1.3 Call Forwarding (FWD)/Do Not Disturb (DND) Features
Extension of Another PBX (via TIE Line,
Access without PBX Code)
*
If an extension user cannot call certain extensions on a COS basis (→ 1.1.2.2 Internal Call Block), the
extension user cannot forward his or her calls to those extensions either.
Conditions
[General]
•
FWD for CO Line Calls/Intercom Calls
The FWD feature can be set for CO line calls, for intercom calls, or for both of them by the extension
user.
•
FWD from ICD Group (Group FWD)
COS programming determines the ICD groups that can use this feature.
•
FWD to CO Line
COS programming determines the extensions or ICD groups that can forward calls to an outside party
(→ Call Forwarding to CO Line [504]).
The original extension's Toll Restriction (TRS) and Automatic Route Selection (ARS) still apply to the
forwarded call. (→ 1.8.1 Toll Restriction (TRS), → 1.9.1 Automatic Route Selection (ARS))
•
CO Line Call Duration
If a call between an extension user and an outside party, or between two outside parties is established,
the call duration can be restricted by a system timer (→ Extension-to-CO Line Call Duration [472], →
CO-to-CO Line Call Duration [473]). If the timer expires, the line will be disconnected. (→ 1.10.8 CO
Line Call Limitation)
•
Multiple FWD
Calls can be forwarded up to four times. The following forwarding features are counted as Multiple
FWD:
–
FWD—Busy or Busy/No Answer (in case a destination extension is busy), or All Calls
–
Idle Extension Hunting—Overflow
–
Intercept Routing—Busy/DND (in case a destination extension is busy or in DND mode)
–
ICD Group Overflow
Incoming
call
Original
destination
In the above illustration, forwarding stops at extension E. However, forwarding can go farther in the
following cases:
–
If a destination extension rings, and then the call is redirected to the forward destination by the
FWD—No Answer or Busy/No Answer feature.
–
If a destination extension rings, and then the call is redirected to the intercept destination by the
Intercept Routing—No Answer feature.
–
If a call waits in a queue of an ICD group, and then the call is redirected to the overflow destination
by the Queuing Time Table. (→ 1.2.2.3 Queuing Feature)
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Feature Guide
Destination
1
2
A
B
Condition for Original Extension/ICD
Availability
–
3
4
C
D
Group
5
E
F