Does the POCO X7 Pro support VoLTE HD voice calls?

The POCO X7 Pro supports VoLTE HD voice calls.
For your reference, here is more information about VoLTE HD voice calls:
1. VoLTE HD (Voice over LTE HD Voice Calls) is a voice call technology based on the LTE network, providing a higher quality voice call experience. VoLTE HD calls use high-definition voice coding technology to make calls clearer and more natural, and reduce background noise and call delays;
2. When using the LTE network, VoLTE can continue to transmit data, such as surfing the Internet, downloading, video streaming, etc., while making voice calls without switching networks;
3. VoLTE can reduce dial-up connection time and connect almost instantly after making a call, avoiding the long waiting time in traditional networks.
To enable this feature, please refer to the following steps:
1. You can go to [Settings];
2. Tap [Mobile networks];
3. Select the SIM card that you want to use for the VoLTE HD calls;
4. Tap [Preferred network type];
5. Select [Prefer 5G] or [Prefer LTE]. You can see a VoLTE icon on the upper right corner when you slide down from the upper right to open the control center, which indicates that your device has enabled the VoLTE feature.