Table of Contents1 Features and Configurations—A ..........................................................131.1 A ........................................................................................................................................141.1.1 Absent Message .............................................................................................................141.1.2 Account Code Entry .......................................................................................................151.1.3 ARS (Automatic Route Selection) ..................................................................................161.1.4 Automatic Callback Busy (Camp-on) .............................................................................221.1.5 Automatic Extension Release ........................................................................................231.1.6 Automatic Time Adjustment ...........................................................................................232 Features and Configurations—B ..........................................................252.1 B ........................................................................................................................................262.1.1 BGM (Background Music) ..............................................................................................263 Features and Configurations—C ..........................................................293.1 C ........................................................................................................................................303.1.1 CA (Communication Assistant) ......................................................................................303.1.2 Call Distribution Port Group ............................................................................................303.1.3 Caller ID .........................................................................................................................323.1.4 Call Hold .........................................................................................................................363.1.5 Call Log, Incoming ..........................................................................................................383.1.6 Call Monitor ....................................................................................................................413.1.7 Call Park .........................................................................................................................423.1.8 Call Pickup .....................................................................................................................433.1.9 Call Splitting ...................................................................................................................443.1.10 Call Transfer ...................................................................................................................453.1.11 CALL WAITING FEATURES ..........................................................................................483.1.12 Call Waiting Tone ...........................................................................................................503.1.13 CELLULAR PHONE FEATURES ...................................................................................513.1.14 CLI (Calling Line Identification) Distribution ...................................................................513.1.15 CLIP (Calling Line Identification Presentation) ...............................................................533.1.16 CO Line Access ..............................................................................................................553.1.17 CO Line Call Limitation ...................................................................................................573.1.18 Conference .....................................................................................................................583.1.19 Confirmation Tone ..........................................................................................................593.1.20 Consultation Hold ...........................................................................................................603.1.21 COS (Class of Service) ..................................................................................................613.1.22 CPC (Calling Party Control) Signal Detection ................................................................623.1.23 CTI (Computer Telephony Integration) ...........................................................................624 Features and Configurations—D ..........................................................654.1 D ........................................................................................................................................664.1.1 Data Line Security ..........................................................................................................664.1.2 DHCP (Dynamic Host Configuration Protocol) Assignment ...........................................664.1.3 Dial Mode Selection .......................................................................................................674.1.4 Dial Tone ........................................................................................................................674.1.5 Dial Tone Transfer ..........................................................................................................694.1.6 DID (Direct Inward Dialing) .............................................................................................704.1.7 DIL (Direct In Line) .........................................................................................................724.1.8 DISA (Direct Inward System Access) .............................................................................744.1.9 Display Information .........................................................................................................844.1.10 DND (Do Not Disturb) .....................................................................................................854.1.11 Door Open ......................................................................................................................86Document Version 2009-12 Feature Manual 7Table of Contents