Hi lancbomb,
Some data for VERY old version BC6 and DIG phone:
This can give you a hint.
1.SACOP:LIM=, UNIT=DCP,FILNO=1,POINT=XYZ,OFF=0&1;
where XYZ=multno
2. SACOP:LIM= ,UNIT=KLP1T2,FILNO=2,POINT=XX,OFF=23;
where XX is the result from 1.
3.FTSAS:LIM= ,UNIT=KLP1T2,SIGAR=1,STATE=0,SIG=86,BYTE=1-00&2-XX&3-00.
4.FTSSI:SIGAR=1;
I'll check PLEX for BC9-11. But can't do it right now.
Regards