! The first half is the original config file from our main office router:

controller T1 0/1/0
 framing esf
 linecode b8zs
 channel-group 0 timeslots 1-24 speed 64
!
controller T1 0/1/1
 framing esf
 linecode b8zs
 channel-group 0 timeslots 1-24 speed 64
!
controller T1 0/2/0
 framing esf
 linecode b8zs
 channel-group 0 timeslots 1-24 speed 64
!
controller T1 0/2/1
 framing esf
 linecode b8zs
! 
!
!
!
interface FastEthernet0/0
 ip address 192.168.2.253 255.255.255.0
 ip nat inside
 ip virtual-reassembly
 duplex auto
 speed auto
 no cdp enable
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
 no cdp enable
!
interface Serial0/1/0:0
 description Connection to Provider
 ip address 1.2.3.4 255.255.255.252
 ip access-group inboundfilters in
 ip access-group outboundfilters out
 no ip proxy-arp
 ip inspect KS-FW in
 ip nat outside
 ip virtual-reassembly
!
interface Serial0/1/1:0
 no ip address
 shutdown
!
interface Serial0/2/0:0
 no ip address
 encapsulation frame-relay
!
interface Serial0/2/0:0.101 point-to-point
 description Connected to remote office 1
 ip address 10.1.1.1 255.255.255.252
 ip nat inside
 ip virtual-reassembly
 frame-relay interface-dlci 101   
!
interface Serial0/2/0:0.102 point-to-point
 description Connection to remote office 2
 ip address 10.1.1.5 255.255.255.252
 ip nat inside
 ip virtual-reassembly
 frame-relay interface-dlci 102   
!
interface Serial0/2/0:0.103 point-to-point
 description Connection to remote office 3 0040287166
 ip address 10.1.1.9 255.255.255.252
 ip nat inside
 ip virtual-reassembly
 frame-relay interface-dlci 103   
!
interface Serial0/2/0:0.104 point-to-point
 description Connection to remote office 4
 ip address 10.1.1.13 255.255.255.252
 ip nat inside
 ip virtual-reassembly
 frame-relay interface-dlci 104   
!
interface Serial0/2/0:0.105 point-to-point
 description Connection to remote office 5
 ip address 10.1.1.17 255.255.255.252
 ip nat inside
 ip virtual-reassembly
 frame-relay interface-dlci 105   
!
interface Virtual-Template1
 description VPN Server Interface
 ip unnumbered Serial0/1/0:0
 ip nat inside
 ip virtual-reassembly
 peer default ip address pool vpnpool
 no keepalive
 ppp encrypt mppe auto
 ppp authentication pap chap ms-chap


--------------------------------------------------------------

! The following is part of the new config file we tried to upload:

controller T1 0/1/0
 framing esf
 linecode b8zs
 channel-group 0 timeslots 1-24 speed 64
!
controller T1 0/1/1
 framing esf
 linecode b8zs
 channel-group 0 timeslots 1-24 speed 64
!
controller T1 0/2/0
 framing esf
 linecode b8zs
 channel-group 0 timeslots 1-24 speed 64
!
controller T1 0/2/1
 framing esf
 linecode b8zs
! 
!
!
!
interface FastEthernet0/0
 ip address 192.168.2.253 255.255.255.0
 ip nat inside
 ip virtual-reassembly
 duplex auto
 speed auto
 no cdp enable
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
 no cdp enable
!
interface Serial0/1/0:0
 description Connection to provider
 ip address 1.2.3.4 255.255.255.252
 ip access-group inboundfilters in
 ip access-group outboundfilters out
 no ip proxy-arp
 ip inspect KS-FW in
 ip nat outside
 ip virtual-reassembly
!
interface Serial0/1/1:0
 description Local T1 Connection to remote office 5
 no ip address
 encapsulation hdlc
!
interface Serial0/1/1:0.105 point-to-point
 description Connection to remote office 5
 ip address 10.1.1.17 255.255.255.252
 ip nat inside
 ip virtual-reassembly
 hdlc interface dlci 105   
!
interface Serial0/2/0:0
 no ip address
 encapsulation frame-relay
!
interface Serial0/2/0:0.101 point-to-point
 description Connection to remote office 1
 ip address 10.1.1.1 255.255.255.252
 ip nat inside
 ip virtual-reassembly
 frame-relay interface-dlci 101   
!
interface Serial0/2/0:0.102 point-to-point
 description Connection to remote office 2
 ip address 10.1.1.5 255.255.255.252
 ip nat inside
 ip virtual-reassembly
 frame-relay interface-dlci 102   
!
interface Serial0/2/0:0.103 point-to-point
 description Connection to remote office 3
 ip address 10.1.1.9 255.255.255.252
 ip nat inside
 ip virtual-reassembly
 frame-relay interface-dlci 103   
!
interface Serial0/2/0:0.104 point-to-point
 description Connection to remote office 4
 ip address 10.1.1.13 255.255.255.252
 ip nat inside
 ip virtual-reassembly
 frame-relay interface-dlci 104   
!
interface Serial0/2/0:0.105 point-to-point
 description OLD Connection to remote office 5
 no ip address
 shutdown  
!
interface Virtual-Template1
 description VPN Server Interface
 ip unnumbered Serial0/1/0:0
 ip nat inside
 ip virtual-reassembly
 peer default ip address pool vpnpool
 no keepalive
 ppp encrypt mppe auto
 ppp authentication pap chap ms-chap