Apple Telecom's Method of Opening volte

This tutorial takes iphoneXR mobile phone as an example to demonstrate:

1

Update the mobile phone IOS system to 12.2:, as shown in the following figure:

How to turn on Telecom volte on iphone

2

After the mobile phone system is updated, start to update the operator file: Settings-General-About this mobile phone-automatically jump out to update the operator prompt-Update-Click again:

How to turn on Telecom volte on iphone

How to turn on Telecom volte on iphone

three

Both telecom cards have been activated, and the Volte function of both cards has been activated through SMS, manual customer service and handheld business hall:

How to turn on Telecom volte on iphone

end

Set the primary and secondary cards in the same way:

Steps: Settings-Cellular Mobile Network-Cellular Mobile Data Options-Enable 4G- Voice and Data. The following figure shows the setting process of the main card:

How to turn on Telecom volte on iphone

Set voice and data:

How to turn on Telecom volte on iphone

Set successfully:

How to turn on Telecom volte on iphone

four

After testing, the two telecom cards of this XR mobile phone can answer calls, and the video function is temporarily unavailable!