switchboarding
DIP switch
Strowger switch
trunk
switchology
rotary switch
button
rocker
push button
push
spelk
disconnect
knob
toggle switch
switchlike
on/off switch
patchboard
toggle
on-off switch
three-point switch
dual inline package switch
three-way switch
switch-hit
callboard
big switch
photoswitch
light switch
telephone operator
switchport
board
pressure switch
skateboard truck
keyswitch
interlocking tower
baroswitch
solenoid
signboarding
knife switch
rond-de-cuir
multiplexer
intermediate switch
switchplate
sneaky Pete
traveller
split switch
hinge
footswitch
lever
four-way switch
chopper