Cancel Unicom HD service

If your mobile phone supports and has enabled the VoLTE service, you can turn on the VoLTE switch by the following methods, and the "HD" sign will appear in the notification bar of your mobile phone, so that you can use the VoLTE service normally:

1. Huawei: Settings-Wireless and Network-Mobile Network -VoLTE Call;

2. Xiaomi: Settings-Dual Card and Mobile Network-Click on SIM card information (Unicom)-Enable VoLTE HD calling;

3.OPPO: Settings-Dual Card and Mobile Network-Click on SIM Card Information and Settings (Unicom) -VoLTE HD Call;

4.VIVO: settings-dual card and mobile network-click on SIM card information and settings (Unicom) -VoLTE HD call;

5. Samsung: Settings-Connection-Mobile Network -VoLTE HD Call SIM1;

6. Meizu: Settings-Operator Network-Click on SIM card management (Unicom) -VoLTE HD calling;

7. Hisense: Settings-Network and Internet-Mobile Network-Advanced-Enhanced 4G LTE. If you have any questions, please click /qA5yV for consultation.