Panasonic KX-T336 System Reference Manual page 124

(Example) The following flow chart shows the operation sequence for System
Starting Up with default values using
Panasonic KX-D4930 in VT mode.
Power ON reset or Press
the
RESET button
Confirm the
Initial screen
A
\/
MODE=0
SYSTEM=2
Press the RESET button
. .
MODE : Operation Switch
SYSTEM : System Administration Device
Selection Switch
l
To start up the system using Panasonic KX-D4930 in Dumb
mode, set
SYSTEM switch to "3" in above sequence.
2-F-7