not dialing to inter net even if everything appears to be fine.
please help
akonwar
___________________________________
version 11.3
service timestamps debug datetime msec
service timestamps log uptime
service password-encryption
!
hostname wtcinternet
!
logging monitor notifications
enable password xxxx
!
clock timezone IST 5 30
ip subnet-zero
!
!
no ip domain lookup

!
isdn switch-type basic-net3
!
voice call carrier capacity active
!
!
interface Ethernet0
description connected to EthernetLAN
ip address 10.14.66.5 255.255.255.0
ip nat inside
speed auto
!
interface BRI0
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type basic-net3
ppp authentication pap chap callin
!
interface Dialer1
ip address negotiated
ip nat outside
encapsulation ppp
no ip split-horizon
dialer pool 1
dialer idle-timeout 179
dialer string 26213677
dialer-group 1
no cdp enable
ppp authentication chap pap callin
ppp chap hostname xxxx
ppp chap password xxx
ppp pap sent-username xxx password xx
!
!
!
router rip
version 2
passive-interface Ethernet0
passive-interface Dialer1
network 10.14.66.0
!
ip nat inside source list 115 interface Dialer1 overload
ip classless
no ip http server
!
!
access-list 115 permit ip host any any time-range http
access-list 115 permit udp host any eq domain any eq domain
access-list 115 deny ip any any
dialer-list 1 protocol ip list 115
!
!
!
!mgcp profile default
!
dial-peer cor custom
!
!

!
no scheduler allocate
ntp clock-period 17180050
ntp server 193.204.114.232 source Dialer1
time-range http
periodic daily 9:00 to 17:31
!
end