wifi calling not working after android 11 update - OnePlus 8 Questions & Answers

just got new op8. carrier is tmobile. at original setup both volte and wifi calling working fine. after update to android 11 volte works but no wifi. tried the logkit app solution to force wifi but still does not work. does anyone know how to enable it or how to roll back the update and return to 10. wifi calling is essential for me. thanks for any help

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[Q] VoLTE and WiFi calling

Does anyone know if this phone will ever support VoLTE and WiFi calling on T-Mobile? I was hoping that since the pop astro supports these features, hopefully they'd come to this phone as well.
ffelice said:
Does anyone know if this phone will ever support VoLTE and WiFi calling on T-Mobile? I was hoping that since the pop astro supports these features, hopefully they'd come to this phone as well.
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Unknown but since Hangouts Dialer works fine why not use that for your wifi calls?
According to some, Lollipop was/is supposed to have WiFi Calling baked into the firmware for all the phones running it. And if your SIM card supported it, it would automatically enable it to be used. Have yet to see that though. I don't think this phone will ever get WiFi Calling since it's not a phone released through T-Mobile and doesn't have any T-Mobile software installed. VoLTE on the other hand should be already be supported on the phone.
It doesn't seem likely this phone will receive many updates either. Hope to be proven wrong though in the near future.
I've been using hangouts and it works OK, but gets blocked by my work WiFi requiring that I run a VPN if I want to use it. Hopefully VoLTE will start working, but for now it's not working in an area where I've previously been able to use it with a note 4. Thanks for your input.
I wish they find ways to put wifi calling feature on this thing in tmobile network soon.
Tagging along. I work in a building with a large basement area where I don't get cellular signal, but they have wireless access points installed in the area. It'd be nice to still make/receive calls down there as I'm down there frequently.
Only way we will see WiFi Calling on this device is if we get CM 13 ported over because CM 13 has native built in WiFi calling.
brian117 said:
Only way we will see WiFi Calling on this device is if we get CM 13 ported over because CM 13 has native built in WiFi calling.
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No. You need radio firmware with WiFi calling capabilities. That has nothing to do with CM13. Your device firmware HAS to support it. You will never see WiFi calling at that level with Idol 3.
Where can i able to enable Volte..

[Q] Google Fi - WiFi Calling

Long shot, but maybe someone else will have an idea. I know Fi uses T-Mobile for "compatible" phones, but for some reason, I can't get WiFi Calling to work properly. I have used T-Mobile MVNOs before with WiFi Calling working, but on stock it doesn't even give me the option, and custom ROMs enable but don't dial on WiFi. I tried using the OP dialer menu to force it to enable in OOS, but it is still not working. Anyone have experience with Fi on the OP6? Does WiFi Calling work for you? VoLTE works perfectly fine, but I really was hoping for WiFi Calling. Where I live, ten minutes in any direction is really rural, and LTE signal is nearly impossible to get.
I have Google FI, and a Oneplus 6, stock 9.0.6, rooted, and my WIFI calling works fine
I am rooted as well, running stock on OnePlus 6, and have had no issues either.
Does WiFi calling actually show up in the SIM card settings, and does it indicate during a call with the WiFi logo? Also, are you both using OP dialer or Google Dialer?
EDIT: I went back to completely stock, non-root to do more testing. Initially, the option for WiFi Calling showed up in the SIM settings, but the taskbar never indicated it was running WiFi Calling, and there was no WiFi symbol when calling. After activating through Google Fi app, WiFi Calling option in SIM settings disappeared, and had to use the hidden menu to bring it back. No change in functionality. Still not working. Unsure how it isn't working.
stompysan said:
Does WiFi calling actually show up in the SIM card settings, and does it indicate during a call with the WiFi logo? Also, are you both using OP dialer or Google Dialer?
EDIT: I went back to completely stock, non-root to do more testing. Initially, the option for WiFi Calling showed up in the SIM settings, but the taskbar never indicated it was running WiFi Calling, and there was no WiFi symbol when calling. After activating through Google Fi app, WiFi Calling option in SIM settings disappeared, and had to use the hidden menu to bring it back. No change in functionality. Still not working. Unsure how it isn't working.
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According to this: https://support.google.com/fi/answer/6224695
The WiFi calling now is supported in none Fi designed phones too, i enabled it but there is no option in phone settings, Fi support is not a help either, I don't know using the hidden menu actually brings it up and working or not
i have Google Fi and i have enabled the VoWifi through OneplusLogkit ( although *#800# brings factory mode / engineer mode option but both VoWifi is enabled) in Google Fi also wifi calling is enabled and in simcard settings it's enabled but still i can make wifi calls. any ideas?
not rooted android 10

WiFi calling on T Mobile

Anyone working on or have an idea on how to force enable WiFi calling on T Mobile? I doubt that we can use the OEM file from the XZ1 Compact like we could with the XZ1
Posting here just so people see it:
Have a J9210 (Global). Flashed it to US Android 9 firmware, VoWiFi and VoLTE worked on T-Mobile US (but there were no toggles).
Flashed to EE UK Android 10 firmware, no VoLTE or VoWiFi works on T-Mobile US. Still no toggles.
Update: Now that US firmware is out, I flashed it and VoLTE works--phones stays connected via LTE while on a phone call. Doesn't appear VoWiFi works--used to show on the phone app during a call that it was connected over WiFi.

TELSTRA Australia Users - I have VoWiFi all of a sudden!!??

Cant remember what exactly what I did, but I followed guides here;
https://forum.xda-developers.com/oneplus-7-pro/help/force-enable-volte-vowifi-t3934227
&
https://forum.xda-developers.com/oneplus-7-pro/how-to/guide-activate-volte-vowifi-t4116051
and
The later being the most recent. Whats even more surprising I have previously heavily de-bloated this rom using xXx No Limits to the extent VoWiFI and LTE feature aren't even available (but I understand changes carry forward as they are saved to the EFI partition)
Anyways, going to dive into to see what exact setting I enabled and will post back.
Any other Telstra users notice they have VoWiFI this morning?
Edit: Updated with PDC Setting for Telstra Volte & VoWiFi :laugh::laugh::laugh::laugh:
cantenna said:
Cant remember what exactly what I did, but I followed guides here;
https://forum.xda-developers.com/oneplus-7-pro/help/force-enable-volte-vowifi-t3934227
&
https://forum.xda-developers.com/oneplus-7-pro/how-to/guide-activate-volte-vowifi-t4116051
and
The later being the most recent. Whats even more surprising I have previously heavily de-bloated this rom using xXx No Limits to the extent VoWiFI and LTE feature aren't even available (but I understand changes carry forward as they are saved to the EFI partition)
Anyways, going to dive into to see what exact setting I enabled and will post back.
Any other Telstra users notice they have VoWiFI this morning?
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Would be interested to know. What rom and phone version do you have? GM19?
miffymiffy said:
Would be interested to know. What rom and phone version do you have? GM19?
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Yea, so I know have VOLTE as well!! Really a nice surprise this morning because reception hasn't been the best at home. Anyways,
I have a GM1910 (Chinese ver of One Plus 7 Pro 256Gb / 12GB running OOS 9.5.13 GM21AA with xXx No Limits magisk rom + Kirisakura custom kernel.
I have all installation files backed up as well as some are not hosted by the ops anymore.
What I need to figure out are the specific change I made to the IMEI with the qpst programs... I don't think I did anything to major in the end there, it was months ago and didn't yield any affect.
Any Telstra users have VOLTE and VoWiFi without having done anything!?
I'll post later today my PDC settings
miffymiffy said:
Would be interested to know. What rom and phone version do you have? GM19?
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Updated post with req. PDC setting, can someone confirm if working on their end too?
No such luck on my end. I have the same model and have tried a few versions to no avail. I have had volte pop up before, but the moment I made a call it switched back to 3G. Have you confirmed them to be working? I need vowifi, i have no reception at home. Sick of facebook calling...
miffymiffy said:
No such luck on my end. I have the same model and have tried a few versions to no avail. I have had volte pop up before, but the moment I made a call it switched back to 3G. Have you confirmed them to be working? I need vowifi, i have no reception at home. Sick of facebook calling...
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I just made an additional discovery, you also need to have "My Telstra" app installed as well just as a normal app and have run it at least once then reboot. Have you tried that?
Also, in you Sim settings you have VOLTE and WiFi calling enabled?
Volte and VoWiFi are working here, during call it he phone app will advise call is over vowifi
I'm SOL.
Got a HD1913 1+ 7T Pro.
Tried everything but cant get VoLTE or VoWIFI to work on Telstra.
Running Firmware 10.0.10.HD01AA
Have all the options enabled under Sim1 and through *#*#4636#*#* its all enabled.
Unfortunately no VoLTE sign or VoWIFI when calling. HD symbol works during calls, but thats about it.
Even have the Telstra App installed and full permissions.
UPDATE****
So i put the phone into aeroplane mode and enabled only wifi, tried to do a call and it failed, then BAMMM! VoWIFI enables itself and now I have VoWIFI enabled.
UPDATE 2****
VoLTE has enabled itself too. Looks like the trick for Telstra is to go into aeroplane mode, make a call with wifi enabled only, accept that it says called failed and it should enable VoWIFI and VoLTE.
Happy Days!!!
I'm also on Telstra (Boost mobile) and managed to get VoLTE and VoWIFI working on my OnePlus 7 (non-pro version).
I followed the guide exactly as described here: https://forum.xda-developers.com/oneplus-7-pro/how-to/guide-activate-volte-vowifi-t4116051
After I did all the steps, I rebooted and VOLTE didn't seem to work at first. But then I went into airplane mode and made a call with only Wifi enabled as kw0n2k suggested above. Then VoWIFI and VoLTE started working immediately.
When I was following the guide, the Logkit app preinstalled on my phone didn't have the VoLTE switches so I had to download the Logkit APK they recommended in the post.
For the VoLTE profile, I used "Telefonica_UK_Commercial" as mentioned in the post.

P40 Pro VoLTE or VoWiFi Issue

I am just wondering if anyone facing same issue with VoLTE or VoWiFi. It's not working for me now even the options are enabled in phone settings and it's enabled from Service provider as well. I am confuse and unclear if it's because of GMS installation etc. As it was working fine before. Then i re-installed the firmware .131 using hisuite proxy installed GMS and upgrade to 10.1.0.159. Everything is working fine even 5G but VoLTE not working. Whenever i make call it goes to 3G with poor voice quality.
What carrier are you using?
intfranknet said:
What carrier are you using?
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It already start working after one day. I don't know what was the issue. May be it take some time to register for the services as I put new SIM card. Now all carriers working fine with VoLTE and VoWiFi
Thanks

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