How to read CCM Traces

[JustForVoice_2]

Hi All,

When I am reading CCM traces I have problem in collecting related lines to gother like below:

03/15/1993 23:05:27.995 CCM|Ie - H225CallingPartyIe IEData= 6C 06 00 81 36 36 30 33 |<CLID::StandAloneCluster><NID::10.10.10.10><LVL::State Transition><MASK::0040>
03/15/1993 23:05:27.995 CCM|Ie - Q931CalledPartyIe IEData= 70 0A 80 30 31 31 37 37 37 30 30 33 |<CLID::StandAloneCluster><NID::10.10.10.10><LVL::State Transition><MASK::0040>

I can know that the calling number is 6603

Called Number 01177703

But how I can know that this disconnect message related to this call:

03/15/1993 23:05:28.482 CCM|Ie - Q931CauseIe -- IEData= 08 02 80 81 |<CLID::StandAloneCluster><NID::10.10.10.10><LVL::State Transition><MASK::0040>

And any body can tell me what is the meaning of the mask?

[JustForVoice_2]

No body from Cisco TAC

[Craig Cooper]

Hi JustForVoice,

The easiest way is to download TranslatorX and see what it looks like in the regular IOS style Q931 translation:
http://www.employees.org/~pgiralt/TranslatorX

The last two digits of the callref are used to identify everything that relates to the same call.

Kind regards,

Craig

[JustForVoice_2]

Thank you too much for your reply

but can you tell me where is the CallRef in the lines that I posted before? do you mean the Mask?

Thanks in advanced

[Craig Cooper]

The callref is contained within the hex that can be translated using TranslatorX, or the Q931Translator (provided with the old Windows based CallManagers), or with the Cisco Voice Log Translator tool (available on Cisco.com).

Kind regards,

Craig Cooper

[JustForVoice_2]

I think CallRef is only available if there is a connected call it is not available during the signaling

I tested now the Translator X , most of lines without CallRef/ID

So again how I can know that this line is a reply for that line I am very confused.

[Craig Cooper]

I believe the CallRef is provided in the hex of the lines above those two.   I just confirmed that those two lines only related to Information Elements for the call, and are not the complete message.

If you have the entire CCM trace file available, and use TranslatorX on that, then you should see the Q.931 translation.

Kind regards,

Craig Cooper

[JustForVoice_2]

I think Translator X use more than one line to creat the output.

you are right I found two lines in Translator X for the same CallRef or for the same two digits in CallRef.

But I did not find the Call Ref in traces

[Jason Burns]

You can track and H.323 or ISDN call in the traces by the ISDN Identifier portion in the ISDN hex portion of the message:

https://supportforums.cisco.com/docs/DOC-11779#Find_the_Outbound_H225_Setup

11:45:32.212 CCM|IsdnMsgData1= 08 02 80 03 02 7E 00 55 05 21 80 06 00 08 91 4A 00

80 03

and

00 03

are the same ISDN identifier. The first digit is the direction. One direction will be X and the opposite will be X+8. In this case the 80 03 is for all outbound messages for this call, and 00 03 is for all inbound messages for this call.