display call switch

Local Call Switch

coupled (linked)switch,deck switch,gang switch

coin call(pay-phone call)

Air Switch，Air-break Switch

switch on and switch off

switch point；point tongue；switch rail；tongue rail；blade

whippletree switch whiffletree switch

120First-aid call center

a call of nature

a call to arms

a close call

a duty call

a house of call

abandoned call

abbreviated address call

abbreviated call

abbreviated call letters

abnormal function call