if you are talking about an ISDN E1 then to this:
STISR;
STUNI:UNIT=SLP60,LIM=X,MSKSIG=02&03&A1,STORE=YES;
STTSI:TRI=1;
/* make testcalls */
STTSE:TRI=1;
/* OPEN LOGFILE */
STRAP:TRI=1;
/* CLOSE LOGFILE */
you can analyze the logfile with Signal trace Interpreter (It can be found in the SAM toolboox suite)
/Daddy
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