[cisco-voip] ISDN Q931 Question

[steve.siltman at assurant.com]

Hello VoIP Friends.

I want to verify I'm reading this debug correctly before I throw 
everything I have at Telco.  Intermittent calls are getting disconnected 
during the conversation mid-sentence.  Every one of these that are 
reported, I match up the CM traces with the debug.  I see the call comes 
in with the below SETUP message and I use the callref = to find when the 
call ended.   All calls say Normal call clearing.  Does the RX <- 
DISCONNECT mean that either Telco or the customer hung up first?

Oct 27 05:01:00.644: ISDN Se0/1/1:15 Q931: RX <- SETUP pd = 8  callref = 
0x0003
Oct 27 05:02:03.174: ISDN Se0/1/1:15 Q931: RX <- DISCONNECT pd = 8 callref 
= 0x0003
Cause i = 0x8090 - Normal call clearing


I'm also assuming that TX -> DISCONNECT means our side hung up the call 
first.

and last question.  What does RX <- RELEASE mean?

Thanks a ton!
-Steve

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