how 2 actived volte an wowifi - Xiaomi Mi 10 Guides, News, & Discussion

here is how to activede volte an wowifi
on mi10
i used it on my mi9 to actived it an it works also on mi10
open dailer an enter code
VoLTE *#*#86583#*#*
VoWIFI *#*#869434#*#*

Thanks. Applied these but got the messages that the carrier check is now disabled. Is the check meant to be disabled to enable the features?

austevo said:
Thanks. Applied these but got the messages that the carrier check is now disabled. Is the check meant to be disabled to enable the features?
Click to expand...
Click to collapse
hi yes they are now active if u check ur network settings

Related

[Guide]Enable VoLTE forcefully if Its not activated by default

As Title Speaks, Here is Little Workground for Enable VoLTE for OP6
Limitations :-
1. Sim Must be 4G Enabled.
2. You must Live under VoLTE Enabled Circle.
3.
Steps :-
1. Open Dialer
2. type USSD code *#*#4636#*#*
3. Select phone information
4. Now select Network type *LTE/UMTS auto(PRL)
5. Reboot..
6. Done
Go in Settings
Check if Both sim have VoLTE option Enabled
Also enable Data Roaming
Hope you get VoLTE..
I got VoLTE this way.. So just sharing..
Now Here is Bug with Vodafone VoLTE, when Trying to call, Network get bounced to 2G network.. It's Bug & Already reported to OnePlus..
If you still can't get VoLTE, Wait for Update.. ??
Doesn't work for me, no volte option under both sim settings and phone info switches back, TD-SCDMA/CDMA/UMTS
neo387 said:
Doesn't work for me, no volte option under both sim settings and phone info switches back, TD-SCDMA/CDMA/UMTS
Click to expand...
Click to collapse
There should be VoLTE option for your sim..
If no, There is many chances that your SIM maybe not 4G ready or your circle don't have VoLTE feature..
neo387 said:
Doesn't work for me, no volte option under both sim settings and phone info switches back, TD-SCDMA/CDMA/UMTS
Click to expand...
Click to collapse
Needs root but the only way I got it to work here is with the magisk module.
Ya, don't go playing with the band selection, or you may just get dropped to 2g connection with no LTE possible.
After digging around, I found a fix to get LTE back.
Download the "Network Signal Guru" app from the Play Store.
I told it to "Clear Forcings" in the menu, and LTE is back up.
Cantn find The Module can You give some more Informationen?
This won't work in Europe at least, no matter how Volte ready is your network/SIM card. OnePlus just ignores the issue.
This method https://forum.xda-developers.com/on...-volte-vowifi-german-carriers-t3817542/page28 works for activating VoLTE if your operator had enabled it for you.
I tried the method in the current post, but only got the toggles in the menu and not the real thing.
Had to call the mobile operator (Telenor BG, Bulgaria) to ask them to activate VoLTE and then did the method in the linked post.
I have a non-rooted OP6 and I'm now effectively using VoLTE on my network. Hope that helps.
Hmmm, does anybody know which was the previous default setting? I would like to revert it back and don't remember what setting was set before...
fourcc said:
hmmm, does anybody know which was the previous default setting? I would like to revert it back and don't remember what setting was set before...
Click to expand...
Click to collapse
td-scdma / cdma / umts
CYB3R0ID694 said:
As Title Speaks, Here is Little Workground for Enable VoLTE for OP6
Limitations :-
1. Sim Must be 4G Enabled.
2. You must Live under VoLTE Enabled Circle.
3.
Steps :-
1. Open Dialer
2. type USSD code *#*#4636#*#*
3. Select phone information
4. Now select Network type *LTE/UMTS auto(PRL)
5. Reboot..
6. Done
Go in Settings
Check if Both sim have VoLTE option Enabled
Also enable Data Roaming
Hope you get VoLTE..
I got VoLTE this way.. So just sharing..
Now Here is Bug with Vodafone VoLTE, when Trying to call, Network get bounced to 2G network.. It's Bug & Already reported to OnePlus..
If you still can't get VoLTE, Wait for Update.. ??
Click to expand...
Click to collapse
It doesn't work with Kuwait Viva !
If you want to get VoLTE and VoWiFi menu under SIM options in your OP6 just type *#800# in default dialer (not working in ther dialers) and under oneplus logkit>Function switch there is VoLTE and VoWiFi switch This is only to have that switch visible in menu so it isnt a guarantee that VoLTE will work on your device because your network carrier must support it and if it is not supported by carrier then VoLTE will not work no matter if you enable it with menu switch
Follow my Guide to activate VoLTE and VoWiFi for OnePlus 6...
is there a way to fix volte on pie beta 1?
I was using VoLTE-OEM-Lab on 5.1.11
jamal2367 said:
Follow my Guide to activate VoLTE and VoWiFi for OnePlus 6...
Click to expand...
Click to collapse
Thanks, I used your guide and was able to enable VoLTE for my Vodafone.de LTE contract, my second card is from Sparhandy which is also I believe Vodafone but without LTE/4G, unfortunately VoWIFI is not showing up, I confirmed with Vodafone/LTE contract that it is enabled and it is, any suggestions?
TIA
somebody knows how to set up VoLTE on OOS9 ?
"Enhanced networking" missing for me
No one in Pie tried to set up VoLTE
VoLTE and VoWiFi just work, what setting up needs done?
---------- Post added at 08:17 AM ---------- Previous post was at 08:15 AM ----------
jabs said:
somebody knows how to set up VoLTE on OOS9 ?
"Enhanced networking" missing for me
Click to expand...
Click to collapse
Go to "Phone", Settings, SIM & Network Settings, then in to the SIM you want, and the VoLTE and WiFi calling is in there. It's NOT in the traditional Settings app.
jabs said:
No one in Pie tried to set up VoLTE
Click to expand...
Click to collapse
jamal2367's method (see here in English: https://forum.xda-developers.com/oneplus-5t/how-to/guide-volte-vowifi-german-carriers-t3817542) works fine with OOS9/Pie.
Just updated & patched modem config with PDC as described in the link (I'm using the config "Telefonica_UK_Commercial" for O2 in Germany) and I'm up again with VoLTE/VoWifi working..
Still a shame that Oneplus is incapable to do enable the right config by default..
but it is just that in OOS9 you miss those switches what were in OOS5.11 in "Enhanced networking, this group is all missing in Pie

HINT - How to activate VoLTE and VoWIFi without sys modification on MIUI v10

Hello all,
Just for your awareness, there's a way to enable both VoLTE and VoWIFI on MIUI V10 roms (xiaomi.eu included!).
Use these codes in the dialer:
VoLTE *#*#86583#*#*
VoWIFI *#*#869434#*#*
I'm attaching a proof it works from the latest xiaomi.eu beta present on my Mix2s (polish carrier nju mobile/orange)
LuHash said:
Hello all,
Just for your awareness, there's a way to enable both VoLTE and VoWIFI on MIUI V10 roms (xiaomi.eu included!).
Use these codes in the dialer:
VoLTE *#*#86583#*#*
VoWIFI *#*#869434#*#*
I'm attaching a proof it works from the latest xiaomi.eu beta present on my Mix2s (polish carrier nju mobile/orange)
Click to expand...
Click to collapse
Thank you working for me!
LuHash said:
Hello all,
Just for your awareness, there's a way to enable both VoLTE and VoWIFI on MIUI V10 roms (xiaomi.eu included!).
Use these codes in the dialer:
VoLTE *#*#86583#*#*
VoWIFI *#*#869434#*#*
I'm attaching a proof it works from the latest xiaomi.eu beta present on my Mix2s (polish carrier nju mobile/orange)
Click to expand...
Click to collapse
I don't see the VoWiFi signal in your screenshot, only the VoLTE. Has Xiaomi announced they will support VoWiFi now? I was always able to turn these settings on, but the only one that works is the VoLTE. The WiFi is not supported on the Mix 2s as far as I know with no plans to enable this feature. Even with system modifications, I was able to get the radios toggled on in the *#*#4636#*#* menu, but still none of the radios would actually connect as a VoWiFi call. Even by enabling different radios through QPST didn't enable VoWiFi, so I'm a bit weary of the last one.
If you can, please put your phone in airplane mode, then connect to WiFi only and attempt to make a call. If it works, then VoWiFi is truly enabled. If not, then you just have a fancy setting that doesn't work. Can you please try and report back. Because if this is true, it would eliminate a huge issue of reception in my house, and I will hesitantly head back over to my windows machine to toggle my radios back.
I was going to post the same thing. It does not actually allow you to call over WiFi, at least not in t mobile.
This doesnt work. Airplane mode with WiFi on does not allow calls to dial out.
However, With a Google Fi sim, I can wifi call using the hangouts dialer using the above settings (Airplane mode + WiFi on)
JonMS said:
This doesnt work. Airplane mode with WiFi on does not allow calls to dial out.
However, With a Google Fi sim, I can wifi call using the hangouts dialer using the above settings (Airplane mode + WiFi on)
Click to expand...
Click to collapse
Yeah, I can use Hangouts as well just using my Hangouts dialer, not on project fi. I have it synched to an old Google voice number. But that is using a true VoIP of sorts, so makes sense. That not being my primary number though, and I'm too lazy to switch...
Sent from my Mi MIX 2S using Tapatalk
Being with Vodafone, both VoLTE and VoWifi working. Cheers pal
@All claiming not working - you're of course right, that's due to the fact there's no profile in the OS for the providers mentioned
It works on Movistar Colombia
i just have volte icon when i disable with that code.
Strange no?
LuHash said:
Hello all,
Just for your awareness, there's a way to enable both VoLTE and VoWIFI on MIUI V10 roms (xiaomi.eu included!).
Use these codes in the dialer:
VoLTE *#*#86583#*#*
VoWIFI *#*#869434#*#*
I'm attaching a proof it works from the latest xiaomi.eu beta present on my Mix2s (polish carrier nju mobile/orange)
Click to expand...
Click to collapse
Hi Luhash,
is VoWiFi still working for you on nju/orange?
i was just thinking of switching to orange Flex, and read this -> https://www.telepolis.pl/wiadomosci/sprzet/orange-nju-mobile-xiaomi-volte-wifi-calling-vowifi
dj69holland said:
Hi Luhash,
is VoWiFi still working for you on nju/orange?
i was just thinking of switching to orange Flex, and read this -> https://www.telepolis.pl/wiadomosci/sprzet/orange-nju-mobile-xiaomi-volte-wifi-calling-vowifi
Click to expand...
Click to collapse
Oi,is working good on MIUI 11 too.
Sent from my [device_name] using XDA-Developers Legacy app
VoWifi is working on the mix2s! But you need to modify some system files
XDRdaniel said:
VoWifi is working on the mix2s! But you need to modify some system files
Click to expand...
Click to collapse
Can you elaborate? Is there any hope for WiFi calling on Mi9 SE? (MIUI Global 10.3.9 | )
This is a must-have feature for me, so I'll return the phone if there is no way to fix it.
VideoVeteran said:
Can you elaborate? Is there any hope for WiFi calling on Mi9 SE? (MIUI Global 10.3.9 | )
This is a must-have feature for me, so I'll return the phone if there is no way to fix it.
Click to expand...
Click to collapse
What network are you on, and country?
XDRdaniel said:
What network are you on, and country?
Click to expand...
Click to collapse
T-Mobile, USA.
Hi all!
Has anyone had any luck with the Mix 2S on 3 UK? Tried everything I found but still no VoWifi...
Thanks!
Doesn't work
I am in french operator bouygue telecom and it doesn't work whith code enter in miui.
Any idea ?
i am in xiaomi.eu weekly 21.0.7 (MIUI 11/Android 10)
Would this work for Verizon ?
Would this work for Verizon ?

volte and wifi calliing

hi was wondering if there is any way how to enable volte and wifi calling? im using tmobile i dont see volte anywhere without root if possible for now?
Thanks
raven213 said:
hi was wondering if there is any way how to enable volte and wifi calling? im using tmobile i dont see volte anywhere without root if possible for now?
Thanks
Click to expand...
Click to collapse
VOLTE should work out of the box.
raven213 said:
hi was wondering if there is any way how to enable volte and wifi calling? im using tmobile i dont see volte anywhere without root if possible for now?
Thanks
Click to expand...
Click to collapse
Have you tried, *#*#86583#*#, to see if that works for you?
jcsww said:
Have you tried, *#*#86583#*#, to see if that works for you?
Click to expand...
Click to collapse
yeah i just dont see volte on my phone lol plus when i make a call it changes to 4g
raven213 said:
yeah i just dont see volte on my phone lol plus when i make a call it changes to 4g
Click to expand...
Click to collapse
4G is technically LTE. The Xiaomi firmware doesn't seem to have an LTE icon, at least not that I have seen. 4G and 4G+ are LTE and LTE-A.
jcsww said:
4G is technically LTE. The Xiaomi firmware doesn't seem to have an LTE icon, at least not that I have seen. 4G and 4G+ are LTE and LTE-A.
Click to expand...
Click to collapse
thanks for the info
After the *#*#86583#*#, try going into Mobile & Networks, and select your SIM card. There should be a VoLTE enabled option now. This option didn't show up for me until I did that and then I had to turn it on.
There's now a tiny VoLTE icon in the notification bar and when I'm on a call, it stays there.
Try code *#*#869434*#*# to disable VoWIFI check. And check if it working on T-Mobile.
I don't have Tmobile to check it.
mohanparvatham said:
Try code *#*#869434*#*# to disable VoWIFI check. And check if it working on T-Mobile.
I don't have Tmobile to check it.
Click to expand...
Click to collapse
No, VoWifi doesn't work on t mobile
What ROM's have people tried for WiFi Calling? Does the OP refer to T-Mobile in the UK/EU or USA? The Global Stable seems to have some less features compared to the Chinese Stable. I had Advanced Messaging working in the default text app when I was on Chinese Stable by doing nothing but it does not seem to work on the Global Stable.
got volte working on tmobile US just not wifi calling but its fine
raven213 said:
got volte working on tmobile US just not wifi calling but its fine
Click to expand...
Click to collapse
Which ROM is your device using? I really want to flash my green one back to the Chinese Stable. Global Stable just isn't as good in my opinion.
jcsww said:
Which ROM is your device using? I really want to flash my green one back to the Chinese Stable. Global Stable just isn't as good in my opinion.
Click to expand...
Click to collapse
Eu global the lastest one 10.2.2.0
Ever find a solution to this? I am on MIUI Global 10.3 (Stable) and am able to turn off Mobile data( T Mobile is my carrier in U.S.) and with my WiFi on the device i can still make and receive phone calls. In this configuration i obviously still see my WiFi symbol in the Notification bar as well as the VoLTE symbol. Don't know if this will help you at all, but it is some stuff i have noticed recently when i was trying to figure out why T-Mobile apps dont work on my Mi Mix 3.
With WiFi turned off and Mobile Data turned on i am able to make phone calls(obviously) with VoLTE and am able to see the LTE+ symbol in the Notification bar as well.
If i go to About Phone --> Tap "Internal Storage" 4 time(brings you to the Testing Menu) and looking into the Phone Info i see the following...
Set Preferred Network Type: LTE/TD-SCDMA/UMTS
Mobile Radio Power: On
VoLTE Provisioned: Off
Video Calling Provisioned: Off
WiFi Calling Provisioned: Off
EAB/Presence Provisioned: Off
When i bring this menu up on my previous phone(LG G7 ThinQ) i see that the Preferred Network type was different...so i changed my Mi Mix 3 just to match to see how it would change
My LG G7(without a SIM inserted) shows the following
Set Preferred Network Type: LTE/UMTS auto (PRL)
Mobile Radio Power: On
VoLTE Provisioned: On
Video Calling Provisioned: On
WiFi Calling Provisioned: On
EAB/Presence Provisioned: Off
Changing the network type on my Mi Mix 3 didnt do much, however when i changed it LTE/CDMA/UMTS auto(PRL) the VoLTE Provisioned and Video Calling Provisioned both switched to "On".
I dont quite understand this so for the most part i have just left it to match my LG's setting since i can change the network type back to LTE/UMTS auto(PRL) after and the settings stay set to "On"
Made a few test phone calls after with WiFi on and off, everything seems to work just fine regardless of what the phone displays.
[email protected] said:
Ever find a solution to this? I am on MIUI Global 10.3 (Stable) and am able to turn off Mobile data( T Mobile is my carrier in U.S.) and with my WiFi on the device i can still make and receive phone calls. In this configuration i obviously still see my WiFi symbol in the Notification bar as well as the VoLTE symbol. Don't know if this will help you at all, but it is some stuff i have noticed recently when i was trying to figure out why T-Mobile apps dont work on my Mi Mix 3.
With WiFi turned off and Mobile Data turned on i am able to make phone calls(obviously) with VoLTE and am able to see the LTE+ symbol in the Notification bar as well.
If i go to About Phone --> Tap "Internal Storage" 4 time(brings you to the Testing Menu) and looking into the Phone Info i see the following...
Set Preferred Network Type: LTE/TD-SCDMA/UMTS
Mobile Radio Power: On
VoLTE Provisioned: Off
Video Calling Provisioned: Off
WiFi Calling Provisioned: Off
EAB/Presence Provisioned: Off
When i bring this menu up on my previous phone(LG G7 ThinQ) i see that the Preferred Network type was different...so i changed my Mi Mix 3 just to match to see how it would change
My LG G7(without a SIM inserted) shows the following
Set Preferred Network Type: LTE/UMTS auto (PRL)
Mobile Radio Power: On
VoLTE Provisioned: On
Video Calling Provisioned: On
WiFi Calling Provisioned: On
EAB/Presence Provisioned: Off
Changing the network type on my Mi Mix 3 didnt do much, however when i changed it LTE/CDMA/UMTS auto(PRL) the VoLTE Provisioned and Video Calling Provisioned both switched to "On".
I dont quite understand this so for the most part i have just left it to match my LG's setting since i can change the network type back to LTE/UMTS auto(PRL) after and the settings stay set to "On"
Made a few test phone calls after with WiFi on and off, everything seems to work just fine regardless of what the phone displays.
Click to expand...
Click to collapse
Put the device in airplane mode, then turn on WiFi. Can you make calls? I can't! Turning on WiFi and enabling WiFi Calling doesn't mean the calls are going over WiFi. Especially if you are still seeing VoLTE or any time of mobile network connection.
Edit: Go down to the very bottom, hit more, hit IMS status, and see what it says.
Yeah I looked at the IMIS before, voice over wifi has always(I assume) said not unavailable
[email protected] said:
Yeah I looked at the IMIS before, voice over wifi has always(I assume) said not unavailable
Click to expand...
Click to collapse
No access to the IMS settimgs is more than likely why we can't get it working. We cam't see the settings to even compare them to what they should be.
I am on MIUI Global 10.3 (Stable) / Chinese Device / T-Mobile Germany.
VoWiFi as well as VoLTE are working on my device, however you need root access to enable the VoWiFi profile.
Once it is working you will see the WiFi calling icon in the status bar.
I was following this guide to enable WiFi calling on the Mi Mix 3:
https://forum.xda-developers.com/poco-f1/how-to/guide-activate-vowifi-wlan-call-t3871263
I don't know if the mentioned profile will work in other countries as well but maybe someone with more insight can shed some light into this.
I remember that VoLTE was working out of the box, you just have to disable the carrier check with the USSD code to make it available in settings.
VoWiFi can be enabled via USSD code as well, however even after changing the setting to enabled and preferred WiFi calling it does not register without the profile change.
VoLTE: *#*#86583#*#*
VoWiFi: *#*#869434#*#*
I had to redo the profile change after each upgrade with TWRP, since the firmware partitions get updated as well.
I hope this will help. :fingers-crossed:
I have Mix 3 with U.S T-Mobile service. After disabling the VoWiFi check with *#*#869434#*#*, the option for WiFi calling check box appears under the T-Mobile SIM section, but WiFi calling is not working when tested under airplane mode with WiFi enabled.
Vowifi works fine on MTS (Russia). All you need:
1. Activate vowifi service from the operator
2. Disable service check by command: *#*#869434#*#*
3. Create folder into: /system_root/system/priv-app/MBNLoader
4. Copy into this folder APK: MBNLoader.apk (View attachment MBNLoader.apk
5. Give right privileges: -rw-r--r--
6. Reboot phone
7. Install from play market QuickshortcutMaker: https://play.google.com/store/apps/details?id=com.sika524.android.quickshortcut
8. Open it and go to tab apps
9. Find Modem Config
10. Open it (tap) and you will see a lot of MCFG Modem configs.
11. Try one by one to start vowifi working
12. Enjoy!
Screenshots:

No VoLte option

I just bought poco f2 pro ,. No volte option to activate.
I had properly function Volte on my network operator with my old phone
Any way to activate Volte or to show this option. Because its missing in the SIM card setting
Go to dialer and put that code and pres dial
*#*#86583#*#*
I should say volte is activated the right setting will appear in sim settings . And also do a reboot.
Wysłane z mojego POCO F2 Pro przy użyciu Tapatalka
AFAIK
Check *#*#4636#*#*
VoLTE *#*#86583#*#*
VoWiFi *#*#869434#*#*
Mastakony said:
Check *#*#4636#*#*
VoLTE *#*#86583#*#*
VoWiFi *#*#869434#*#*
Click to expand...
Click to collapse
Thank you, i flashed the latest stable Xiaomi.eu build and i could use this numbers to check and to enable and disable carrier check. But it seems my german provider (congstar) dont allow the phone / profile to have volte option enabled.
// edit
I missunderstood the "workflow" of the codes.
VoLTE and VoWifi carrier check needs to be disabled, then the Option in SIM Cards gets show where you can finally enable VoLTE and VoWifi.
After disabling the carrier checks and enabling the options in the SIM Card menu i can use VoLTE and VoWifi how it seems. I will report back when i know more.
https://www.chinahandys.net/wlan-telefonie-vowifi-bei-xiaomi-smartphones-aktivieren/ for reference
meilbox said:
Go to dialer and put that code and pres dial
*#*#86583#*#*
I should say volte is activated the right setting will appear in sim settings . And also do a reboot.
Wysłane z mojego POCO F2 Pro przy użyciu Tapatalka
Click to expand...
Click to collapse
Mastakony said:
Check *#*#4636#*#*
VoLTE *#*#86583#*#*
VoWiFi *#*#869434#*#*
Click to expand...
Click to collapse
thank you i tried and option showed up , thank you :laugh::laugh:
spychodelics said:
But it seems my german provider (congstar) dont allow the phone / profile to have volte option enabled.
Click to expand...
Click to collapse
Thats the problem, just the big player are added by Telekom (Congstar).
I have poco f2 pro with 12.0.4.0(QJKMIXM) and root enabled, phone info does not show VoLTE/VoWiFi enable, while it show on setting. How to make voLTE/VoWiFi enabled in phone info?
i928 said:
I have poco f2 pro with 12.0.4.0(QJKMIXM) and root enabled, phone info does not show VoLTE/VoWiFi enable, while it show on setting. How to make voLTE/VoWiFi enabled in phone info?
Click to expand...
Click to collapse
Step 1: Dial * # * # 86583 # * # *. Once you are done, there will be a message ” VoLTE Carrier check was disabled ” appear on the screen, thus activating Volte on your Xiaomi phone
Step 2: Now go to Settings> SIM cards and mobile networks.
Step 3: Here you will have to activate the option Use VoLTE
NOSS8 said:
Step 1: Dial * # * # 86583 # * # *. Once you are done, there will be a message ” VoLTE Carrier check was disabled ” appear on the screen, thus activating Volte on your Xiaomi phone
Step 2: Now go to Settings> SIM cards and mobile networks.
Step 3: Here you will have to activate the option Use VoLTE
Click to expand...
Click to collapse
I had activated VoLTE and shown in setting.jpg. "Phone Info 1" might be due to my carrier (H2O wireless).
i928 said:
I had activated VoLTE and shown in setting.jpg. "Phone Info 1" might be due to my carrier (H2O wireless).
Click to expand...
Click to collapse
Same for before activate.

volte working ?

Does volte work on this phone straight out of the box, or do you need the eu rom to get it to work?
Need to use the service code to disable the carrier validation.
Sent from my Mi 10 Ultra using Tapatalk
Princevelyn said:
Does volte work on this phone straight out of the box, or do you need the eu rom to get it to work?
Click to expand...
Click to collapse
Yes, it works for me. I am on weekly 20.10.15. Of course i put code into dialer first to activate the VoLTE option.
But VoWiFi doesn't work at all.
Does 5G work?
Mine shows VoWiFI in the status bar but not sure if it's actually been used for a call, see top of screenshot
Sathelp said:
Mine shows VoWiFI in the status bar but not sure if it's actually been used for a call, see top of screenshot
Click to expand...
Click to collapse
How you did it to get this icon? What is your version of MIUI release?
You can check is it working (or not) for callis in the dialer app on the call log. It should show the type of connection next to the data, time and duration of particular call.
Yes, but I rarely use SIM 2.
I am on the EU ROM and it and VoLTE are activated in the ROM with control from the SIM control page. See screenshot.
Sathelp said:
Yes, but I rarely use SIM 2.
I am on the EU ROM and it and VoLTE are activated in the ROM with control from the SIM control page. See screenshot.
Click to expand...
Click to collapse
I understand that you are on EU ROM but what is your version? Stable or weekly? And what is the version number? (20.xx.xx)
For checking if VoWiFi works make a call and check the log in call log for call type, please.
I assume you have Mi 10 Ultra?
I have had both VoLTE and VoWiFI on every version of EU ROM 8 have used since coming from stock Chinese on both A10 and now A11 since launch. I'm on 20.11.05 this week. Both the most recent stable and all weeklies have had it working on the EU ROM.
Since A11, the option to have a preference of voice over Wi-fi or voice over LTE has dropped, you just get the option to turn on voice over LTE, looks like voice over Wi-fi is now preselected.
I understand that I can check my call log but I rarely use SIM 2, so cannot see any use of it on Wi-Fi in my current list and I am not making calls just to provide proof that it works. If 8t says so then I take it that it will. Why would the guys at Xiaomi EU bother to implement it if it doesn't work.
If you are not on the EU ROM, then get it flashed and if you don't like it, go back to stock and relock your bootloader. I bet once your here, I doubt if you will go back.
And although I checked yesterday and saw none, I did make a call and strangely it went out on SIM 2 as a VoWiFI call. See first line screenshot. Second line it never connected but top line shows the call over 4mins on VoWiFI. So it is fully implemented
Sathelp said:
And although I checked yesterday and saw none, I did make a call and strangely it went out on SIM 2 as a VoWiFI call. See first line screenshot. Second line it never connected but top line shows the call over 4mins on VoWiFI. So it is fully implemented
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Wow. Thanks.
That is strange. Me and other people cannot get it working.
I am on weekly 20.10.15.
And what type of Wi-Fi you have connected to? I mean 2.4GHz or 5GHz...
I am currently on a 5Ghz link at home but do get it out and about on 2.4 GHz too, I've never had an issue, see screenshot.
EDIT, just to show the VoLTE on mine, the second screenshot was taken away from the wi-fi, so shows VoLTE on the EU weekly ROM.
wyflover said:
Need to use the service code to disable the carrier validation.
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zencooler said:
.... Of course i put code into dialer first to activate the VoLTE option..
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Hi folks
it seems I cannot find those codes, would you mind sharing a link (or the codes ) ? Are those two the same codes or different ones ?
I appreciate your help, thanks,
Axel
s3axel said:
Hi folks
it seems I cannot find those codes, would you mind sharing a link (or the codes ) ? Are those two the same codes or different ones ?
I appreciate your help, thanks,
Axel
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For VoWiFi you need to put code *#*#869434#*#* and after restart the phone set on VoWiFi in carrier configuration (tap on SIM card).

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