hi,
I have an issue where inbound/outbound calls are getting dropped after few seconds. during that few seconds we can hear each other clearly.
there is cucm >> h323 gatway to cube >> cube >>isdn pri
debug isdn q921
*Sep 7 13:19:12.329: ISDN Se0/0/0:23 Q921: User RX <- RRp sapi=0 tei=0 nr=5
*Sep 7 13:19:12.329: ISDN Se0/0/0:23 Q921: User TX -> RRf sapi=0 tei=0 nr=331
debug isdn q931 is ON.
HOU-US-R1#
*Sep 7 13:19:22.357: ISDN Se0/0/0:23 Q921: User RX <- RRp sapi=0 tei=0 nr=5
*Sep 7 13:19:22.357: ISDN Se0/0/0:23 Q921: User TX -> RRf sapi=0 tei=0 nr=3
*Sep 7 13:19:32.413: ISDN Se0/0/0:23 Q921: User RX <- RRp sapi=0 tei=0 nr=5
*Sep 7 13:19:32.413: ISDN Se0/0/0:23 Q921: User TX -> RRf sapi=0 tei=0 nr=3
*Sep 7 13:19:42.497: ISDN Se0/0/0:23 Q921: User RX <- RRp sapi=0 tei=0 nr=5
*Sep 7 13:19:42.497: ISDN Se0/0/0:23 Q921: User TX -> RRf sapi=0 tei=0 nr=3
*Sep 7 13:19:52.593: ISDN Se0/0/0:23 Q921: User RX <- RRp sapi=0 tei=0 nr=5
*Sep 7 13:19:52.593: ISDN Se0/0/0:23 Q921: User TX -> RRf sapi=0 tei=0 nr=3
*Sep 7 13:20:02.721: ISDN Se0/0/0:23 Q921: User RX <- RRp sapi=0 tei=0 nr=5
sh interfaces serial 0/0/0:23
Serial0/0/0:23 is up, line protocol is up (spoofing)
Hardware is DSX1
MTU 1500 bytes, BW 64 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
Last input 00:00:01, output 00:00:01, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
520637 packets input, 2143062 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
2 runts, 1 giants, 0 throttles
3 input errors, 2 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
520681 packets output, 2102487 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
3 carrier transitions
Timeslot(s) Used:24, SCC: 0, Transmitter delay is 0 flags
Current configuration : 138 bytes
!
interface Serial0/0/0:23
no ip address
encapsulation hdlc
no cdp enable
isdn switch-type primary-ni
isdn incoming-voice voice
end
sh controllers t1 0/0/0 brief
T1 0/0/0 is up.
Applique type is Channelized T1
Cablelength is long 0db
No alarms detected.
alarm-trigger is not set
Soaking time: 3, Clearance time: 10
AIS State:Clear LOS State:Clear LOF State:Clear
Version info Firmware: 20100222, FPGA: 13, spm_count = 0
Framing is ESF, Line Code is B8ZS, Clock Source is Line.
CRC Threshold is 320. Reported from firmware is 320.
Data in current interval (330 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
Total Data (last 24 hours)
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
sh controllers t1
T1 0/0/0 is up.
Applique type is Channelized T1
Cablelength is long 0db
No alarms detected.
alarm-trigger is not set
Soaking time: 3, Clearance time: 10
AIS State:Clear LOS State:Clear LOF State:Clear
Version info Firmware: 20100222, FPGA: 13, spm_count = 0
Framing is ESF, Line Code is B8ZS, Clock Source is Line.
CRC Threshold is 320. Reported from firmware is 320.
Data in current interval (718 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
Total Data (last 24 hours)
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
sh isdn status
Global ISDN Switchtype = primary-ni
ISDN Serial0/0/0:23 interface
dsl 0, interface ISDN Switchtype = primary-ni
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 0, 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: 0x800003FF
Number of L2 Discards = 0, L2 Session ID = 15
Total Allocated ISDN CCBs = 0
Please if someone can guid me what could be wrong ?
