Samsung System Administration GuideDCS-408 & 408i November 2001iC ONTENTSAbout This Guide.................................................................... 1Special Features..................................................................... 2Night Service Operation .......................................................................... 2Automatic Night Service....................................................................................... 2Manual Night Service ........................................................................................... 2Calling The System Operator .................................................................. 2Operator Recalls ..................................................................................... 2Executive Barge-In .................................................................................. 3Walking Class Of Service (WCOS) ......................................................... 3In/Out Of Group....................................................................................... 4Operator Group .................................................................................................... 4Direct Inward System Access (DISA) ...................................................... 4DISA Security .......................................................................................... 5Account Codes ........................................................................................ 5Authorisation Codes ................................................................................ 6Using the Tieline...................................................................................... 6CLIP (Calling Line Identification Presentation)Special Features..................................................................... 7Investigate (ISPY) ................................................................................... 7Abandoned Calls List (50) ....................................................................... 7Number to Name Translation ................................................................. 8