I have asked how to setup WiFi-calls on my Xiaomi Mi 9T Pro - but the instruction is not correct as the menu where to set the ON is not available?

 

BR/Viggo

Answers

19 Answers


Hello Bolcheviggo!

Do you have assurance that WiFi calling is supported by your mobile carrier?

Greetings.


Android 10 (MIUI 12.0)
Step 1:  Open the  Settings
Step 2:  Tap on  SIM cards & mobile networks
Step 3:  Choose a  SIM card
Step 4:  Enable or disable  Make calls using Wi-Fi
  1. Open the Settings
  2. Tap on SIM cards & mobile networks
  3. Choose a SIM card
  4. Enable or disable Make calls using Wi-Fi

B

In short - YES! I'm recommended to set up WiFi calling. My provider is Oister (supcomp. of "3")

Hello Bolcheviggo!

Have you tried entering the code *#*#869434#*#* in the dial pad to activate the function?

Greetings.

B

THX - I've tried - it tells me VoWi-Fi is enabled - but how do I know it works?

BR

Bolcheviggo

Now please go back to the settings and check if the option is available, if not you have to scroll.


Android 10 (MIUI 12.0)
Step 1:  Open the  Settings
Step 2:  Tap on  SIM cards & mobile networks
Step 3:  Choose a  SIM card
Step 4:  Enable or disable  Make calls using Wi-Fi
  1. Open the Settings
  2. Tap on SIM cards & mobile networks
  3. Choose a SIM card
  4. Enable or disable Make calls using Wi-Fi

B

Unfortunately this option is not available. And it's not calling that is enabled it's just cheking...

BR

Hello Bolcheviggo!

I can't think of any other idea besides resetting the network settings for now, if it's definitely not the provider.


Android 10 (MIUI 12.0)
Step 1:  Open the  Settings
Step 2:  Tap on  Connection & sharing
Step 3:  Tap on  Reset Wi-Fi, mobile networks, and Bluetooth
Step 4:  Tap on  Reset settings
Step 5:  Enter the current  pattern,   PIN  or  password  and follow the instructions on screen
  1. Open the Settings
  2. Tap on Connection & sharing
  3. Tap on Reset Wi-Fi, mobile networks, and Bluetooth
  4. Tap on Reset settings
  5. Enter the current pattern, PIN or password and follow the instructions on screen

B

It's done and do not change a thing... :-( 

BR

You could check if everything is active by using the code *#*#4636#*#*.

B

Not sure what to look for? What is everything? Calling setup is LTE and WiFi is active... 

There should be an option for Wifi Calls, if available, which is either enabled or disabled.

B

There still a way to Wi-Fi calls and apparently not possible to anable the function... 

Attached pictures:

Hello Bolcheviggo!

In this case I would really contact the mobile operator again and describe the problem.

What you could try is to change the SIM-card slots: SIM 1 > Slot 2,...

Greetings!

B

I have tried to switch the two cards with no effect - but will get a new card from the provider. 

BR

Bolcheviggo

Hi Bolcheviggo!

Thanks a lot for your feedback! If you like, feel free to keep us updated.

Best regards

Denny

B

I have got the new card today and installed it - BUT no change at all.

The menu where I should be able to turn VoLTE on or off is not visible... 

It looks more and more like a problem in my Xiaomi Mi 9T Pro - hardware or software??

Hello Bolcheviggo!

Thank you for your message!

I think it's more likely a software problem then. I'm already trying to get any information, unfortunately without success.

In that case you really should contact the Xiaomi support directly.

Best regards

Denny

B

Are you sure the Phone supports wifi calls at all? 

Can't find any confirmation at all!? 

Hello!

According to our information from a network provider, the Mi 9T Pro supports wifi calling.


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