receiver (n)
/rɪˈsivər/
ống nghe điện thoại
the part of a telephone that you hold close to your mouth and ear
![receiver](https://7vel.com/assets/assets-v2/img/library/receiver.jpg)
fax (n)
/fæks/
máy fax
a machine that sends and receives documents in an electronic form along telephone wires and then prints them
![fax](https://7vel.com/assets/assets-v2/img/library/fax.jpg)
mobile phone (n)
/ˈmoʊ·bəl foʊn/
điện thoại di động
a telephone that does not have wires and works by radio, that you can carry with you and use anywhere
![mobile phone](https://7vel.com/assets/assets-v2/img/library/mobile phone.jpg)
public telephone (n)
/ˈpʌblɪk ˈtɛləˌfoʊn/
điện thoại công cộng
a telephone, usually in a public place, that is operated using coins or a card
![public telephone](https://7vel.com/assets/assets-v2/img/library/public telephone.jpg)
phone card (n)
/ˈfəʊn.kɑːd/
thẻ điện thoại
a small plastic piece that is used to pay for calls from a public phone
![phone card](https://7vel.com/assets/assets-v2/img/library/phone card.jpg)
code (n)
/koʊd/
mã
a system of words, letters, numbers, or symbols that represent a message or record information secretly or in a shorter form
![code](https://7vel.com/assets/assets-v2/img/library/code.jpg)
call back (phrasal verb)
/kɔːl bæk/
gọi lại
to phone someone again, or to phone someone who called you earlier
![call back](https://7vel.com/assets/assets-v2/img/library/call back.jpg)
message (n)
/ˈmɛsɪdʒ/
tin nhắn
a short piece of information that you give to a person when you cannot speak to them directly
![message](https://7vel.com/assets/assets-v2/img/library/message.jpg)
dial (v)
/ˈdaɪəl/
quay số
to operate a phone or make a phone call to someone by choosing particular series of numbers on the phone
![dial](https://7vel.com/assets/assets-v2/img/library/dial.jpg)
extension (n)
/ɪkˈstɛnʃn/
máy nhánh, máy phụ
an extra telephone line connected to a central telephone in a house or to a switchboard in a large building
![extension](https://7vel.com/assets/assets-v2/img/library/extension.jpg)
answer (v)
/ˈɑːn.sər/
trả lời
to say, write, or do something as a reaction to a question, letter, etc.
![answer](https://7vel.com/assets/assets-v2/img/library/answer.jpg)
![](themes/7vel/images/chan_ghichu.png)
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