I HAVE ONE PROBLEM WITH SX 50 EVERY MORNING 8:30AM EXT 112 AND 113 (STATION 13 AND 14)LOCKED OUT ITSELF WITH ALARM CODE A85 0013 LOCKEDOUT 01/13 AT 4:45PM SAME ALARM RESET ALL THIS PROBLEM AND SYETEM WORK FINE UNTIL NEXT MORNING. I CHECK ALAEM CODE AND DISCONNECT ALL PHONE FROM THIS EXT. ALSO I CAN MAKE OUT SIDE CALL FROM EXT 113 BUT CAN NOT CALL COUNSOLE. EXT 112 IS MY NIGHT SERVICE POINT AND ALSO RING OUTSIDE PHONE.

I JUST REPLACED EXTATION CARD AFTER WEEK OF REPLACE THIS PROBLEM STARTED.