共电式电话交换机
common battery telephone exchange
common battery private branch exchange
联合海外交换台
joint overseas switchboard
人工国际交换台
manual international exchange
Exchange
manual international
无绳交换台
cordless (telephone) switch-board
直拨电话交换台
direct telephone exchange
洲际经转交换台
intercontinental transit exchange
专用交换台
private branch switchboard
专用自动小交换台
private automatic branch exchange
用户交换台
ARIS
art chafing dish
private branch switchboard