Panasonic KX-TD500 System Reference Manual page 635

Operation
Setting Call Forwarding-No Answer
1. Lift the handset.
2. Dial the feature number for "Call
Forwarding-No Answer Set"
(Default : **4).
3. Dial the directory number of the
extension or the Voice Mail port,
or the "FDN for General Operator
Call" of the destination.
• You hear confirmation tone 1 or
2 and then dial tone 1, 3, or 4.
4. Replace the handset.
Canceling Call Forwarding-No Answer
1. Lift the handset.
2. Dial the feature number for "Call
Forwarding/Do Not Disturb
Cancel" (Default : ##0).
• You hear confirmation tone 1 or
2 and then dial tone 1, 3, or 4.
3. Replace the handset.
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