telephone exchange

noun 0.656

distribution board

noun 0.651

telephone operator

noun 0.639

panelboard

noun 0.605

soundboard

noun 0.595

switcher

noun 0.584

switchman

noun 0.572

board

noun 0.569

telephonist

noun 0.568

telephone box

noun 0.567

telephone booth

noun 0.557

phone booth

noun 0.555

switchgear

noun 0.555

phone box

noun 0.555

light switch

noun 0.553

mainboard

noun 0.552

telephone directory

noun 0.551

bulletin board

noun 0.550

telephone

noun 0.550

message board

noun 0.546

telephone girl

noun 0.546

interphone

noun 0.544

control panel

noun 0.543

video board

noun 0.542

control room

noun 0.541

sideboard

noun 0.541

landline

noun 0.539

hotline

noun 0.538

telephone book

noun 0.537

running board

noun 0.536

logic board

noun 0.534

circuit board

noun 0.532

busbar

noun 0.531

phonebook

noun 0.531

booking office

noun 0.531

service box

noun 0.531

switching function

noun 0.530

local board

noun 0.528

on-off switch

noun 0.527

switchover

noun 0.525

speakerphone

noun 0.525

signal bridge

noun 0.521

signboard

noun 0.521

drawing board

noun 0.519

phoneline

noun 0.518

back board

noun 0.518

desk

noun 0.516

booth

noun 0.515

toggle switch

noun 0.515

patch panel

noun 0.514

answering service

noun 0.512

intercom

noun 0.512

backplane

noun 0.512

school board

noun 0.510

rotary dial

noun 0.506

call box

noun 0.506

substation

noun 0.505

telephone call

noun 0.505

entryphone

noun 0.505

boardroom

noun 0.503

bulletin board system

noun 0.501