FEATURES GUIDE

General Features
48 Features Guide
Call Forwarding — by ISDN Line (CFU/CFB/CFNR)
Description
The call forwarding service provided by ISDN can be assigned on an extension basis. The
following features are available.
Call Forwarding — Unconditional (CFU)
All incoming calls to an extension are transferred by an ISDN line.
Call Forwarding — Busy (CFB)
An incoming call to an extension is transferred by an ISDN line when the extension is busy.
Call Forwarding — No Reply (CFNR)
An incoming call to an extension is transferred by an ISDN line when the extension does not
answer within a pre-assigned time.
Conditions
• Class of Service programming determines the extensions that are able to perform this
function.
Programming Guide References
• [005] Flexible CO Button/PF Key Assignment
• [100] Flexible Numbering
• [518] CFU/CFB/CFNR Assignment
Features Guide References
None
User Manual References
• 2.5.2 Forwarding Your Calls (Call Forwarding)
• 4.1.3 Customising the Buttons