one piece and split-type intercom system solutions for elevator intercom

restaurant coaster pager for taking meal or paging

services coaster pager for taking meal or paging

restaurant service button for table for ordering meal or call waiter

long range call pager for ordering meal or call waiter

intercom system for elevator to call help when get trapped in elevator

ticket office voice intercom

nurse call system push button for old people

nurse call light systems used in hospital