Kübler SMCB Instructions D'utilisation page 67

Touch Tones:
This value is used to set keypad tones active / inactive.
0 keypad tones
1 keypad tones
*) Display Unit changes like „Screen Light" or „Screen
Saver" are
effective immediately, but will go lost without saving (see
chapter 0)!
Doc. # R60718
SMCB-Display Parameter List
OFF
ON
0 1 1
EN - 24