Dear Team,
Please find the attached running config and logs.Incoming and outgoing calls are landing on the gateway properly. But call stop working every five min.PRI is up and no error on controller E1.
Please advise how to identify the issue?
CUCM version 4.2
debug isdn q921
*Sep 2 08:48:21.874: ISDN Se0/0/1:15 Q921: User TX -> INFO sapi=0 tei=0, ns=2 nr=34
*Sep 2 08:48:21.890: ISDN Se0/0/1:15 Q921: User RX <- RR sapi=0 tei=0 nr=3
*Sep 2 08:48:21.942: ISDN Se0/0/1:15 Q921: User RX <- INFO sapi=0 tei=0, ns=34 nr=3
*Sep 2 08:48:21.942: ISDN Se0/0/1:15 Q921: User TX -> RR sapi=0 tei=0 nr=35
*Sep 2 08:48:27.866: ISDN Se0/0/1:15 Q921: User RX <- INFO sapi=0 tei=0, ns=35 nr=3
*Sep 2 08:48:27.866: ISDN Se0/0/1:15 Q921: User TX -> RR sapi=0 tei=0 nr=36
*Sep 2 08:48:34.322: ISDN Se0/0/1:15 Q921: User RX <- INFO sapi=0 tei=0, ns=36 nr=3
*Sep 2 08:48:34.322: ISDN Se0/0/1:15 Q921: User TX -> RR sapi=0 tei=0 nr=37
*Sep 2 08:48:34.326: %ISDN-6-CONNECT: Interface Serial0/0/1:27 is now connected to 0503726912 N/A
*Sep 2 08:48:34.326: ISDN Se0/0/1:15 Q921: User TX -> INFO sapi=0 tei=0, ns=3 nr=37
*Sep 2 08:48:34.342: ISDN Se0/0/1:15 Q921: User RX <- RR sapi=0 tei=0 nr=4
*Sep 2 08:48:39.694: %ISDN-6-DISCONNECT: Interface Serial0/0/1:29 disconnected from 0094777382372 , call lasted 181 seconds
*Sep 2 08:48:39.698: ISDN Se0/0/1:15 Q921: User TX -> INFO sapi=0 tei=0, ns=4 nr=37
*Sep 2 08:48:39.706: ISDN Se0/0/1:15 Q921: User RX <- RR sapi=0 tei=0 nr=5
*Sep 2 08:48:39.730: ISDN Se0/0/1:15 Q921: User RX <- INFO sapi=0 tei=0, ns=37 nr=5
*Sep 2 08:48:39.730: ISDN Se0/0/1:15 Q921: User TX -> RR sapi=0 tei=0 nr=38
*Sep 2 08:48:39.734: ISDN Se0/0/1:15 Q921: User TX -> INFO sapi=0 tei=0, ns=5 nr=38
*Sep 2 08:48:39.746: ISDN Se0/0/1:15 Q921: User RX <- RR sapi=0 voice-port 0/1/2
*Sep 2 08:48:49.746: ISDN Se0/0/1:15 Q921: User TX -> RRp sapi=0 tei=0 nr=38
*Sep 2 08:48:49.758: ISDN Se0/0/1:15 Q921: User RX <- RRf sapi=0 tei=0 nrsh
*Sep 2 08:48:59.762: ISDN Se0/0/1:15 Q921: User TX -> RRp sapi=0 tei=0 nr=38
*Sep 2 08:48:59.766: ISDN Se0/0/1:15 Q921: User RX <- RRf sapi=0 tei=0 nr
*Sep 2 08:49:01.946: ISDN Se0/0/1:15 Q921: User RX <- INFO sapi=0 tei=0, ns=38 nr=6
*Sep 2 08:49:01.950: ISDN Se0/0/1:15 Q921: User TX -> RR sapi=0 tei=0 nr=39
*Sep 2 08:49:01.950: %ISDN-6-DISCONNECT: Interface Serial0/0/1:27 disconnected from 0503726912 , call lasted 27 seconds
Voice-Gw#
Voice-Gw#
Voice-Gw#
Voice-Gw#
*Sep 2 08:49:01.954: ISDN Se0/0/1:15 Q921: User TX -> INFO sapi=0 tei=0, ns=6 nr=39
*Sep 2 08:49:01.962: ISDN Se0/0/1:15 Q921: User RX <- RR sapi=0 tei=0 nr=7
*Sep 2 08:49:02.034: ISDN Se0/0/1:15 Q921: User RX <- INFO sapi=0 tei=0, ns=39 nr=7
*Sep 2 08:49:02.034: ISDN Se0/0/1:15 Q921: User TX -> RR sapi=0 tei=0 nr=40
controller E1 0/0/1
pri-group timeslots 1-31
interface Serial0/0/1:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn incoming-voice voice
no cdp enable
=======================
Voice-Gw#
*Sep 2 08:55:25.214: ISDN Se0/0/1:15 Q921: User RX <- INFO sapi=0 tei=0, ns=71 nr=27
*Sep 2 08:55:25.214: ISDN Se0/0/1:15 Q921: User TX -> RR sapi=0 tei=0 nr=72
*Sep 2 08:55:25.234: ISDN Se0/0/1:15 Q921: User TX -> INFO sapi=0 tei=0, ns=27 nr=72
*Sep 2 08:55:25.246: ISDN Se0/0/1:15 Q921: User TX -> INFO sapi=0 tei=0, ns=28 nr=72
*Sep 2 08:55:25.250: ISDN Se0/0/1:15 Q921: User RX <- RR sapi=0 tei=0 nr=28
*Sep 2 08:55:25.258: ISDN Se0/0/1:15 Q921: User RX <- RR sapi=0 tei=0 nr=29
*Sep 2 08:55:27.518: ISDN Se0/0/1:15 Q921: User RX <- INFO sapi=0 tei=0, ns=72 nr=29
*Sep 2 08:55:27.518: ISDN Se0/0/1:15 Q921: User TX -> RR sapi=0 tei=0 nr=73
*Sep 2 08:55:27.522: ISDN Se0/0/1:15 Q921: User TX -> INFO sapi=0 tei=0, ns=29 nr=73
*Sep 2 08:55:27.534: ISDN Se0/0/1:15 Q921: User RX <- RR sapi=0 tei=0 nr=30
*Sep 2 08:55:27.546: ISDN Se0/0/1:15 Q921: User RX <- INFO sapi=0 tei=0, ns=73 nr=30
*Sep 2 08:55:27.546: ISDN Se0/0/1:15 Q921: User TX -> RR sapi=0 tei=0 nr=74
*Sep 2 08:55:33.318: ISDN Se0/0/1:15 Q921: User TX -> INFO sapi=0 tei=0, ns=30 nr=74
*Sep 2 08:55:33.330: ISDN Se0/0/1:15 Q921: User RX <- RR sapi=0 tei=0 nr=31
*Sep 2 08:55:33.390: ISDN Se0/0/1:15 Q921: User RX <- INFO sapi=0 tei=0, ns=74 nr=31
*Sep 2 08:55:33.394: ISDN Se0/0/1:15 Q921: User TX -> RR sapi=0 tei=0 nr=75
*Sep 2 08:55:37.190: ISDN Se0/0/1:15 Q921: User RX <- INFO sapi=0 tei=0, ns=75 nr=31
*Sep 2 08:55:37.194: ISDN Se0/0/1:15 Q921: User TX -> RR sapi=0 tei=0 nr=76
*Sep 2 08:55:38.534: ISDN Se0/0/1:15 Q921: User RX <- INFO sapi=0 tei=0, ns=76 nr=31
*Sep 2 08:55:38.534: ISDN Se0/0/1:15 Q921: User TX -> RR sapi=0 tei=0 nr=77
*Sep 2 08:55:38.538: %ISDN-6-CONNECT: Interface Serial0/0/1:27 is now connected to 0504312690 N/A
*Sep 2 08:55:38.538: ISDN Se0/0/1:15 Q921: User TX -> INFO sapi=0 tei=0, ns=31 nr=77
*Sep 2 08:55:38.554: ISDN Se0/0/1:15 Q921: User RX <- RR sapi=0 tei=0 nr=32
*Sep 2 08:55:42.542: ISDN Se0/0/1:15 Q921: User TX -> INFO sapi=0 tei=0, ns=32 nr=77
*Sep 2 08:55:42.554: ISDN Se0/0/1:15 Q921: User RX <- RR sapi=0 tei=0 nr=33
*Sep 2 08:55:42.606: ISDN Se0/0/1:15 Q921: User RX <- INFO sapi=0 tei=0, ns=77 nr=33
*Sep 2 08:55:42.606: ISDN Se0/0/1:15 Q921: User TX -> RR sapi=0 tei=0 nr=78
*Sep 2 08:55:46.766: ISDN Se0/0/1:15 Q921: User RX <- INFO sapi=0 tei=0, ns=78 nr=3
% Invalid input detected at '^' marker.
Voice-Gw#sh controllers e1 0/0/1
E1 0/0/1 is up.
Applique type is Channelized E1 - balanced
No alarms detected.
alarm-trigger is not set
Version info Firmware: 20060711, FPGA: 13, spm_count = 0
Framing is CRC4, Line Code is HDB3, Clock Source is Line.
CRC Threshold is 320. Reported from firmware is 320.
Data in current interval (99 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Voice-Gw#
Voice-Gw(config)#do sh isdn statu
Global ISDN Switchtype = primary-net5
ISDN Serial0/0/0:15 interface
dsl 0, interface ISDN Switchtype = primary-net5
Layer 1 Status:
DEACTIVATED
Layer 2 Status:
TEI = 0, Ces = 1, SAPI = 0, State = TEI_ASSIGNED
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 0 CCBs = 0
The Free Channel Mask: 0x00000000
Number of L2 Discards = 0, L2 Session ID = 0
ISDN Serial0/0/1:15 interface
dsl 1, interface ISDN Switchtype = primary-net5
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 0, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
Layer 3 Status:
3 Active Layer 3 Call(s)
CCB:callid=E3C0, sapi=0, ces=0, B-chan=30, calltype=VOICE
CCB:callid=E3C6, sapi=0, ces=0, B-chan=31, calltype=VOICE
CCB:callid=E3CB, sapi=0, ces=0, B-chan=29, calltype=VOICE
Active dsl 1 CCBs = 3
The Free Channel Mask: 0x8FFF7FFF
Number of L2 Discards = 0, L2 Session ID = 2
Total Allocated ISDN CCBs = 3
