Panasonic KX-TD500 System Reference Manual page 629

Operation
Setting Call Forwarding-All Calls
1. Lift the handset.
2. Dial the feature number for "Call
Forwarding-All Call Set" (Default :
**2).
3. Dial the directory number of the
extension or the Voice Mail port,
or the "FDN for General Operator
Call" to be set as the destination:
• You hear confirmation tone 1 or
2 and then dial tone 1, 3, or 4.
4. Replace the handset.
Canceling Call Forwarding-All Calls
1. Lift the handset.
2. Dial the feature number for "Call
Forwarding/Do Not Disturb
Cancel" (Default : ##0).
• You hear confirmation tone 1 or
3. Replace the handset.
5-D-11
2 and then dial tone 1, 3, or 4.