[cisco-voip] q931 cause codes

Wellnitz, Erick A. erick.wellnitz at kattenlaw.com
Mon Sep 19 16:46:34 EDT 2011


This is what I see in VLT detailed view:

Message Header
08 02 7E C2 45
-- DISCONNECT, pd = 8, callref = 0x7EC2

Information Element(s)
08 02 81 E6
-- Cause i = 0x0810E6 - Recovery on timer expiry

Entire Message:
0010: 08 02 7E C2 45 08 02 81 E6


From: Wes Sisk [mailto:wsisk at cisco.com]
Sent: Monday, September 19, 2011 3:24 PM
To: Wellnitz, Erick A.
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] q931 cause codes

Externally (communicated to to h.323 gateway or MGCP gateway) the cause codes do have to be in the subset of q.931 defined codes.

Internally (for call legs inside CUCM) there can be more cause codes. SDI logs contain both internal and external codes so you could see either there.  What is the complete trace line where you see that cause code?


I *think* in 0x0810E6 you're going to focus on 0x10 = 16(decimal) = normal call clearing.  It would be good to see the original SDI or SDL trace line to confirm.

http://www.cisco.com/en/US/docs/ios/11_0/debug/command/reference/disdn.html

Regards,
Wes

On Sep 19, 2011, at 3:59 PM, Wellnitz, Erick A. wrote:

Okay...are the q931 disconnect messages not consistent between debug isdn q931 and the sdi logs?

SDI log (via VLT) shows cause code of 0x0810E6 but this doesn't coincide with the Cisco documentation re: q931 cause codes.

http://www.cisco.com/en/US/tech/tk801/tk379/technologies_tech_note09186a008012e95f.shtml#topic1



ERICK A. WELLNITZ
Network Engineer
Katten Muchin Rosenman LLP
525 W. Monroe Street / Chicago, IL 60661-3693
p / (312) 577-8041
erick.wellnitz at kattenlaw.com<mailto:erick.wellnitz at kattenlaw.com> / www.kattenlaw.com<http://www.kattenlaw.com/>


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