Electra Elite IPK II Document Revision 4CClass of Service 2 - 203Class of ServiceDescriptionClass of Service (COS) sets various features and dialing options (called items) for extensions. Thesystem allows any number of extensions to share the same Class of Service. An extension can have adifferent Class of Service for each Night Service mode. This lets you program a different set of dialingoptions for daytime operation, nighttime operation and even during lunch breaks. An extension Class ofService can be changed in system programming or via a Service Code (normally 677). There are 15available Classes of Service.Conditions Before assigning a new COS, make sure the new COS matches the old COS or you mayenable options, which the extension should not have or remove options, which it shouldhave. An extension can have a different Class of Service for each Service mode. At default, theMode names are assigned as follows: Mode 1 = No setting Mode 2 = Night Mode 3 = Midnight Mode 4 = Rest Mode 5 = Day2 Mode 6 = Night2 Mode 7 = Midnight2 Mode 8 = Rest2 Program 20-11-27: Class of Service Options (Hold/Transfer Service) – Call ParkAutomatically Searched is not supported in Version 1600.EnhancementsVersion 1600 or higher, when a Ring Group call rings a station, a BLF Indication for this stationshows idle. Prior to this release, the BLF Indication showed busy.