How does Unicom open volte HD calls?

1. Confirm that the phone supports VoLTE function, and turn it on in the phone settings: Make sure that the phone model supports VoLTE function, find VoLTE or HDVoice option in the phone settings, and turn it on.

2. Log in to China Unicom official website and enter the personal account page: visit China Unicom official website and log in to your personal account.

3. Find and click the "Enable Service" option and select "VoLTE HD Call": On the personal account page, find and click the "Enable Service" option and select "VoLTE HD Call" from the list.

4. Fill in relevant information for identity verification: according to the system prompt, fill in necessary information, such as mobile phone number, ID number, etc., and perform corresponding identity verification.

5. Settings after opening: After opening successfully, make corresponding settings on the mobile phone. Find "Wireless and Internet" or similar options in the phone settings, and turn on the "VoLTE HD Call" switch.