Panasonic KX-TD500 System Reference Manual page 293

4. Call Forwarding and Station Hunting
4-1.
Caller
VPS 1
FWD to a non-VPS extension
(All members of a hunting group are non-VPS extensions)
Transfer
Ext.1
FWD mode
(FWD-All/Busy)
Code Call State
Ringback Tone
C 3
Busy Tone
B 1
(FWD-No Answer)
Code Call State
Ringback Tone
A 1
(The call is arriving at Ext.1)
↓
Call Forwarding No Answer Time
has been elapsed.
↓
Ringback Tone
C 3
(The call is forwarded to an idle
extension of a hunting group
and arriving on it.)
Ringback Tone
A 1
(The call is arriving at Ext.1)
↓
Call Forwarding No Answer Time
has been elapsed.
↓
The call is still arriving at Ext.1.
3-F-33
Hunting
Forward
Ext.2 Hunting Group
Hunting
Conditions
At least one extension of a hunting
group is idle.
All members of a hunting group are
busy.
At least one extension
of a hunting group is
idle.
All extensions of a
hunting group are busy.
Ext.5
Hunting
Ext.4
Hunting
Ext.3
Conditions