How to activate VoLTE on China Unicom
With the popularization of 5G networks, VoLTE (Voice over LTE) has become the focus of users' attention. VoLTE technology can provide clearer call quality and faster connection speeds. How do China Unicom users activate the VoLTE function? This article will introduce the activation steps, precautions and FAQs in detail.
1. What is VoLTE?
VoLTE is a high-definition voice call technology based on 4G LTE network. Compared with traditional 2G/3G calls, it has the following advantages:
| Comparative item | VoLTE | traditional call |
|---|---|---|
| Connection speed | 1-2 seconds | 5-10 seconds |
| sound quality | HD | Ordinary |
| Network usage | Can access the Internet at the same time | Disconnected during call |
2. Conditions for activating VoLTE
Before activating, please confirm that your device meets the following conditions:
| Project | request |
|---|---|
| Mobile phone model | Models that support China Unicom VoLTE (such as iPhone 6 and above, Huawei P30 series, etc.) |
| System version | iOS 12.1+/Android 8.0+ |
| SIM card | China Unicom 4G USIM card |
| Package | 4G basic service has been activated |
3. Opening methods (3 ways)
Method 1: Activation via SMS
| steps | Operating Instructions |
| 1 | Send SMSDGVOLTEto 10010 |
| 2 | Reply after receiving the confirmation messageY |
| 3 | Restart the phone to take effect |
Method 2: Turn on mobile phone settings
| Model | Operation path |
| iPhone | Settings→Cellular Network→Voice & Data→Enable 4G→Select "Voice & Data" |
| Huawei | Settings→Wireless and networks→Mobile networks→VoLTE HD calling |
Method 3: Apply at China Unicom Business Hall
Bring your original ID card to the China Unicom business hall and inform the staff that you need to activate the VoLTE function.
4. Answers to hot questions
| question | solution |
|---|---|
| Unable to use after activation | ① Check the mobile phone settings ② Confirm the local network coverage ③ Dial 10010 for consultation |
| Whether to charge | No function fee, calls are charged according to package standards |
| International roaming support | Available in some countries/regions, please consult in advance |
5. Latest policy (updated in 2023)
According to China Unicom’s latest announcement:
| From December 1st | New users who join the network will activate VoLTE by default. |
| 2024 plan | Gradually shut down 2G networks and fully shift to VoLTE |
6. Use tips
1. Pay attention to the HD logo in the upper right corner during a call
2. Scenes such as subways/elevators may automatically fall back to 3G
3. Video calls require that the other party also activates VoLTE.
Through the above steps, you can enjoy the high-quality calling experience brought by China Unicom VoLTE. If you encounter any problems, it is recommended to give priority to online customer service consultation through the China Unicom APP to obtain real-time help.
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