switchboard

1.（电话的）交换机，交换台，总机the central part of a telephone system used by a company, etc., where telephone calls are answered and put through(= connected) to the appropriate person or department; the people who work this equipment

1.【电】配电盘;(电信,电话)交换机,交换台;配电盘

1.a large piece of equipment in an office, hotel, public building, etc. that a person called a switchboard operator uses to answer telephone calls and to connect the people calling with the people who they want to speak to

2.the electronic equipment used to connect telephone calls in a large business or organization