Cisco ISDN BRI Configuration

Dear All,

I configured ISDN Bri line in cisco router,  and connection was up. But unfortunately today on wards i can't ping to destination IP. please help me to solve this problem.

please check below the isdn configuration details.

taherex1#sh isdn status
Global ISDN Switchtype = basic-net3
ISDN BRI0/0/0 interface
        dsl 0, interface ISDN Switchtype = basic-net3
    Layer 1 Status:
        ACTIVE
    Layer 2 Status:
        TEI = 82, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
    Layer 3 Status:
        0 Active Layer 3 Call(s)
    Active dsl 0 CCBs = 0
    The Free Channel Mask:  0x80000003
    Total Allocated ISDN CCBs = 0


taherex1#sh ip inter brie
Interface                  IP-Address      OK? Method Status                Protocol
Embedded-Service-Engine0/0 unassigned      YES NVRAM  administratively down down
GigabitEthernet0/0         192.168.1.50    YES NVRAM  up                    up
GigabitEthernet0/1         unassigned      YES NVRAM  administratively down down
BRI0/0/0                   unassigned      YES NVRAM  up                    up
BRI0/0/0:1                 unassigned      YES unset  down                  down
BRI0/0/0:2                 unassigned      YES unset  down                  down
Dialer1                    unassigned      YES IPCP   up                    up
NVI0                       unassigned      YES unset  administratively down down
Virtual-Access1            unassigned      YES unset  down                  down




taherex1#ping 131.5.15.15
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 131.5.15.15, timeout is 2 seconds:

*Nov 14 09:13:00.502: ISDN BR0/0/0 Q931: Sending SETUP  callref = 0x0045 callID = 0x80C4 switch = basic-net3 interface = User
*Nov 14 09:13:00.502: ISDN BR0/0/0 Q931: TX -> SETUP pd = 8  callref = 0x45
        Bearer Capability i = 0x8890
                Standard = CCITT
                Transfer Capability = Unrestricted Digital
                Transfer Mode = Circuit
                Transfer Rate = 64 kbit/s
        Channel ID i = 0x81
                Preferred, B1
        Called Party Number i = 0x80, '600200003'
                Plan:Unknown, Type:Unknown
*Nov 14 09:13:00.542: ISDN BR.0/0/0 Q931: RX <- SETUP_ACK pd = 8  callref = 0xC5
        Channel ID i = 0x89
                Exclusive, B1
        Progress Ind i = 0x8088 - In-band info or appropriate now available .
*Nov 14 09:13:04.534: ISDN BR0/0/0 Q931: RX <- CALL_PROC pd = 8  callref = 0xC5
*Nov 14 09:13:04.582: ISDN BR0/0/0 Q931: RX <- DISCONNECT pd = 8  callref = 0xC5
        Cause i = 0x809B - Destination out of order
*Nov 14 09:13:04.582: ISDN BR0/0/0 Q931: TX -> RELEASE pd = 8  callref = 0x45
        Cause i = 0x809B - Destination out of order
*Nov 14 09:13:04.610: ISDN BR0/0/0 Q931: RX <- RELEASE_COMP pd = 8  callref = 0xC5..
*Nov 14 09:13:07.582: ISDN BR0/0/0 Q931: Sending SETUP  callref = 0x0046 callID = 0x80C5 switch = basic-net3 interface = User
*Nov 14 09:13:07.582: ISDN BR0/0/0 Q931: TX -> SETUP pd = 8  callref = 0x46
        Bearer Capability i = 0x8890
                Standard = CCITT
                Transfer Capability = Unrestricted Digital
                Transfer Mode = Circuit
                Transfer Rate = 64 kbit/s
        Channel ID i = 0x81
                Preferred, B1
        Called Party Number i = 0x80, '600200083'
                Plan:Unknown, Type:Unknown
*Nov 14 09:13:07.622: ISDN BR0/0/0 Q931: RX <- SETUP_ACK pd = 8  callref = 0xC6
        Channel ID i = 0x89
                Exclusive, B1
        Progress Ind i = 0x8088 - In-band info or appropriate now available .
Success rate is 0 percent (0/5)
taherex1#
*Nov 14 09:13:11.614: ISDN BR0/0/0 Q931: RX <- CALL_PROC pd = 8  callref = 0xC6
*Nov 14 09:13:11.682: ISDN BR0/0/0 Q931: RX <- DISCONNECT pd = 8  callref = 0xC6
        Cause i = 0x809B - Destination out of order
*Nov 14 09:13:11.682: ISDN BR0/0/0 Q931: TX -> RELEASE pd = 8  callref = 0x46
        Cause i = 0x809B - Destination out of order
*Nov 14 09:13:11.710: ISDN BR0/0/0 Q931: RX <- RELEASE_COMP pd = 8  callref = 0xC6
taherex1#
taherex1#ping 131.5.15.15
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 131.5.15.15, timeout is 2 seconds:

*Nov 14 09:23:00.562: ISDN BR0/0/0 Q931: Sending SETUP  callref = 0x0047 callID = 0x80C6 switch = basic-net3 interface = User
*Nov 14 09:23:00.562: ISDN BR0/0/0 Q931: TX -> SETUP pd = 8  callref = 0x47
        Bearer Capability i = 0x8890
                Standard = CCITT
                Transfer Capability = Unrestricted Digital
                Transfer Mode = Circuit
                Transfer Rate = 64 kbit/s
        Channel ID i = 0x81
                Preferred, B1
        Called Party Number i = 0x80, '600200003'
                Plan:Unknown, Type:Unknown
*Nov 14 09:23:00.602: ISDN BR.0/0/0 Q931: RX <- SETUP_ACK pd = 8  callref = 0xC7
        Channel ID i = 0x89