07-21-2006 04:53 AM
Hi to all
Here is the problem
I have 2811 connected through WVIC-MFT-E1 to the telco using ISDN PRI service.
IPT using CCM 4.2.
Every call I made out and in to the PSTN gets dropped on the exactly 5th minute (300 sec) with cause code 127 interworking error
18F1 : 14740 882840880ms.14758 +160 +300900 pid:200 Answer 08070707#
dur 00:05:00 tx:14802/2486736 rx:14987/2397920 7F (interworking (127))
Telephony 3/0 (14740) [3/0] tx:278170/278170/0ms g711alaw noise:-67dBm acom:-29dBm
18F1 : 14742 882840950ms.14759 +90 +302820 pid:3334 Originate 600
dur 00:05:02 tx:14860/2377600 rx:14804/2368640 7F (interworking (127))
IP 192.168.5.29:16384 SRTP: off rtt:0ms pl:277790/0ms lost:0/2/0 delay:55/55/65ms g711alaw
media inactive detected:n media contrl rcvd:n/a timestamp:n/a
I get slips on the line:
R2811-B#sh controllers e1 0/0/0
E1 0/0/0 is up.
Applique type is Channelized E1 - balanced
Description: BTC_PRI_LINE
No alarms detected.
alarm-trigger is not set
Version info Firmware: 20051006, FPGA: 20, 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 (788 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
8 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
8 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
And here is the configuration:
controller E1 0/0/0
linecoding hdb3
framing crc4
clock source line
pri-group timeslots 1-31
interface Serial0/0/0:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn overlap-receiving
isdn incoming-voice voice
isdn send-alerting
isdn bchan-number-order ascending round-robin
no cdp enable
end
The telco said that this is not their problem.
Any suggestion might be useful.
Thanks in advance
07-21-2006 08:46 AM
Hi!
Can you post "debug isdn q921" and "debug isdn q931" for a call?
Ivan
07-23-2006 10:35 PM
As suggested, post a Q.931 debug output here.
It is important to know which side drops the call with DC 127.
Might be the, CCM is sending some QSIG-ed facility to the gateway which is then transmitted to the ISDN link.
07-24-2006 09:20 AM
Hi to all,
I found the problem ? there is a pix between the call manager and phones network, and the gateway.This f? device was droping the udp connection after exactly 5 minutes because it is considering it as idle ? why? I don?t know
Thanks for the help to all that responded ? sorry I cant send debugs now because I obviously didn?t save any.
Have a great evening/day
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