Illustration of free online phone use for Xiaomi mobile phones

1. The Xiaomi mobile phone number must be upgraded to the MIUI6 system. Then, click "set" on the MIUI6 system desktop.

2. Find the "phone" option under the Settings panel and enter the phone settings option.

3. In the phone list, find the "free network call" setting and click it to go to the setting project.

4. Then we "start the network phone number"

5. When we enable the free online call function, we can prevent spam calls or harassing calls. We can set it to "only answer the free online call from contacts.

Note: The network phone number is free, but the network phone number needs to be connected. That is to say, Wi-Fi, 4G, and 3G traffic are required, if I use mobile traffic, I think it is cheaper to make a phone call. If I use wifi, it is worth it.