Panasonic KX-TD500 System Reference Manual page 660

Conditions
If Auto Start Time on a certain day is not
assigned, the current mode is continued until a
new start time is encountered.
If the Start Time for Day mode and Night mode
on the same day are set identically, the current
mode is continued.
If Auto Start Time assignment is not programmed
at all, the current mode is continued. In other
words if the current mode is Day, Day Mode is
continued, and if the current mode is Night, Night
Mode is continued.
Operation
Changing Day mode to Night mode
1. Lift the handset.
2. Dial the feature number for
"Night Mode Set" (Default
• You hear confirmation tone 1 or
2.
3. Replace the handset.
Changing Night mode to Day mode
1. Lift the handset.
2. Dial the feature number for
"Night Mode Cancel" (Default :
#83).
• You hear confirmation tone 1 or
2.
3. Replace the handset.
Changing from Auto mode to Manual mode
Changing from Manual mode to Auto mode
:Y83).
5-G-4
1. Lift the handset.
2. Dial the feature number for "Night
Service Manual Mode Set"
(Default : Y84).
• You hear confirmation tone 1 or
2.
3. Replace the handset.
1. Lift the handset.
2. Dial the feature number for "Night
Service Manual Mode Cancel"
(Default : #84).
• You hear confirmation tone 1 or
2.
3. Replace the handset.