Talk about phoning

A: Did you get through to the complaints department?
B: Well, when I rang the first time, I got cut off, so I called again. Then someone kept me hanging on for ages, and in the end I hung up.

A: Could I speak to Mr. Howey, please?
B: Hold the line, please, while I put you through ... I'm sorry, he can't take your call at the moment. If you leave your number, he'll get back to you later.

A: Have you charged up your mobile?
B: Yes, but I've still got to top it up before I ring Howard. My phone calls are costing a fortune.

get through

to succeed in speaking to someone on the telephone

I tried phoning her office, but I couldn’t get through.

get cut off

to suddenly not be able to hear someone that you were speaking to on the telephone
（电话通话）中断

We were cut off in the middle of our conversation.
我们电话打到一半就断线了。

hang on = hold the line

used on the telephone to ask somebody who is calling to wait until they can talk to the person they want
别挂电话，等一下

Hang on—I'll just see if he's here.
等一下，我这就看看他在不在。

hang up (on somebody)

to finish a telephone conversation
挂断电话

If you hang up on somebody, you end a phone conversation suddenly without saying goodbye.

When we talk on the phone, she may hang up on me.

put somebody through

to connect someone to someone else on the telephone

Could you put me through to Eddie?
请帮我接通埃迪好吗？

get back to somebody

to talk to someone or telephone them later in order to answer a question or give them information
phone or speak to somebody later, especially to give a reply

I’ll find out the prices and get back to you.
我查一下价格再给你答复。

charge up something / charge something up

if you charge up a piece of electrical equipment, you put electricity into it
为...充电

How long will it take for the batteries to charge up?

top something up

to increase the level of something slightly so as to bring it back to the level you want

top up your mobile: pay more money so that you can make more calls

I need to top up my mobile phone (= pay more money so you can make more calls).
我需要给手机充够值。

cost a fortune

be very expensive

This trip cost a fortune.
这次旅行花费了一大笔钱。