What the problem do you have?
If you want to read ISDN signal traces from MD110, please don't hurry up!
Manual reading SLP60 messages it is very uncomfortable, boring and take huge time.
You will get much more fan using already existing programs.
For BC10-BC11 you can use Signal Trace Interpreter from SAM toolbox from E///.
For BC8&BC9 you can take "Tracer" program from
This programs written by V.Perelygin and will bring you good readable result.
Don't use program from SAM tool for BC9 and below - it will not work.
The last advice.
If you (your company) have money, by EXTERNAL ISDN tester.
You will get the same result in real time mode, at least 10 times faster.
Regards