Free Internet phone use has a high trick. Let's learn it.

In most of us, the Internet is a computer, the phone is a mobile phone, and few people will call and connect the network. This small series is specially designed for everyone to use the network to make free calls on the computer. First of all, you must download a software, the name of the software is "have a letter", you can Baidu search download! After registration, everyone can download it! (As shown below) After you download, log in! Let's take a look. After logging in, we can make a free call. There is still a way to earn money. There is not much to introduce here, you can log in and practice!