Ultra HD video calls
1. 4G Android phone settings
Take a Huawei mobile phone as an example, enter the [Settings] of the Huawei phone, then enter the [Mobile Network], find the [Mobile Data], and open the [VoLTE HD Call]

Second, 5G Android phone settings
For 5G mobile phones, take Huawei mobile phones as an example, enter the [Settings] of Huawei mobile phones, then enter [Mobile Network], find [Mobile Data], open [Enable 5G], and the mobile phone has ultra-clear video call function.
3. Dial ultra-high-definition video calls
1. Open the phone address book, tap the video call icon, and dial the video call directly.
2. You can also tap the mobile phone screen during the voice dialing or voice answering process, the screen button appears, and tap "Video Call"