D channel (Data channel)

D channel (Data channel):  An ISDN  standard transmission channel which  is packet-switched, and is  used for call setup, signalling  and data transmission. Data channel:  See  D  channel. Data Communications  Interface (DCI):  A Norstar device  that  allows  you to attach an RS-232  data  device to the Norstar system. data terminal:  A device, such as a modem, that can be used to  transfer data instead of sound  over a telephone network. You cannot use Norstar programming to set up such devices. See the  documentation that accompanies  the  device. date:  See Show  Time or  Time and Date. defaults:  The  settings for  all  Norstar features when the  system  is  first installed.  Settings  are changed from their defaults in programming. In  this manual,  default settings are  shown in bold  text. Delayed  Ring Transfer (DRT) to prime:  After a specified number of rings,  this  feature  transfers  an unanswered call  on an external line, to the  prime telephone associated with that line.  This feature  is  activated  under Feature settings  in  Sys prgrmmng. destination code:  A two- to  12-digit number that  the system interprets and then  translates  into the digits that  you want dialed  out.  Both  the code  and its associated  dialed digits  are  assigned under  Routing  service in Services programming. DID trunk:  See Direct  Inward Dial trunks. DID Trunk  Cartridge:  The Trunk Cartridge that allows you to connect DID trunks to the  Norstar  system. dialing restriction:  See Restriction filter. dialing modes:  ≤•°¤ This feature  allows you  to set the  dialing mode  of your telephone.  Norstar supports three dialing  modes: Automatic Dial,  Pre-Dial, and Standard Dial. All  three  modes support on-hook dialing, meaning you  can dial a call without picking up the  receiver. The special features  of  the  Automatic  and Pre-Dial  modes are available  only when you dial on-hook. Digital Mobility phones  74XX: These telephones connect  to the system through station modules  connected to a Nortel Networks  Digital  Mobility controller. Digital  Trunk  Interface:  The Trunk Cartridge connects  digital T1 AND ISDN trunks to the  Norstar system. Direct-dial:  A  feature that  allows  you to dial a designated telephone in your Norstar system  with  a  single  digit,  such as  the main  receptionist. As many  as five  direct dial sets  can be established. Each  telephone in  the  system is assigned to one  direct-dial  telephone. There is a single,  system  wide  digit for calling  the assigned direct-dial  telephone of  any telephone.  Direct-dial telephones are established in System programming. Telephones are  assigned  to a direct-dial telephone under  Capabilities  in Terminals&Sets  programming. Direct-dial #:  A digit used  system- wide to call  the  Direct-dial  telephone. The digit is  assigned  under  Access codes  in  Sys  prgrmmng. Direct-dial number:  The digit  used to call  the direct-dial telephone.

D channel (Data channel)

D channel (Data channel): An ISDN standard transmission channel which is packet-switched, and is used for call setup, signalling and data transmission.
Data channel: See D channel.
Data Communications Interface (DCI): A Norstar device that allows you to attach an RS-232 data device to the Norstar system.
data terminal: A device, such as a modem, that can be used to transfer data instead of sound over a telephone network. You cannot use Norstar programming to set up such devices. See the documentation that accompanies the device.
date: See Show Time or Time and Date.
defaults: The settings for all Norstar features when the system is first installed. Settings are changed from their defaults in programming. In this manual, default settings are shown in bold text.
Delayed Ring Transfer (DRT) to prime: After a specified number of rings, this feature transfers an unanswered call on an external line, to the prime telephone associated with that line. This feature is activated under Feature settings in Sys prgrmmng.
destination code: A two- to 12-digit number that the system interprets and then translates into the digits that you want dialed out. Both the code and its associated dialed digits are assigned under Routing service in Services programming.
DID trunk: See Direct Inward Dial trunks.
DID Trunk Cartridge: The Trunk Cartridge that allows you to connect DID trunks to the Norstar system.
dialing restriction: See Restriction filter.
dialing modes: ≤•°¤
This feature allows you to set the dialing mode of your telephone. Norstar supports three dialing modes: Automatic Dial, Pre-Dial, and Standard Dial. All three modes support on-hook dialing, meaning you can dial a call without picking up the receiver. The special features of the Automatic and Pre-Dial modes are available only when you dial on-hook.
Digital Mobility phones 74XX: These telephones connect to the system through station modules connected to a Nortel Networks Digital Mobility controller.
Digital Trunk Interface: The Trunk Cartridge connects digital T1 AND ISDN trunks to the Norstar system.
Direct-dial: A feature that allows you to dial a designated telephone in your Norstar system with a single digit, such as the main receptionist. As many as five direct dial sets can be established. Each telephone in the system is assigned to one direct-dial telephone. There is a single, system wide digit for calling the assigned direct-dial telephone of any telephone. Direct-dial telephones are established in System programming. Telephones are assigned to a direct-dial telephone under Capabilities in Terminals&Sets programming.
Direct-dial #: A digit used system- wide to call the Direct-dial telephone. The digit is assigned under Access codes in Sys prgrmmng.
Direct-dial number: The digit used to call the direct-dial telephone.