Locking The Keypads - Panasonic KX-TD816JT User Manual

5.3 Operation

5.3.8 Locking the Keypads

Incoming calls can be answered, but outgoing calls cannot be dialled.
To lock / unlock
PS
While on-hook
<When locked>
KEYPAD LOCKED
PRESS F FOR 2SEC
Press FUNCTION
for 2 seconds.
196
DECT Portable Station