Where is Unicom's VOLTE service opened?

1, dial 100 10 to transfer to the manual desk for consultation;

2. Add Unicom official WeChat official account and then enter the manual service;

3. Send a text message to Unicom 100 10 number? VBNCDGFBDE is already open.

Unicom's VOLTE service was officially put into commercial trial in some cities in China from April 1 9, and was opened nationwide from June 1 9.

At present, China Unicom gives priority to commercial trials of VoLTE high-definition telephone service in Beijing, Tianjin, Shanghai, Zhengzhou, Wuhan, Changsha, Guangzhou, Jinan, Hangzhou, Nanjing, Chongqing *** 1 1 cities, and does not support the use of VoLTE high-definition telephone service in these cities.

Extended data:

——VoLTE(Voice Over LTE), the high-definition voice call service of Unicom, refers to the voice and video phone service connected through 4G high-speed network. VoLTE service adopts IMS(IP Multimedia Subsystem) technology and is realized based on LTE network, which can support various forms such as high-definition voice, high-definition video and multimedia message.

The main advantages of VoLTE call are:

1, dialing is faster. In the traditional 2/3G era, it takes 7 seconds for a mobile phone to dial (the other party starts ringing), while it only takes 1 second after VoLTE is enabled;

2. The sound quality is better. In the traditional 2/3G era, the other party's voice is far away and often loses its voice. When VoLTE is enabled, the other party's voice is as clear and true as standing opposite him;

You can surf the Internet at the same time. In the era of traditional 2/3G/4G mobile phones, you need to switch the network to voice function, and the mobile phone will be disconnected.

After VoLTE is enabled, the 4G signal (obvious logo) on the top of the phone is still there during the call, so you can switch between various apps to view information or WeChat to continue receiving push information at any time.

During the trial commercial period, VoLTE service will be charged on time and for a long time, which is consistent with the existing voice service charging standard, and the traffic generated by VoLTE service is free of charge. 4G users who support China Unicom's VoLTE terminal can use this function. When this function is turned on, the "VoLTE" or "HD" icon will be displayed on the phone.

China Unicom official website

Baidu encyclopedia -—VOLTE