Panasonic KX-T336 System Reference Manual page 517

The following table shows the results of the calls arriving at an extension setting
this function depending on the conditions of the preset destination.
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.I .
Type of Call Arriving
Condition of Destination
Forwarding
8 Setting Extension
Execution
Result
Extension call idle status
0
Call is forwarded to destination.
Busy status
0
Busy tone is sent from destination.
Assigned to DND
0
DND tone is sent from destination.
PITS programming mode
0
Busy tone is sent from destination.
Conditions except In Service * X
Call is placed on setting extension.
IL (1 :l) or DISA call Idle status
0
Call is forwarded to destination.
Busy status
0
Call is forwarded and kept waiting
at destination.
Assigned to DND
0
Same as call reaching DND. See
Section 5-B-4.00 "Do Not Disturb
(DND)."
PITS programming mode
0
Call is forwarded and kept waiting
at destination.
IID call
Conditions except In Service *
Idle status
Busy status
Assigned to DND
PITS programming mode
Conditions except ln Service *
X Call is placed on setting extension.
0
Call is forwarded to d&nation.
0
Busy tone is sent from destination
0
Same as call reaching DND. See
Section 5-B-4.00 "Do Not Disturb
(DND)."
.,
0
Busy tone is sent from destination
X
Call is placed on destination.
0:
Forwarding possible
X : Forwarding impossible
ic
Conditions are "Out of Service,"
"Fault" and "Pre-Installed." See
Section 14-C-2.02 "Port" for details
5-D-5