New VoWifi on Xiaomi mi10 ultra ROM xiaomi.eu

[alfa666]

I installed stable 12.0.13 but I'm not getting VoWifi despite ran codes *#*#869434#*#* and set on VoWiFi in carrier configuration.
Same SIM it's giving VoWifi without any issue in other cell phones. Maybe it's a modem config matter ?

 

[Zencooler]

I installed stable 12.0.13 but I'm not getting VoWifi despite ran codes *#*#869434#*#* and set on VoWiFi in carrier configuration.
Same SIM it's giving VoWifi without any issue in other cell phones. Maybe it's a modem config matter ?

I have the same problem. The option for VoWiFi is switched on but it doesn't work at all on my both SIM cards. They work fine in other smartphones using VoWiFi.

Sent from my Mi Ultra via Tapatalk

 

[marcel112]

i know its due to android 11. i have the same on mi10 pro since it moved to android 11

 

[Zencooler]

i know its due to android 11. i have the same on mi10 pro since it moved to android 11

Not in this case. There is no Android 11 for Mi Ultra yet. We are still on Android 10 and I think this is a problem with the EU ROM for this version of phone...

Sent from my Mi Ultra via Tapatalk

 

[innerTide]

Not in this case. There is no Android 11 for Mi Ultra yet. We are still on Android 10 and I think this is a problem with the EU ROM for this version of phone...

Sent from my Mi Ultra via Tapatalk

Here in the Netherlands with T-Mobile NL. The VoWiFi can be enabled with the service code. Did you set the preference for WiFi calling?

Sent from my Mi 10 Ultra using Tapatalk

 

[alfa666]

Yes, I did
Not working
You are so fortunate, I assume you are in the same ROM as me

 

[innerTide]

Yes, I did
Not working

I remember my VoWiFi was automatically turned off when I connected to a 2.4G WiFi. Will it be an issue? I'm normally connected to a 5G WiFi6.

Sent from my Mi 10 Ultra using Tapatalk

 

[alfa666]

No 5G available in my area, but If I put SIM in another cell phone, I give VoWifi.

As you can see, option is on but no VoWifi

Enviado desde mi M2007J1SC mediante Tapatalk

 

[innerTide]

No 5G available in my area, but If I put SIM in another cell phone, I give VoWifi.

As you can see, option is on but no VoWifi

Enviado desde mi M2007J1SC mediante Tapatalk

Then it is really weird. Have you tried the original Chinese ROM? Does it work?

 

[Zencooler]

I remember my VoWiFi was automatically turned off when I connected to a 2.4G WiFi. Will it be an issue? I'm normally connected to a 5G WiFi6.

Sent from my Mi 10 Ultra using Tapatalk

I am on latest weekly rom (20.10.15) and option for VoWiFi is switched on but it doesn't work on either on 2.4GHz WiFi nor 5GHz WiFi. Something's wrong in this rom on Mi Ultra.

Sent from my Mi Ultra via Tapatalk

 

[innerTide]

I am on latest weekly rom (20.10.15) and option for VoWiFi is switched on but it doesn't work on either on 2.4GHz WiFi nor 5GHz WiFi. Something's wrong in this rom on Mi Ultra.

Sent from my Mi Ultra via Tapatalk

I'm on the Stable 12.0.13. Maybe it is due to the version difference?

Sent from my Mi 10 Ultra using Tapatalk

 

[alfa666]

Then it is really weird. Have you tried the original Chinese ROM? Does it work?

Yes, I did. Not work either

 

[Zencooler]

I'm on the Stable 12.0.13. Maybe it is due to the version difference?

Sent from my Mi 10 Ultra using Tapatalk

No, because Alfa666 is also on stable rom and as you see it is not working on his Ultra too...

Sent from my Mi Ultra via Tapatalk

 

[innerTide]

There's a new post here. Could you please check if you can connect your phone to AC or AX WiFi for VoWiFi? https://xiaomi.eu/community/threads...&share_fid=73822&share_type=t&link_source=app

Sent from my Mi 10 Ultra using Tapatalk

 

[Fighter]

There's a new post here. Could you please check if you can connect your phone to AC or AX WiFi for VoWiFi? https://xiaomi.eu/community/threads...&share_fid=73822&share_type=t&link_source=app

Sent from my Mi 10 Ultra using Tapatalk

the link is not working, here is a working link
https://xiaomi.eu/community/threads/mi-9-vowifi-not-working-on-802-11n-only-ac.58189

 

[innerTide]

the link is not working, here is a working link
https://xiaomi.eu/community/threads/mi-9-vowifi-not-working-on-802-11n-only-ac.58189

Ah, thanks a lot

Sent from my Mi 10 Ultra using Tapatalk

 

[Zencooler]

There's a new post here. Could you please check if you can connect your phone to AC or AX WiFi for VoWiFi? https://xiaomi.eu/community/threads...&share_fid=73822&share_type=t&link_source=app

Sent from my Mi 10 Ultra using Tapatalk

Thank you for this trick&tips. Unfortunately it doesn't work for me. I mean even if I am connected to 5GHz WiFi turning on/off Wifi Hotspot doesn't change the issue (still VoWiFi doesn't work)

Sent from my Mi Ultra via Tapatalk

 

[Fighter]

this is some serious bug, hopefully the devs will be able to fix it and make it another feature of the xiaomi.eu rom

 

[innerTide]

Thank you for this trick&tips. Unfortunately it doesn't work for me. I mean even if I am connected to 5GHz WiFi turning on/off Wifi Hotspot doesn't change the issue (still VoWiFi doesn't work)

Sent from my Mi Ultra via Tapatalk

To be honest, I don't expect VoWiFi will work quite well on Xiaomi's Chinese models. As far as I know, VoWiFi is supported by none of the three Chinese mobile carriers, i.e. China Mobile, China Unicom and China Telecom. The 4G coverage is quite enough so they don't need to put extra effort for VoWiFi.
Based on my guessing, Xiaomi's VoWiFi policy is more conservative to ensure the QoS. The policy should be encoded in the carrier configuration file which EU mod won't touch or modify. If the original Chinese ROM doesn't support the VoWiFi for specific carriers, there's a high chance that EU ROM won't.

Sent from my Mi 10 Ultra using Tapatalk

 

[alfa666]

To be honest, I don't expect VoWiFi will work quite well on Xiaomi's Chinese models. As far as I know, VoWiFi is supported by none of the three Chinese mobile carriers, i.e. China Mobile, China Unicom and China Telecom. The 4G coverage is quite enough so they don't need to put extra effort for VoWiFi.
Based on my guessing, Xiaomi's VoWiFi policy is more conservative to ensure the QoS. The policy should be encoded in the carrier configuration file which EU mod won't touch or modify. If the original Chinese ROM doesn't support the VoWiFi for specific carriers, there's a high chance that EU ROM won't.

Sent from my Mi 10 Ultra using Tapatalk

But I saw in xiaomi.eu chat few Mi10 ultra pics showing working with VoWiFi

 

[alfa666]

But I saw in xiaomi.eu chat few Mi10 ultra pics showing working with VoWiFi

I' switched to 5G wifi spot and still not working VoWiFi

 

[alfa666]

Very quiet ove here, hope somebody smarter than me could find solution to have VoWifi working

 

[alfa666]

Hi community, I still have no access to VoWifi and surprised anybody has reaction about this issue.
All the best for all of you

 

[Mark F]

What network provider do you have? Have you asked if it is enabled on your account? Mine works fine, you can see the VoWiFI status and on the other pic, you can see a call by VoWiFI circled. Mi10 Ultra EU Weekly ROM.

 

[Abu Joseph]

Mine works fine too View attachment 33862