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How to open VoLTE on telecom card?

VoLTE refers to high-definition calling mode. After this function is enabled, the 4G network of the mobile phone will not be reduced to 2G or 3G network during the call, which can ensure that the call is clearer. Do you know how to enable VoLTE on telecom cards? Next this guide will tell you the answer.

0 1 First, we edited the short message "ktVoLTE" to 1000 1, and then we received the short message sent back by telecom, which means that our telecom card has been opened.

Then we open the "Settings" on the phone and find the "Mobile Network" option.

Click to open "VoLTE HD Call" mode.

Finally, we need to enter the code "* # * # 86583 # * *" in the dial-up interface to successfully open VoLTE.