outside line/call etcTCTa telephone line or telephone call which is to or from someone who is not inside a particular building or organization 外线/外线电话等 Dial ‘9’ before the number when making outside calls. 拨打外线请在号码前加拨“9”。
outside line/call etc• Caroline Amphlett had left and it was switched through to an outside line.• Each telephone instrument had its own dial and from it can be dialled other extensions as well as outside calls.• She concentrated on the outside call.• There's a private telephone in the compartment in front of you if you need to make any outside calls.• A few telephones had direct outside lines when the switchboard closed down at night.
→ outside line/call etc at outside2(4)