How to make the video of mobile phone call?

To establish a video call, you need to download cool open Call app, set permissions, and open permissions such as "floating window", "self-startup", "lock screen display" and "background pop-up interface". Details are as follows:

1. Download and open the Cool Call app, and set the corresponding permissions according to the prompts.

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2. Open the "floating window" option, and then select "Allow system settings to be modified".

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3. Open permissions, and open "self-startup", "lock screen display" and "background pop-up interface".

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4. Log in to your account, select your favorite topic, and then click "Set as Call" below.

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Precautions:

1. If you are not satisfied with the video material, you can also shoot and upload the video material yourself.

2. A floating window is characterized by a window that can be displayed on top of all other applications. For example, if you make a WeChat video call and exit WeChat to the background, if you open the permission of WeChat floating window, the video interface of WeChat will be displayed in the form of floating window.

If you don't have permission to open the floating window, you can't see the interface of video call. This will make it easier for you to handle multiple tasks at the same time. However, different applications may have different forms of floating function according to their own settings and usage scenarios.