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ISDN ERROR MESSAGE

Hi

Does anyone know or can they point me to a ISDN error doc on cisco website. I have a router dialling a UK number but the call is getting dropped.

The isdn debug output is below - I am getting a host disconnect and am making an assumption its froom the remote ISDN number I am trying to connect to as my local L2 ISDN sapi/tei communication with the isdn switch is good.

Any help appreciated

Mary

**ERROR**: host_disconnect_ack: Unfound B-channel on Disconnect_Ack call id 0x8010.

*Jun 27 11:23:16 UTC: BR0 DDR: rotor dialout [best] least recent failure is also most recent failure

*Jun 27 11:23:16 UTC: BR0 DDR: rotor dialout [best]

*Jun 27 11:23:16 UTC: BR0 DDR: place call

*Jun 27 11:23:17 UTC: BR0 DDR: Dialing cause ip (s=10.0.0.5, d=10.0.0.6)

*Jun 27 11:23:17 UTC: BR0 DDR: Attempting to dial 00441737826576....

*Jun 27 11:23:25 UTC: ISDN BR0 **ERROR**: host_disconnect_ack: Unfound B-channel on Disconnect_Ack call id 0x8010.

*Jun 27 11:25:25 UTC: DDR: Dialing failed, 5 packets unqueued and discarded

*Jun 27 11:25:25 UTC: ISDN BR0 **ERROR**: CCBRI_Go: NO CCB Src->HOST call id 0x8011, event 0x5 ces 1921

*Jun 27 11:27:33 UTC: ISDN BR0 EVENT: UserIdle: callid 0x8013 received ISDN_CALL (0x0)

*Jun 27 11:27:33 UTC: ISDN BR0 EVENT: process_bri_call: call id 0x8013, called_number 00441737826576, Guid 0004E08881D6 speed 64, call type DATA, bchan -1 clng_num none....

*Jun 27 11:27:41 UTC: ISDN BR0 EVENT: process_rxstate: ces/callid 1/0x8013 calltype 1 HOST_DISCONNECT_ACK

*Jun 27 11:27:41 UTC: ISDN BR0 **ERROR**: host_disconnect_ack: Unfound B-channel on Disconnect_Ack call id 0x8013.

2 REPLIES
Hall of Fame Super Gold

Re: ISDN ERROR MESSAGE

Take "debug isdn q931" with "term mon" and you should see why the call is dropped.

Re: ISDN ERROR MESSAGE

Do a show ISDN status.

depending on the output you can give the debug command.

debug isdn q931 or q921.

If possible get the output for:

Show isdn status

sh ip int brief

sh tech-support.

sh dialer map.

debug isdn q921

debug isdn q931

Check link below

http://www.cisco.com/en/US/docs/internetworking/troubleshooting/guide/tr1917.html

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