Panasonic KX-TD500 System Reference Manual page 1366

Operation
4. Press the MEMORY button
to store the entry.
Exiting from the programming
mode:
5. Press the PROGRAM
button or change the
handset from off-hook to
on-hook.
Result
• The MEMORY button indicator
lights red.
• A confirmation tone sounds.
• "Initial display for PITS station
programming mode" is shown.
• The PITS station programming
mode is enabled and you
return to the operation mode.
13-C-54
Comment/Note