Miui 11 and voLTE missing

[alessio81pa]

After I install miui 11 the option volte in setting Is missing.
Mi 9 Eu version .

 

[sorenone]

Same here...?

 

[Jehonan]

At me is still there and working as usual.
I didn't touched anything before and after new ROM installation so it's really strange.

 

[croul01]

In my as well dissapear.
But call when im in 4g still working.

Sent from my MI 9 using Tapatalk

 

[alessio81pa]

In mine when call change in H+ from 4g

 

[motorsense]

After I install miui 11 the option volte in setting Is missing.
Mi 9 Eu version .

Here also. As a workaround you can disable VoLTE Carrier check (*#*#86583#*#*). This works at me.

 

[dare2k]

For me it appeared in the settings with the update, but still cannot activate it

 

[pnx2york]

I have the same problem pls try
VoLTE *#*#86583#*#*
VoWIFI *#*#869434#*#*
It's work

 

[orestis46]

I have the same problem pls try
VoLTE *#*#86583#*#*
VoWIFI *#*#869434#*#*
It's work

For my case, VoLTE was operational before the upgrade (using 10.3.11 international version on my Mi9T in Vodafone GR). An icon was displayed for VoLTE on the carrier signal in my mobile's screen when it was connected in 4G.
Now it does not work anymore (upgraded yesterday to MIUI 11.0.1 international version, no icon when connected in 4G networks and actually drops to 3G when performing a call so it gets circtuit switched and not IP based via IMS). Of course it is not a matter of settings to disable carrier checks (as already done/undone several times, reboot etc, since it was in disabled state already and the settings are there to enable/disable VoLTE and VoWiFi).
VoWiFi still works but only when using Vodafone's application for WiFi calling.

 

[Dr.Scythe]

For my case, VoLTE was operational before the upgrade (using 10.3.11 international version on my Mi9T in Vodafone GR). An icon was displayed for VoLTE on the carrier signal in my mobile's screen when it was connected in 4G.

How did you enable Volte and ViWiFi on Vodafone Greece? I also have a mi 9t and cannot enable them. Can you help. Thanks!!

 

[orestis46]

How did you enable Volte and ViWiFi on Vodafone Greece? I also have a mi 9t and cannot enable them. Can you help. Thanks!!

Contact Vodafone GR (even their website and use chat to request VoWiFi/VoLTE service for your mobile number), they will handle it. Meanwhile you can also use *#*#VOLTE#*#* and *#*#VOWIFI#*#* settings to check that are in disabled state. You should be able to see VoLTE and VoWiFi settings (enable/disable etc) in your Sim cards & mobile settings (pick your Vodafone SIM settings then).

 

[trxjam]

Contact Vodafone GR (even their website and use chat to request VoWiFi/VoLTE service for your mobile number), they will handle it. Meanwhile you can also use *#*#VOLTE#*#* and *#*#VOWIFI#*#* settings to check that are in disabled state. You should be able to see VoLTE and VoWiFi settings (enable/disable etc) in your Sim cards & mobile settings (pick your Vodafone SIM settings then).

I have Vodafone in Italy the same problem but I wouldn't know how to insert the writing in the numeric keypad I just slip the symbols.

 

[toscha42]

There're characters below the numbers.
Then *#*#VOLTE#*#* is keyed in as *#*#86583#*#*.

Cheers
Toscha

 

[trxjam]

There're characters below the numbers.
Then *#*#VOLTE#*#* is keyed in as *#*#86583#*#*.

Cheers
Toscha

then I had already tried, but with Vodafone in Italy it was not activated, on the Miui 10 the button was available..

 

[Johniiii]

Mi 9 miui 11.0.5 volte vowifi dual 4g options missing

Hello ,
Mi 9 bought from Greece you.gr after miui 11 android 10 upgrade, volte vowifi and dual 4g options missing !
Also sms app fails to send sms if the Use GSM alphabet option is enabled!
*#*#VOLTE#*#* and *#*#VOWIFI#*#* solves the issue! i don't no if there is similar code for dual 4g enable or it not needed and just works!
I am using only one sim card cosmote, so i can't check the dual 4g!
Thank u

 

[menego_matteo]

Dialing the code "*#*#86583#*#*, the message "volte carrier check disabled" is shown. Then I can toggle the VoLTE option in settings, and it works when making a phone call. Look at the screenshots I attached.

Phone: Xiaomi Mi 9
Contry: Italy
Carrier: TIM
Screenshots:
https://ibb.co/WxQZBKc
https://ibb.co/7QfsDyP

 

[quadeur06]

Dialing the code "*#*#86583#*#*, the message "volte carrier check disabled" is shown. Then I can toggle the VoLTE option in settings, and it works when making a phone call. Look at the screenshots I attached.

Phone: Xiaomi Mi 9
Contry: Italy
Carrier: TIM
Screenshots:
https://ibb.co/WxQZBKc
https://ibb.co/7QfsDyP

OMG THANKS
It's work !!
In Miui 10 this code don't work for me , and now it's work

Country : France
Carrier : Sosh(Orange)

 

[toscha42]

I am using only one sim card cosmote, so i can't check the dual 4g!
Thank u

Just returned from a trip to Thailand. VoLTE and ViWiFi work on both sim cards, Telekom (DE) and AIS (TH).

Cheers
Toscha

 

[quadeur06]

Edit : VoLTE is activate...but don't work.....

 

[Laus_bub]

Hi, I got a Mi 9 SE. I activated volte and wifi call with the codes under MIUI 10 some weeks ago. Volte and Wifi Call worked like a charm.
Now I received the Miui 11 update some days ago. Unfortunately Volte and Wificall stopped working.
Reentering the codes worked, but with enabling Carrier check again ...
Strange thing is that in settings the option to enable Volte and wifi call is still visible and activated - but I can't see the volte logo und it obviously doesnt't work ...
I read in another forum to do a factory reset might help --- but it got a lot of installed apps etc and I am not willing to reinstall everything ...
Anyone an idea how to reactivate?
Thanks for help!