[Q] Google Fi - WiFi Calling - OnePlus 6 Questions & Answers

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.
Click to expand...
Click to collapse
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

Related

[Q] wifi calling not working HTC Amaze with BeastMOD v1.0.1

Firstly, I would like to thank xboarder56 for releasing THE beast.
While everything seems to work great/fast/awesome, I am still NOT able to get the Wifi calling to work on my T-Mobile HTC Amaze 4G
I have confirmed that I have the latest GBA SIM card with the ID TM9177.
But .. here is what I am experiencing ...
I installed the BeastMOD from SD card after I completed the data wipe. I had Wi-Fi and Wi-Fi Calling enabled and active. But as soon as I turn the Wifi calling, my phone disconnects from the carrier and when I try to call - the blue Wifi calling icon turns green and back to blue. So I restarted my Amaze. When it booted back up, I had the red Wi-Fi Calling icon in the notification bar. when I opened the notification, it said I had an invalid SIM card. I activated the new SIM that came with the Amaze BOX when I first got it, so I disabled Wi-Fi Calling in the Wireless Settings. The red icon would not go away, so I disabled Wi-Fi. Wi-Fi disabled correctly, but the red icon remained, and my mobile network never reconnected. I had to reboot the phone again to get my mobile connection back.
What I am doing wrong?
Please help!!!
Resolved !!
Called up T-Mobile Tech Support and asked them to update my e911 address for the account.
Rebooted my Amaze - all set with Wifi Calling.
Update
Also, make sure under Settings > Location, the "Use Wireless Address" is NOT checked.
The Wifi-calling app tries to match the 911 address with the address it finds using wireless network - if that doesnt match or if its not a known address, the wifi calling gives an error - REG99: Unable to connect
The new Wifi Calling OTA update might fix all these dependencies.
But at least Wifi calling works great with BeastMOD

Can't activate wifi calling on rooted phone?

I have a google Pixel on Android 7.1.2 on Verizon. I've had wifi calling activated the whole time that I've had the Pixel, on various cell providers, until yesterday. Decided to root my phone to be able to use "Radio Control", an app that will put the phone into Airplane mode when connected to wifi. Did that yesterday, and since then I've not been able to activate wifi calling. My phone is stock other than being rooted...I tried the Radio Control app, and it worked as it should. I've just removed it again, until I can get wifi calling activated. Oh, by the way, rooted by unlocking the bootloader, putting TWRP recovery on the phone, and then installing SuperSu via TWRP.
I've tried:
-Flushing app caches in "Storage", and flushing the phone app cache.
-Having "My Verizon" app on the phone.
-Resetting network settings.
-Activating with and without being in Airplane mode, always with wifi connected, though.
-Removing and restoring "Advanced Calling" setting.
The only thing I haven't tried is that one with the live chicken, a pentagram, and incense. That's my next thing to try.
Any suggestions? I'm really amazed that I can't activate wifi, since Verizon suggests this to stabilize wifi calling for their customers. I guess that they've never actually tried it themselves. Does anyone have wifi calling activated on a rooted Pixel? Do you remember doing anything in particular to get wifi activated, other than trying repeatedly to turn it on in the phone's settings?
By the way, the reason that wifi calling doesn't seem to work well on Verizon isn't wifi calling functionality, wifi calling itself works fine. It's because Verizon only allows the setting "Cellular preferred" for wifi calling. You cannot set "Wifi preferred" for wifi calling. This means that the cell radio is busy nearly all the time in a low cell signal area (like my house), working to make the cell signal usable. I noticed that there was much less battery drain while I was testing "Radio Control" since the phone was in Airplane mode, but I didn't have wifi calling activated at that point. Wifi was connected (of course), but wifi calling was not activated.
I hope that this is all clear, and that someone out there might remember something helpful for me. Or at least be able to tell me that wifi calling can or can't be activated on a rooted phone. If I can't root and get wifi calling activated, I'm going to sell the Pixel, as it doesn't meet my needs. I also have an iPhone that works perfectly with wifi calling on Verizon, but I'd much rather be using the Pixel.
Thanks!
I'm on Verizon and had that happen and found it was because of the theme i was using. Just had to reapply the theme to settings and all fixed. Also, I just checked the settings and you can set it to WiFi preferred.
Droid1019 said:
I'm on Verizon and had that happen and found it was because of the theme i was using. Just had to reapply the theme to settings and all fixed. Also, I just checked the settings and you can set it to WiFi preferred.
Click to expand...
Click to collapse
Sounds good, just a couple of questions. First, which theme? Where do you access the particular theme in settings that you're referring to? The only theme that I've changed from default is the keyboard theme.
The other question is how can you change the wifi calling setting to WiFi preferred? Do you click on the wifi calling setting that has "Cellular preferred", and a menu comes up that includes "WiFi preferred"? I don't get that menu when I click on that setting, all I get is a setting for "roaming", and for 911 address, nothing else.
Also, which Android build are you on? I'm on Android 7.1.2, build NHG47K. Are you on that build? Or maybe N2G47E? I was wondering about that.
I'm on the 7.1.2 K build with a downloaded theme-not in settings. I think you have to set up the emergency address for wifi calling to work. And yes it's roaming preferences where you can change to WiFi preferred.
Just did a factory reset to try removing root and then activating wifi calling unrooted. Then add root again and see if wifi calling sticks or goes away....
So I'm currently unrooted and am not able to activate wifi calling. Sounds like time for a call to Verizon...Should be able to activate wifi calling with stock ROM. Have done this one before *smile*.
Things are not going well...looks like the Pixel may be heading out the door, too much time spent for no results.
RogerSC said:
Just did a factory reset to try removing root and then activating wifi calling unrooted. Then add root again and see if wifi calling sticks or goes away....
So I'm currently unrooted and am not able to activate wifi calling. Sounds like time for a call to Verizon...Should be able to activate wifi calling with stock ROM. Have done this one before *smile*.
Things are not going well...looks like the Pixel may be heading out the door, too much time spent for no results.
Click to expand...
Click to collapse
Did you update emergency address? That's has to be set up for wifi calling to work. https://www.verizonwireless.com/support/knowledge-base-208085/
Any other tips to get wifi calling enable? Whenever I click enable, it just goes to a generic error message and then nothing. So I can't even get to the screen to enter an emergency address. I have a ticket open with Verizon, but since I have an unlocked bootloader, I don't want to do a warranty exchange.
The rest of the story, used iPhone 6S Plus for a couple of months so that I could use wifi calling at home, and sold the Pixel. I did get very tired of the iPhone, even though wifi calling works perfectly on the iPhone on Verizon. So I got the new Verizon 4G/LTE Network Extender so I wouldn't need wifi calling here at home. That's allowed me to get another Pixel phone and use it at home without relying on wifi calling, now have 4/5 bars of cellular signal strength throughout my house. The Network Extender is a really nice piece of hardware, a great upgrade for the old 3G model that had no way to tell what was going on. The new 4G/LTE model has a web admin GUI page that has all kinds of useful status information on it. As well as a one-line display that shows each step in the startup sequence as it comes up.
The new Pixel works just as the old one with wifi calling on Verizon. "Cellular preferred" is the only setting available for wifi calling. Which means that if there's a low cell signal it will generally be used in preference to a strong wifi signal. Don't know why Verizon insists on this setting, I guess that they really don't want to support reliable wifi calling on the Pixel. I've thought about rooting my phone again to see if can get wifi calling working reliably, but now that the Pixel is able to use wifi calling and I don't need wifi calling at home, I'm inclined to leave it alone. In other words, getting wifi calling working perfectly isn't a good enough reason for me to root my phone *smile*. I can root it in the future if I have a good enough reason.
So the bottom line is that I'm pretty happy with the Pixel now, works as I need it to...just tried the Android O Beta, and liked what I saw there. Really glad that I'm back on Android.
Update: found an article here about how to change calling setting to "Wi-Fi preferred" for Pixel on Verizon...tried it and worked for me:
https://forum.xda-developers.com/pixel-xl/how-to/verizon-want-wifi-preferred-wifi-calling-t3622700

Project Fi: Tricks for visual voicemail AND wifi calling, Daydream

I've stumbled onto a couple of tricks using the OP6 on ProjectFi in the US and thought I'd share in case it helps anyone, or anyone smarter than me can take these "clues" and figure out a better solution.
I'm starting with the sim card I used to use in my Nexus 5x so the card is fully activated.
Visual Voicemail & Daydream
1. Install and run the ProjectFi app - It won't fully activate your service. It says "account access only"
2. Root your phone with magisk and download/enable the module "Daydream Enabler 2.5" - I guess this sort of "pixelizes" your phone. (I'm a mechanical engineer, not a dev, in case you can't tell.) I did this to get daydream working (it works) but I noticed it allowed me to also fully activate the Project Fi app (the app thinks it's a Pixel device) and visual voicemail started working! You can't leave your module enabled because it kills your video recorder, but visual voicemail persists! You just have to enable the module when you want to use Daydream. (Note - don't use a dark theme with visual voicemail, the text stays black so you see there is a voicemail but it's all black, you can't see the text.)
WiFi Switching
If you were paying attention you would have noticed wifi switching worked before you installed the project fi app. Now it's gone. To re-enable dial *#800# to open Log_Test. Tap enter to disregard the warning, then tap on OnePlusLogKit. Scroll down to function switch and tap it, then tick the box to enable VoWifi switch.
Then go into settings -> Wifi & Internet -> Sim & Network -> Sim 1 and make sure both the VoLTE and VoWifi switches are turned on.
Voila. You now have a OnePlus 6 on Project Fi with working visual voicemail and wifi switching, and daydream when you want it.
BikerFry said:
I've stumbled onto a couple of tricks using the OP6 on ProjectFi in the US and thought I'd share in case it helps anyone, or anyone smarter than me can take these "clues" and figure out a better solution.
I'm starting with the sim card I used to use in my Nexus 5x so the card is fully activated.
Visual Voicemail & Daydream
1. Install and run the ProjectFi app - It won't fully activate your service. It says "account access only"
2. Root your phone with magisk and download/enable the module "Daydream Enabler 2.5" - I guess this sort of "pixelizes" your phone. (I'm a mechanical engineer, not a dev, in case you can't tell.) I did this to get daydream working (it works) but I noticed it allowed me to also fully activate the Project Fi app (the app thinks it's a Pixel device) and visual voicemail started working! You can't leave your module enabled because it kills your video recorder, but visual voicemail persists! You just have to enable the module when you want to use Daydream. (Note - don't use a dark theme with visual voicemail, the text stays black so you see there is a voicemail but it's all black, you can't see the text.)
WiFi Switching
I knew the OP6 wouldn't switch to Sprint but I didn't realize when I bought the phone that the seamless wifi switching I enjoyed wouldn't work either. (I don't get a T-Mobile signal in my office so this is pretty important.) So even on wifi I don't get calls on my phone. I'll see them come though the hangouts website and chrome browser extension but not my phone.
UNLESS you wipe your phone and do not ever install the project fi app. Then wifi calling is an option in your sim settings and it works great! Unfortunately you can't enable visual voicemail as per above. Even if you uninstall the ProjectFi app, the damage is done. Once you install the ProjectFi app, the sim setting for WiFi calling is gone forever, even without fully activating the app with the Magisk module.
I'm leaving WiFi switching enabled because visual voicemail still comes through as a message in hangouts so it's a little kloogey but good enough.
Click to expand...
Click to collapse
Thanks a lot for the info.
....
BikerFry said:
I've stumbled onto a couple of tricks using the OP6 on ProjectFi in the US and thought I'd share in case it helps anyone, or anyone smarter than me can take these "clues" and figure out a better solution.
I'm starting with the sim card I used to use in my Nexus 5x so the card is fully activated.
Visual Voicemail & Daydream
1. Install and run the ProjectFi app - It won't fully activate your service. It says "account access only"
2. Root your phone with magisk and download/enable the module "Daydream Enabler 2.5" - I guess this sort of "pixelizes" your phone. (I'm a mechanical engineer, not a dev, in case you can't tell.) I did this to get daydream working (it works) but I noticed it allowed me to also fully activate the Project Fi app (the app thinks it's a Pixel device) and visual voicemail started working! You can't leave your module enabled because it kills your video recorder, but visual voicemail persists! You just have to enable the module when you want to use Daydream. (Note - don't use a dark theme with visual voicemail, the text stays black so you see there is a voicemail but it's all black, you can't see the text.)
WiFi Switching
I knew the OP6 wouldn't switch to Sprint but I didn't realize when I bought the phone that the seamless wifi switching I enjoyed wouldn't work either. (I don't get a T-Mobile signal in my office so this is pretty important.) So even on wifi I don't get calls on my phone. I'll see them come though the hangouts website and chrome browser extension but not my phone.
UNLESS you wipe your phone and do not ever install the project fi app. Then wifi calling is an option in your sim settings and it works great! Unfortunately you can't enable visual voicemail as per above. Even if you uninstall the ProjectFi app, the damage is done. Once you install the ProjectFi app, the sim setting for WiFi calling is gone forever, even without fully activating the app with the Magisk module.
I'm leaving WiFi switching enabled because visual voicemail still comes through as a message in hangouts so it's a little kloogey but good enough.
Click to expand...
Click to collapse
Just curious, have you tried enabling the VoWIFI switch via the *#800# menu after you've enabled Visual Voicemail to get the switch back?
inneyeseakay said:
Just curious, have you tried enabling the VoWIFI switch via the *#800# menu after you've enabled Visual Voicemail to get the switch back?
Click to expand...
Click to collapse
I tried it and... It worked like a charm!
So I now have a OnePlus 6 on Project Fi with working visual voicemail and wifi switching. No Sprint or US Cellular but otherwise works the same as an officially supported phone as far as I can tell.
I'm curious how do you test or verify WiFi switching is working for calls on a OnePlus?
I just tried the WiFi toggle on my unlocked 6T and VoWifi did not work. The icon still says VoLTE. I have a real t-mobile sim and it switches to VoWifi at the top when it is connecting over Wifi. It also shows the carrier name as T-Mobile Wifi Calling. The way I tested is to put the phone into airplane mode and turn on wifi. With the tmobile sim i can make a call, with the google fi sim i cannot.

Disable Wi-Fi Calling

I purchased a Global version 1+7P (GM1917) directly from OnePlus. Then I signed up for T-Mobile service.
I am having problems with calls coming in over Wi-Fi. However, in Settings under Wi-Fi & internet, there is no Wi-Fi calling entry, so I cannot find how to turn off Wi-Fi calling.
Is there another method for turning it off? A package I can disable? (I have root.)
jdhedden said:
I purchased a Global version 1+7P (GM1917) directly from OnePlus. Then I signed up for T-Mobile service.
I am having problems with calls coming in over Wi-Fi. However, in Settings under Wi-Fi & internet, there is not Wi-Fi calling entry, so I cannot find how to turn off Wi-Fi calling.
Is there another method for turning it off? A package I can disable? (I have root.)
Click to expand...
Click to collapse
I don't have the phone yet but look under mobile network or search in settings. On stock Android pie it's under the mobile network advanced settings
HewettBR said:
I don't have the phone yet but look under mobile network or search in settings. On stock Android pie it's under the mobile network advanced settings
Click to expand...
Click to collapse
Under Settings -> Wi-Fi & internet -> SIM & network, there is Preferred network type, but that only set 2G/3G/4G. Nothing about Wi-Fi calling. I couldn't find anything called 'Mobile network'.
jdhedden said:
Under Settings -> Wi-Fi & internet -> SIM & network, there is Preferred network type, but that only set 2G/3G/4G. Nothing about Wi-Fi calling. I couldn't find anything called 'Mobile network'.
Click to expand...
Click to collapse
either install the new onepluslogkit app and *#800# into oneplus logkit/function switch/volte+vowifi switches on
This option will allow you to turn on/off as above. but in sim settings/ Sim1/Enhanced Communications
Or *#*#4636#*#* and turn off provisioning for volte/vowifi.
jdhedden said:
I purchased a Global version 1+7P (GM1917) directly from OnePlus. Then I signed up for T-Mobile service.
I am having problems with calls coming in over Wi-Fi. However, in Settings under Wi-Fi & internet, there is not Wi-Fi calling entry, so I cannot find how to turn off Wi-Fi calling.
Is there another method for turning it off? A package I can disable? (I have root.)
Click to expand...
Click to collapse
Phone app - three dots, top right - settings - at the bottom, SIM & network - SIM 1 - WI-FI Calling.
HewettBR said:
I don't have the phone yet but look under mobile network or search in settings. On stock Android pie it's under the mobile network advanced settings
Click to expand...
Click to collapse
miffymiffy said:
either install the new onepluslogkit app and *#800# into oneplus logkit/function switch/volte+vowifi switches on
This option will allow you to turn on/off as above. but in sim settings/ Sim1/Enhanced Communications
Or *#*#4636#*#* and turn off provisioning for volte/vowifi.
Click to expand...
Click to collapse
Tried the OnePlusLogKit, but the *#800# didn't bring up anything.
Tried *#*#4636#*#*, but when I toggled 'WiFi Calling Provisioned', it would "stick" - the Update button produced an error, and it reset on reboot.
bp328i said:
Phone app - three dots, top right - settings - at the bottom, SIM & network - SIM 1 - WI-FI Calling.
Click to expand...
Click to collapse
That did it! I didn't realize there were more settings under SIM 1. The Wi-Fi Calling under it doesn't show up on searching in Settings. Thanks.
I hope one day wifi calling works with Verizon. The settings are greyed out
jdhedden said:
I purchased a Global version 1+7P (GM1917) directly from OnePlus. Then I signed up for T-Mobile service.
I am having problems with calls coming in over Wi-Fi. However, in Settings under Wi-Fi & internet, there is no Wi-Fi calling entry, so I cannot find how to turn off Wi-Fi calling.
Is there another method for turning it off? A package I can disable? (I have root.)
Click to expand...
Click to collapse
What kind of problems are you having with calls over wifi? I plan to use the 7pro on tmobile so I'm just curious
Genetic517 said:
What kind of problems are you having with calls over wifi? I plan to use the 7pro on tmobile so I'm just curious
Click to expand...
Click to collapse
This may all be my misconstruing the problem. After turning off wifi call, I tried calling my wife (which was where I notice the problem), and we still couldn't hear each other. Yet when I call voicemail, I can hear it and I can change my announcement which shows that the phone does work both ways. Therefore, now I'm thinking that wifi calling was not the issue, and the fault is somewhere with t-mobile. The mystery continues.
The mystery deepens. Using Google Hangouts Dialer (which goes over wifi), calling my wife fails (nothing heard either way), but calling voicemail, again, works just fine. I just don't get it.
[Deleted]
Thanks for this thread. I knew I saw that somewhere but forgot to check the SIM menu.
Why isn't it in settings search when even dev options are?
Why does TMO lie and way it is in the same spot as most phones, in their article specifically about the OP7p?
My issue in on a WiFi call, sometimes I can't hear them (but they can hear me), sometime from the call start other times mid-call, and turning off WiFi fixes it. I have 1000mb fiber and no other network issues. Too bad it doesn't work. Thanks for helping me disable it.

Question Wifi-Calling?

Greetings everyone!
Just got my Pixel 6a, love it so far, but i have one problem: Wifi Call doesnt work.
Whenever i try do a wifi call, i just get the message "out of network call"
Im using a german sim card from o2 (telefonica) and the thing is: my prior phone
was a redmi note 10 5g and with this phone (same sim card) wifi calling just worked like a charm.
so my question is: is there any trick to make it work? any explanation why it doesnt work with the 6a?
its a real bummer to go from a cheap a... redmi where this function just works fine to a nice and not so cheap pixel
(love google phones by the way, its my 3rd one), just to realize that something doesnt work as excpected.
i also tried a different os (calyx os), still no wifi-call.
help?
realCyphox said:
Greetings everyone!
Just got my Pixel 6a, love it so far, but i have one problem: Wifi Call doesnt work.
Whenever i try do a wifi call, i just get the message "out of network call"
Im using a german sim card from o2 (telefonica) and the thing is: my prior phone
was a redmi note 10 5g and with this phone (same sim card) wifi calling just worked like a charm.
so my question is: is there any trick to make it work? any explanation why it doesnt work with the 6a?
its a real bummer to go from a cheap a... redmi where this function just works fine to a nice and not so cheap pixel
(love google phones by the way, its my 3rd one), just to realize that something doesnt work as excpected.
i also tried a different os (calyx os), still no wifi-call.
help?
Click to expand...
Click to collapse
I'm using the Pixel 6a in Germany with o2 too - I've no issues with VoWifi and VoLTE. Are you shure you've enabled WLAN call in the accordant settings?
I use Google Voice...there an easier way w/o picking up an additional phone #?
On AT&T in the US...which is prolly why...lol
accuphase said:
I'm using the Pixel 6a in Germany with o2 too - I've no issues with VoWifi and VoLTE. Are you shure you've enabled WLAN call in the accordant settings?
Click to expand...
Click to collapse
i wrote that i used wifi calling with the redmi just fine, so i guess i know how to set it up, yes. so far i tried two o2 cards, no luck. question is, can you (you) really do phone calls by wifi or are you just using cellular without actually knowing. can you still do phone calls when airplane mode is on but wifi is enabled? do you see the wifi-icon onscreen (below number/name you're calling) when making a call?
realCyphox said:
i wrote that i used wifi calling with the redmi just fine, so i guess i know how to set it up, yes. so far i tried two o2 cards, no luck. question is, can you (you) really do phone calls by wifi or are you just using cellular without actually knowing. can you still do phone calls when airplane mode is on but wifi is enabled? do you see the wifi-icon onscreen (below number/name you're calling) when making a call?
Click to expand...
Click to collapse
can you really do phone calls by wifi ? Yes
can you still do phone calls when airplane mode is on but wifi is enabled? Yes
do you see the wifi-icon onscreen (below number/name you're calling) when making a call? Yes
realCyphox said:
i wrote that i used wifi calling with the redmi just fine, so i guess i know how to set it up, yes. so far i tried two o2 cards, no luck. question is, can you (you) really do phone calls by wifi or are you just using cellular without actually knowing. can you still do phone calls when airplane mode is on but wifi is enabled? do you see the wifi-icon onscreen (below number/name you're calling) when making a call?
Click to expand...
Click to collapse
Hi,
I'm having similar issues with my Pixel 6a, also in Germany. I use it with two SIM cards (o2/Telefonica physical SIM card and Vodafone eSIM). I have enabled Wifi Calling in the SIM card settings for both SIM Cards, but _most_ of the time, it doesn't work. The phone tries to use placing calls over cellular (my home office is in my basement, so cellular reception is pretty bad to non-existent, especially with Vodafone)
Most of the times, because sometimes it does work, then it shows up in the status bar and the wifi symbol is shown when placing a call. I couldn't yet figure out any correlation to when or why it works or doesn't, I have tried restarting the phone, putting it to airplane mode, deactivating and re-activating Wifi-calling - or just using one SIM card.
I'd say ~90% of the time it doesn't work.
btw I have used a Pixel 4a with the exact same setup / SIM cards before and didn't experience any issue whatsoever.
Do you have any workaround in the meantime?
Not sure if this helps any, but when entering *#*#4636#*#* on dialpad, going into 'Phone Information'
Is WIFI Calling Provisioned enabled like in my attachment?
Worth looking into:
How to Enable the Preferred WiFi Calling Option on the Verizon Pixel & Pixel XL
A tutorial on how to enable the Wifi Preferred mode in the WiFi Calling settings on the Verizon Google Pixel and Google Pixel XL.
www.xda-developers.com
andybones said:
Not sure if this helps any, but when entering *#*#4636#*#* on dialpad, going into 'Phone Information'
Is WIFI Calling Provisioned enabled like in my attachment?
Worth looking into:
How to Enable the Preferred WiFi Calling Option on the Verizon Pixel & Pixel XL
A tutorial on how to enable the Wifi Preferred mode in the WiFi Calling settings on the Verizon Google Pixel and Google Pixel XL.
www.xda-developers.com
Click to expand...
Click to collapse
Thanks for your answer. It is enabled for both sim cards indeed, though (WLAN-Anrufe eingerichtet is the option in German).
koenichlich said:
Thanks for your answer. It is enabled for both sim cards indeed, though (WLAN-Anrufe eingerichtet is the option in German).
Click to expand...
Click to collapse
Very welcome.
I'm sorry, I wish I was able to help with this!
I have found the error - it's actually caused by Blokada. I'm not sure whether it's just after some update of Blokada (I have used Blokada v5 for quite some time and regularly update) or the combination of Pixel 6a with Blokada, though. But Wifi calling always does work, when I disable Blokada.
Than I found this thread and have subsequently added com.android.phone and com.android.providers.telephony as bypass nad it does seem to work until now. Somebody else suggested bypass of Carrier provisioning service, I haven't tested yet, since as said it does seem to work now.
Just wanted to share my findings, if somebody else stumbles upon this thread.

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