Problem on ISDN Backup line

Hello,
i have a remote site that have two WAN lines, one primary and the another is Backup ISDN (PPP), MY points is about the ISDN line i have made a configuration as the following:
interface BRI0/0/0
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type basic-net3
ppp authentication chap
interface Serial0/1/0
bandwidth 256
ip address 10.1.2.2 255.255.255.252
ip route-cache flow
service-policy output QoS-Policy
ip rtp header-compression
ip rtp priority 32000 1000 80
interface Virtual-Template1
no ip address
ppp multilink
ppp multilink interleave
ppp multilink fragment delay 20
ip rtp reserve 32000 1000 64
interface Vlan1
no ip address
no snmp trap link-status
interface Dialer1
ip address 192.168.99.14 255.255.255.252
encapsulation ppp
dialer pool 1
dialer remote-name cr-02
dialer idle-timeout 500
dialer string XXXX400
dialer load-threshold 128 either
dialer-group 1
no snmp trap link-status
no cdp enable
ppp authentication chap
router eigrp 1
network 10.0.0.0
network 192.168.99.0
no auto-summary
eigrp stub connected
ip route 0.0.0.0 0.0.0.0 10.100.1.1
ip route 0.0.0.0 0.0.0.0 192.168.99.13 20
But when the primary link is down the ISDN link doent come up, i tried to make a debugging it give me the following messege :
*Aug 4 06:42:27.275: ISDN BR0/0/0 **ERROR**: handle_l2d_srq_mail: Layer 1 inactive.
*Aug 4 06:42:29.507: ISDN BR0/0/0 Q921: L2_EstablishDataLink: sending SABME
*Aug 4 06:42:29.527: %ISDN-6-LAYER2UP: Layer 2 for Interface BR0/0/0, TEI 95 changed to up
*Aug 4 06:42:29.639: ISDN BR0/0/0 **ERROR**: host_disconnect_ack: Call rejected cause No circuit/channel available(0x22) call id 0x818D.
*Aug 4 06:42:31.271: ISDN BR0/0/0 Q931: Applying typeplan for sw-type 0x1 is 0x0 0x0, Called num XXXX400
*Aug 4 06:42:31.375: ISDN BR0/0/0 **ERROR**: host_disconnect_ack: Call rejected cause No circuit/channel available(0x22) call id 0x818E.
*Aug 4 06:42:33.271: ISDN BR0/0/0 Q931: Applying typeplan for sw-type 0x1 is 0x0 0x0, Called num XXXX400
*Aug 4 06:42:33.375: ISDN BR0/0/0 **ERROR**: host_disconnect_ack: Call rejected cause No circuit/channel available(0x22) call id 0x818F.
*Aug 4 06:42:35.271: ISDN BR0/0/0 Q931: Applying typeplan for sw-type 0x1 is 0x0 0x0, Called num XXXX400
*Aug 4 06:42:35.375: ISDN BR0/0/0 **ERROR**: host_disconnect_ack: Call rejected cause No circuit/channel available(0x22) call id 0x8190.
Success rate is 0 percent (0/5)
ar-BRH#
*Aug 4 06:42:50.375: %ISDN-6-LAYER2DOWN: Layer 2 for Interface BR0/0/0, TEI 95 changed to down
*Aug 4 06:42:50.383: ISDN BR0/0/0 Q931: Ux_DLRelInd: DL_REL_IND received from L2
ar-BRH#
*Aug 4 06:43:00.967: ISDN BR0/0/0 Q931: L3_ShutDown: Shutting down ISDN Layer 3
*Aug 4 06:43:00.971: ISDN BR0/0/0 Q931: Ux_DLRelInd: DL_REL_IND received from L2
Kindlly your help
THanks

Dharmesh
I do not believe that the original poster intended to use backup interface, and I do not believe that backup interface is necessarily needed here. The floating static default route points to the dialer interface:
ip route 0.0.0.0 0.0.0.0 10.100.1.1
ip route 0.0.0.0 0.0.0.0 192.168.99.13 20
and if the primary static default route is withdrawn the router will begin sending traffic to the dialer.
I do note that in the amount of configuration shown I do not see a way to get to 10.100.1.1 and so there may be a problem with the primary static default route. Or it may be that the address is reachable through some interface not shown in the posted config.
I believe that there is a more fundamental problem shown in the original post. One of the lines indicates that layer 1 is not active. If layer 1 is not active then nothing can be sent over this interface. Perhaps we could have posted the output of show isdn status. This would clarify the status of layer 1 and layer 2 for the ISDN.
HTH
Rick

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