Program 20 : System Option Setup20-09 : Class of Service Options (Incoming Call Service)Level:INDescriptionUse Program 20-09 : Class of Service Options (Incoming Call Service) to define the incoming callfeature availability for each extension Class of Service (COS).Input DataClass of Service Number 01 ~ 15ItemNo.Item Input Data Description Default RelatedProgram01 Second Call forDID/DISA/DIL/E&MOverride0 = Off (2nd call will notbe allowed.)1 = On (2nd call is al-lowed.)Turns off or on the extension abilityto receive a second call from a DID,DISA, DIL, or tie line caller.With this option set to 1, the des-tination extension must be busyfor a second DNIS caller to ringthrough. If the destination exten-sion does not have a trunk keyavailable for the second call anda previous call is ringing the ex-tension but has not yet been an-swered, the second caller hearsbusy regardless of this programsetting.COS 01 ~ 15 = 102 Caller ID Display 0 = Off1 = OnTurns off or on the Caller ID displayat an extension.COS 01 ~ 15 = 1(V1.5 Changed)04 Notification forIncoming CallList Existence0 = Off1 = OnDetermines whether or not an ex-tension display shows Check Listwhen an incoming call is missed bya user.COS 01 ~ 15 = 005 Signal/Voice Call 0 = Off1 = OnTurn off or on an extension ability toenable Handsfree Answerback orForced Intercom Ringing for their in-coming Intercom calls.COS 01 ~ 15 = 1 11-11-1511-11-1606 Incoming TimeDisplay0 = Off1 = OnCOS 01 ~ 15 = 007 Call Queuing 0 = Off (Calls are notqueued.)1 = On (Calls arequeued.)Turn off or on an extension ability tohave calls queued if a call rings theextension when it is busy.COS 01 ~ 15 = 1 20-13-0609 Deny Collect CallReceiving0 = Off1 = OnCOS 01 ~ 15 = 013 DND ActiveWhile Ringing(V3.0 Added)0 = Immediate1 = Next callWhen set to 0, and if set DND dur-ing an incoming call, the call for theterminal stops immediately.When set to 1, and if set DND dur-ing an incoming call, the call for theterminal continues ringing and setfor the next call.COS 01 ~ 15 = 0SL1100 ISSUE 4.02-180 Program 20 : System Option SetupProgram20
