When to use telephone in Korean
Korean: 전화기[ jeon-hwa-gi ]

When to use it
A telephone (전화기) is a device for calling and talking to people. It often means a home or desk phone, but it can also mean the phone itself in general. You can use this word when you talk about answering, using, or buying a phone.
Example sentences
집 전화기가 울려요.
The home telephone is ringing.
아빠가 전화기를 들었어요.
Dad picked up the telephone.
학교 사무실 전화기를 잠깐 썼어요.
I used the school office telephone for a moment.
이 가게는 전화기를 팔아요.
This store sells telephones.
여행 중에 호텔 전화기를 썼어요.
I used the hotel telephone during the trip.
민수는 전화기를 귀에 대고 말해요.
Min-su holds the telephone to his ear and talks.