Day/Night Call Forwarding Class of Service

Busy and No Answer Call Forwarding can be set through system programming to provide different extensions for day and night forwarding on a per-telephone basis. The night answer button programmed at the operator console controls the change in call forwarding.  This means that during the day, your calls can forward to the operator or your secretary and at night they can forward to voice mail (option). 

Dictation Access

The system provides, through system programming, the ability for each telephone user to access dictating equipment you provide. 

Direct C.O. Appearance on Key Sets

The system provides, the ability to assign telephone lines as direct appearances on all telephone sets. This feature allows you the use of a specific line at any given time by pressing the associated line button.

Direct Inward Dialing (DID) (Option)

The system can interface with telephone company provided DID lines.  DID service allows you to have more telephone numbers than telephone lines.  

For example, you can have a separate published telephone number for each of 100 telephones but only have twenty telephone lines (inbound only).  Callers dialing your telephone number will be routed directly to your telephone without having to go through the operator or hear a recording and dial your extension.  Since there are never more than twenty people on inbound calls at once (depending upon your needs), callers never receive a busy.  This means you essentially have 100 private lines without the expense of having 100 telephone lines.

Direct Inward Lines

This feature allows direct termination of your private telephone line on your telephone.  When you are on the telephone or do not answer, the call can be forwarded to the operator or voice mail (optional).  This is useful in situations where only a few people need a private line.  Also see Direct Inward Dial (DID) service.

Direct Inward System Access (DISA)

This feature allows an outside caller the ability to dial directly into the system without the assistance of an operator or attendant.  When you dial the associated DISA number from outside the office, you are connected to intercom dial tone.  After you enter a security code, you can make telephone calls the same as you can when you are in the office. 

Direct Outward Dialing

Private lines may be programmed on the telephone instrument enabling the user to have direct access to an outbound line.

Direct T- I Interface (Option)

This is an optional digital trunk interface card that allows connection directly to a T-1 span without the need for a channel bank or special multiplexing equipment. 

Directed Incoming Trunk Pickup

You can answer a specific telephone line with an incoming call by dialing the system programmed pickup code and the line number.

Directed Outgoing Trunk Pickup

Any telephone in the system can pick up any idle telephone line to place an outgoing call by dialing a system-programmed code plus the line number.

Directory Number Information Service (DNIS) (Option)

DNIS is similar to Direct Inward Dial (DID) service but requires T-1 service from the telephone company and Direct T-1 interface circuit cards (Optional).

Distinctive Ringing

Incoming calls can have a distinctive ring interval to help identify and distinguish between types of calls.

Do-Not-Disturb

You can program a Do-Not-Disturb (DND) button that will block calls to your telephone. The telephone calling you will receive special interrupted tones or display information indicating that you are in the DND mode.

DSS/BLF

You can program your unused line buttons as a direct station selection (DSS) button with a busy lamp field (BLF) light for another user.  This means you will know when their telephone is in use.  When the light is not lit, you can call them on the intercom by pressing their DSS button.  They will hear a beep and can talk to you without ever having to touch their telephone.  If they have a Basic telephone, their ICM (intercom) button will ring instead.

Dual Color LEDs

Each line key on the digital key telephones is equipped with a Dual Color LED (light emitting diode), providing easy monitoring of line status.  For example, you can tell at a glance which line you are on by the color of the light.