Chapter 4. Key Telephone Features Section 700 - Operation
4-46 DBS Manual - Revised April 2000 DBS-2.3/9.2-700
Related Programming
• FF1 (System): Extension Class of Service Setting (CPC-AII and CPC-B
Version 4.0 or higher)
• FF3 (Extension): Extension Class of Service Assignment (CPC-AII and
CPC-B Version 4.0 or higher)
Considerations
• Callback Queuing will ring an extension in DND.
• A Private Line will ring an extension in DND.
• In CPC-A and CPC-B Versions prior to 5.0, DND and Absence Messages
cancel Call Forwarding.
Beginning with Version 5.0, calls to an extension with DND or Absence
Message turned on are treated differently, depending on whether they are
trunk or intercom calls. Intercom calls receive busy tone; trunk calls are
routed to the extension defined in permanent call forwarding.
The following types of incoming trunk calls will follow permanent call
forward settings:
- Direct trunk calls (including DID/DNIS)
- Transferred trunk calls.
• With CPC-A and CPC-B Version 1, DND is not available for Attendant
Phones. Beginning with CPC-B Version 2.0, Attendant Phones can
activate DND.
• The Attendant can activate or cancel this feature on a n extension using FF
key LEDs on a DSS console.
• The DND feature ca nnot be activated from an extension selected to receive
call forwarding.