Question VoLTE - Vivo X70 Pro+

Has anyone figured out how to force VoLTE on Origin OS Ocean when the phone isn't on the 'supported' list of your carrier? If it is supported then as soon as you pop in their SIM card the option to enable VoLTE appears, but otherwise it just isn't there. With 3g networks shutting down in North America this creates a real problem, because even though I have 5g enabled, and usually pick up a 4g or 5g signal where I live, without VoLTE enabled all calls connect on 3g.

It's a real bummer. But whatever is under the settings, VoLTE is not actually activated. And Vivo is to blame. That's obvious from the service menu.

piskr said:
It's a real bummer. But whatever is under the settings, VoLTE is not actually activated. And Vivo is to blame. That's obvious from the service menu.
Click to expand...
Click to collapse
In Italy after 2/3 days Volte is automatically activated (operator Vodafone). Didn't touch any settings.

maxant69 said:
In Italy after 2/3 days Volte is automatically activated (operator Vodafone). Didn't touch any settings.
Click to expand...
Click to collapse
The VoLTE issue lies with Vivo, not with your carrier. When you put a carrier SIM into your phone it contains unique information that tells the phone who your carrier is and the phone then configures the APN settings automatically. You cannot edit them. In Origin OS Ocean you can open System/etc/apn-config.xml and you will see a list of every carrier in the world and read what default APN settings the operating system automatically configures the APN for that carrier to be.
I have the Vivo X Note with the same Origin OS Ocean firmware as the X70pro. My Canadian carrier supports VoLTE and WiFi calling and their tech support manually added the IMEI of my phone to the equipment list for my line and assured me that VoLTE and WiFi calling are provisioned for the line, but neither of those toggles appear in my Mobile Networks/Sim settings, because the APN that Vivo applies for my carrier doesn't support VoLTE. If I put the same SIM into my Samsung Note 20 Ultra 5g or my Huawei Mate 20 X and look at the APN settings, they permit VoLTE and the toggle and feature works on those phones - so it is not the carrier, or the SIM - it is Vivo and their default APN settings for your carrier.
I have a strong 5g signal here, and I can download and stream or do VoIP calls at 5g, but when I place a voice call it drops to 3g or H. That isn't an issue here in Canada, because we have kept our 3g voice network up and running. When I travel to the US, however, I can't place calls because without VoLTE enabled voice calls drop to 3g - which no longer exists in the United States. Someone needs to convince Vivo to change the apn-config.xml file to reflect APNs for North American carriers to ensure VoLTE is possible. I would just edit the .xml file myself, but you can't save changes to an .xml file without root, and we can't root because Vivo won't unlock the bootloader for Origin OS Ocean devices.

frcraig said:
The VoLTE issue lies with Vivo, not with your carrier. When you put a carrier SIM into your phone it contains unique information that tells the phone who your carrier is and the phone then configures the APN settings automatically. You cannot edit them. In Origin OS Ocean you can open System/etc/apn-config.xml and you will see a list of every carrier in the world and read what default APN settings the operating system automatically configures the APN for that carrier to be.
I have the Vivo X Note with the same Origin OS Ocean firmware as the X70pro. My Canadian carrier supports VoLTE and WiFi calling and their tech support manually added the IMEI of my phone to the equipment list for my line and assured me that VoLTE and WiFi calling are provisioned for the line, but neither of those toggles appear in my Mobile Networks/Sim settings, because the APN that Vivo applies for my carrier doesn't support VoLTE. If I put the same SIM into my Samsung Note 20 Ultra 5g or my Huawei Mate 20 X and look at the APN settings, they permit VoLTE and the toggle and feature works on those phones - so it is not the carrier, or the SIM - it is Vivo and their default APN settings for your carrier.
I have a strong 5g signal here, and I can download and stream or do VoIP calls at 5g, but when I place a voice call it drops to 3g or H. That isn't an issue here in Canada, because we have kept our 3g voice network up and running. When I travel to the US, however, I can't place calls because without VoLTE enabled voice calls drop to 3g - which no longer exists in the United States. Someone needs to convince Vivo to change the apn-config.xml file to reflect APNs for North American carriers to ensure VoLTE is possible. I would just edit the .xml file myself, but you can't save changes to an .xml file without root, and we can't root because Vivo won't unlock the bootloader for Origin OS Ocean devices.
Click to expand...
Click to collapse
I don't think it's a Vivo problem. Carriers should give you access. As said before after 2 days I have Volte and HD icon even if device is not ufficial supported. I didn't change or touch anything. If your carrier uses a restricted policy on 5G or Volte there is nothing you can do.

maxant69 said:
I don't think it's a Vivo problem. Carriers should give you access. As said before after 2 days I have Volte and HD icon even if device is not ufficial supported. I didn't change or touch anything. If your carrier uses a restricted policy on 5G or Volte there is nothing you can do.
Click to expand...
Click to collapse
My experience with VoLTE is kinda weird, settings show me that I have both VoLTE and VoWiFi enabled. But none of them really work. It's true that obviously system recognize that, send me a notice that I could have VoLTE enabled and routes me to the message to my provider. And even more thrilled - I can toggle VoLTE in settings, get the HD voice sign in notification bar, but I don't have any VoLTE. The only direct consequence of the toggle is that I lose the caller's name in the phone, every caller becomes the unknown number. But my provider is not trustworthy, the other users have issues with VoLTE, I frankly don't know anyone who has it enabled. Thus, I tried my wife's sim and didn't get even option to enable VoLTE. My wife has a Chinese (Honor) phone and both VoLTE and VoWiFi work with this phone flawlessly. That's why I assume that the problem is on Vivo's side.

Related

Someone has managed to enable the VoLTE in Italy (specifically with TIM)?

Hi, I recently purchased a Nokia 8 on Amazon (Italy, unlocked, TA-1004 EU6) and I am on the latest build (00WW_4_390). My carrier is TIM.
In the network settings I don't have the enhanced LTE toggle for HD Audio on call. Like someone else, if I search it in the settings, it appears among the results, but refers to the menu without its voice. In the hidden menu (*#*#4636#*#*) provisioning VoLTE is enabled and both data and voice are indicated on the LTE network.
Among the options of my SIM I have enabled the service "TIM Voce 4G" (aka "TIM Voice 4G"). So on my line the VoLTE is enabled and the Nokia 8 fully supports it.
I know that the carrier must also support the specific device, so I ask: someone in Italy managed to activate it? If yes with TIM or other carriers?
I did the initial setup of my Nokia 8 without the SIM for the issue of the alleged block of updates from the carriers (I don't think that things are like that and I explained why in the appropriate topic) and I wouldn't want this to affect the correct configuration of some carrier services.
Hello everyone.
As you know from the post above, I have a problem with enabling VoLTE on my Nokia 8.
Until a few days ago I found myself with a smartphone with full support hardware and software at VoLTE and with the relevant option active on my SIM, but my carrier (TIM) hadn't enabled the Nokia 8 to use this technology on its own network.
Now TIM has enabled the Nokia 3, 5 and 8 at VoLTE, but the option to activate HD calls continues to be inaccessible.
I also tried to subscribe to the beta program, but the situation is the same with both Android 8.0 and Android 8.1 (january security patches on both).
TIM has also reset the network, but they say they have no problem. On my Nokia I also reset the network options, as well as move the sim on the second slot, without success.
Are you aware of any way to force the display of that item? Once I remember that on Nexus 6P it was enough to disable VoLTE provisioning and disconnect from the network, or something similar.
Thank you all and sorry for the double post.

Unlocked variant on t-mobile

I have an Unlocked variant which I purchased directly from Samsung.
I don't happen to see VOLTE settings in my mobile networks setting.
Is this normal? I have seen another user post a screenshot from his/her phone which shows VoLTE setting (Telcel network) which can be turned off or on,but my phone doesnt have that.
I am on Tmobile.
tmobile phones have never displayed any VoLTE icons or notifications. Its carrier dependant on if they show it or not.
Unlocked US S10s has every Tmobile feature except Multiline Digits and probably their crappy RCS service
It's also missing the Tmo Video calling.
i have t mobile and always buy samsung international phones. volte, wifi calling,
video calling, and download booster usually dont work until i change the csc to tmo. i would think the ability to do so will be coming once the phone is rooted and out for a while.
Faizan S said:
I don't happen to see VOLTE settings in my mobile networks setting.
Is this normal? I have seen another user post a screenshot from his/her phone which shows VoLTE setting (Telcel network) which can be turned off or on,but my phone doesnt have that.
I am on Tmobile.
Click to expand...
Click to collapse
1. Normal. The icon is disabled, but the feature isn't.
2. Yes. Testing VoLTE is as simple as placing a call. Phones w/o VoLTE will drop to 3G/2G OR fail if LTE is the only signal avail.
3. VoLTE toggle is missing. I sent feedback to Samsung about this some time ago.

WiFi calling?

Hi, I was wondering if WiFi calling is something that I can enable or do I have to get in touch with Motorola or my network provider (3 three UK)? I used to have it on my older phone (honor play) without having to change settings. It's the same network and same SIM.
Any help is appreciated
Thanks
You can turn it on in the expand settings of mobilnetwork.
minidiegi said:
You can turn it on in the expand settings of mobilnetwork.
Click to expand...
Click to collapse
I dont have that option
EE only
I have found out that it is only available on EE (UK) even though I had it on my old honor play,
must be an exclusivity with them or something,
kinda sucks but nothing I can do
Hello,
I have also Moto G7 plus and Vodafone CZ. Vodafone CZ supports WiFi calling but for the phones with their firmware. Since they have never sold this phone I can't get their firmware (because it doesn't exist) to activate WiFi calling. Is there any workaround on how to do it, please?
Thank you!
You can try:
Dial *# *#4636# *# * -- >Phone Information --> switch on 'WiFi Calling Provisioning'
This will more likely be greyed out if your carrier doesnt specifically offer/support the device your on. My carrier (Bell Canada) supports wifi calling, however ONLY on devices they sell, not brought into their network. So for me I can't enable it as they only support the G7 Play, not the plus. I called my carrier support and there was nothing they could do to force provisioning on there end, but may vary carrier to carrier. Its a pretty rediculous exclusivity thing, gives them a way to try and force your hand into buying a carrier specific device.
I have got the same when I dial *# *#4636# *# *. I can' turn it on Carrier said they can't help me.
Edit: for some reason I can't insert an image.

Question Any way to enable VoLTE and/or wifi calling for US carriers

Is there any way to enable VoLTE or wifi calling for US carriers. Maybe by rooting or adb commands? I'm using the x70 pro plus on tmobile and it's only showing H when making phone calls and I don't see any option to enable VoLTE or wifi calling.
Rapid bunny said:
Is there any way to enable VoLTE or wifi calling for US carriers. Maybe by rooting or adb commands? I'm using the x70 pro plus on tmobile and it's only showing H when making phone calls and I don't see any option to enable VoLTE or wifi calling.
Click to expand...
Click to collapse
Im using wifi calling, the option is under Mobile Network, SIM 1
DJorgio said:
Im using wifi calling, the option is under Mobile Network, SIM 1
Click to expand...
Click to collapse
I'm using the Chinese 512 gb version, I don't see that option. What version of the x70 pro plus do you have?
Rapid bunny said:
I'm using the Chinese 512 gb version, I don't see that option. What version of the x70 pro plus do you have?
Click to expand...
Click to collapse
That's the same version I have too, dual SIM - In Australia (perhaps it only shows what the SIM is capable of)?
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DJorgio said:
That's the same version I have too, dual SIM - In Australia (perhaps it only shows what the SIM is capable of)?
View attachment 5526861
Click to expand...
Click to collapse
If I reset my network settings the HD icon is shown in the status bar showing that VoLTE is enable but there is no toggle for the VoLTE in my settings.
Restarting my phone gets rid of the HD icon meaning the VoLTE is no longer enabled
Rapid bunny said:
If I reset my network settings the HD icon is shown in the status bar showing that VoLTE is enable but there is no toggle for the VoLTE in my settings.
Restarting my phone gets rid of the HD icon meaning the VoLTE is no longer enabled
Click to expand...
Click to collapse
Yes, and if you toggle VoLTE setting, you get the icon back. But this is not a useful discovery. The fact is that with or without the icon, I never really have VoLTE. But the answer may be in provider, my phone is not listed as enabled. With iPhone, which is listed, and the same provider VoLTE is active. I'll be travelling this month, have two different sims and see what happened.
piskr said:
Yes, and if you toggle VoLTE setting, you get the icon back. But this is not a useful discovery. The fact is that with or without the icon, I never really have VoLTE. But the answer may be in provider, my phone is not listed as enabled. With iPhone, which is listed, and the same provider VoLTE is active. I'll be travelling this month, have two different sims and see what happened.
Click to expand...
Click to collapse
There is no VoLTE toggle in my settings. The HD icon just indicates if my phone is connected to the VoLTE service.
Reseting my network settings enables the VoLTE on my phone but it is disabled when I restart my phone and only shows H when I make calls until I reset my network settings.
DJorgio said:
That's the same version I have too, dual SIM - In Australia (perhaps it only shows what the SIM is capable of)?
View attachment 5526861
Click to expand...
Click to collapse
Does your settings have a VoLTE toggle?
Rapid bunny said:
If I reset my network settings the HD icon is shown in the status bar showing that VoLTE is enable but there is no toggle for the VoLTE in my settings.
Restarting my phone gets rid of the HD icon meaning the VoLTE is no longer enabled
Click to expand...
Click to collapse
But your provider supports VoLTE and you do have a Chinese x70 pro+? What about VoWIFI, I can see that you have it enabled, does it work?
Try to update phone app if it is possible or clear cash and data of it. I have this menu but so far VoLTE doesn't really work.
And one more question. Why would you need VoLTE if you have VoWIFI enabled?
piskr said:
But your provider supports VoLTE and you do have a Chinese x70 pro+? What about VoWIFI, I can see that you have it enabled, does it work?
Try to update phone app if it is possible or clear cash and data of it. I have this menu but so far VoLTE doesn't really work.
And one more question. Why would you need VoLTE if you have VoWIFI enabled?
Click to expand...
Click to collapse
My carrier tmobile support VoLTE. I attached a screenshot of what my sim settings look like. I don't have a toggle for VoLTE or VoWIFI but VoLTE is enabled if I reset my network settings until I restart my phone.
I need VoLTE to work because in a few months the 2g and 3g bands for my carrier are getting shut shutdown and I will need VoLTE to make or receive calls.
Rapid bunny said:
My carrier tmobile support VoLTE. I attached a screenshot of what my sim settings look like. I don't have a toggle for VoLTE or VoWIFI but VoLTE is enabled if I reset my network settings until I restart my phone.
I need VoLTE to work because in a few months the 2g and 3g bands for my carrier are getting shut shutdown and I will need VoLTE to make or receive calls.
Click to expand...
Click to collapse
Ok, sorry about VoWIFI, it was another guy who published this option. Have you tried to reset phone app data and cache? Have you checked APN? have you ever tried to enable 5g and roaming? Tried to contact the t mobile service about VoLTE?
There is one more options to enable and change some phone options but it's very delicate, hence be really careful with it. It's a service number *#*#4636#*#*
At least shows you what options are really enabled on your phone.
I just got a sim card from a friend who has VoLTE from long ago. I tried it and can confirm that I didn't even get an option to enable VoLTE. Therefore, the option from my sim is fake, and it's obvious that VoLTE doesn't work on this phone right now.
I hope that Vivo would address and fix the issue soon.
VoLTE is finally working on the new update but still missing the toggles
The VoLTE issue lies with Vivo, not with your carrier. When you put a carrier SIM into your phone it contains unique information that tells the phone who your carrier is and the phone then configures the APN settings automatically. You cannot edit them. In Origin OS Ocean you can open System/etc/apn-config.xml and you will see a list of every carrier in the world and read what default APN settings the operating system automatically configures the APN for that carrier to be.
I have the Vivo X Note with the same Origin OS Ocean firmware as the X70pro. My Canadian carrier supports VoLTE and WiFi calling and their tech support manually added the IMEI of my phone to the equipment list for my line and assured me that VoLTE and WiFi calling are provisioned for the line, but neither of those toggles appear in my Mobile Networks/Sim settings, because the APN that Vivo applies for my carrier doesn't support VoLTE. If I put the same SIM into my Samsung Note 20 Ultra 5g or my Huawei Mate 20 X and look at the APN settings, they permit VoLTE and the toggle and feature works on those phones - so it is not the carrier, or the SIM - it is Vivo and their default APN settings for your carrier.
I have a strong 5g signal here, and I can download and stream or do VoIP calls at 5g, but when I place a voice call it drops to 3g or H. That isn't an issue here in Canada, because we have kept our 3g voice network up and running. When I travel to the US, however, I can't place calls because without VoLTE enabled voice calls drop to 3g - which no longer exists in the United States. Someone needs to convince Vivo to change the apn-config.xml file to reflect APNs for North American carriers to ensure VoLTE is possible. I would just edit the .xml file myself, but you can't save changes to an .xml file without root, and we can't root because Vivo won't unlock the bootloader for Origin OS Ocean devices.
This is what my APN needs to look like to enable VoLTE:
<apn carrier="Rogers Internet"
mcc="302"
mnc="720"
apn="ltemobile.apn"
mmsproxy="mmsproxy.rogers.com"
mmsport="80"
mmsc="http://mms.gprs.rogers.com"
type="default,supl,mms"
protocol="IPV4V6"
roaming_protocol="IP"
/>
<apn carrier="Rogers Tethering"
mcc="302"
mnc="720"
apn="ltedata.apn"
type="dun"
protocol="IPV4V6"
roaming_protocol="IP"
But unfortunately, this is what Vivo has for the default APN for my carrier in their System/Etc/apn-config.xml:
<apn carrier="Rogers Internet"
mcc="302"
mnc="720"
apn="ltemobile.apn"
type="default,mms,agps,supl,fota,hipri"
mmsproxy="mmsproxy.rogers.com"
mmsc="http://mms.gprs.rogers.com"
mmsport="80"
mvno_match_data="ROGERS"
mvno_type="spn"
protocol="IPV4V6"
roaming_protocol="IP"
/>
<apn carrier="Rogers Tethering"
mcc="302"
mnc="720"
apn="ltedata.apn"
type="dun"
mvno_match_data="ROGERS"
mvno_type="spn"
protocol="IPV4V6"
roaming_protocol="IP"
frcraig said:
The VoLTE issue lies with Vivo, not with your carrier. When you put a carrier SIM into your phone it contains unique information that tells the phone who your carrier is and the phone then configures the APN settings automatically. You cannot edit them. In Origin OS Ocean you can open System/etc/apn-config.xml and you will see a list of every carrier in the world and read what default APN settings the operating system automatically configures the APN for that carrier to be.
I have the Vivo X Note with the same Origin OS Ocean firmware as the X70pro. My Canadian carrier supports VoLTE and WiFi calling and their tech support manually added the IMEI of my phone to the equipment list for my line and assured me that VoLTE and WiFi calling are provisioned for the line, but neither of those toggles appear in my Mobile Networks/Sim settings, because the APN that Vivo applies for my carrier doesn't support VoLTE. If I put the same SIM into my Samsung Note 20 Ultra 5g or my Huawei Mate 20 X and look at the APN settings, they permit VoLTE and the toggle and feature works on those phones - so it is not the carrier, or the SIM - it is Vivo and their default APN settings for your carrier.
I have a strong 5g signal here, and I can download and stream or do VoIP calls at 5g, but when I place a voice call it drops to 3g or H. That isn't an issue here in Canada, because we have kept our 3g voice network up and running. When I travel to the US, however, I can't place calls because without VoLTE enabled voice calls drop to 3g - which no longer exists in the United States. Someone needs to convince Vivo to change the apn-config.xml file to reflect APNs for North American carriers to ensure VoLTE is possible. I would just edit the .xml file myself, but you can't save changes to an .xml file without root, and we can't root because Vivo won't unlock the bootloader for Origin OS Ocean devices.
Click to expand...
Click to collapse
Hi sorry my question is off topic, but I want to get the Vivo X Note. Is possible to change de default launcher in the phone with Origin OS? Thanks
With the Origin OS Ocean firmware you can change the default launcher, but only after registering a Vivo Account (you can do this by e-mail - you don't need a Mainland China phone number). Sign into your Vivo Account (at the top of your devices "settings") and then go to Settings/Security/More Security Settings/ Replace the System Launcher. I'm using Nova as default launcher on my Vivo X Note.
frcraig said:
The VoLTE issue lies with Vivo, not with your carrier. When you put a carrier SIM into your phone it contains unique information that tells the phone who your carrier is and the phone then configures the APN settings automatically. You cannot edit them. In Origin OS Ocean you can open System/etc/apn-config.xml and you will see a list of every carrier in the world and read what default APN settings the operating system automatically configures the APN for that carrier to be.
I have the Vivo X Note with the same Origin OS Ocean firmware as the X70pro. My Canadian carrier supports VoLTE and WiFi calling and their tech support manually added the IMEI of my phone to the equipment list for my line and assured me that VoLTE and WiFi calling are provisioned for the line, but neither of those toggles appear in my Mobile Networks/Sim settings, because the APN that Vivo applies for my carrier doesn't support VoLTE. If I put the same SIM into my Samsung Note 20 Ultra 5g or my Huawei Mate 20 X and look at the APN settings, they permit VoLTE and the toggle and feature works on those phones - so it is not the carrier, or the SIM - it is Vivo and their default APN settings for your carrier.
I have a strong 5g signal here, and I can download and stream or do VoIP calls at 5g, but when I place a voice call it drops to 3g or H. That isn't an issue here in Canada, because we have kept our 3g voice network up and running. When I travel to the US, however, I can't place calls because without VoLTE enabled voice calls drop to 3g - which no longer exists in the United States. Someone needs to convince Vivo to change the apn-config.xml file to reflect APNs for North American carriers to ensure VoLTE is possible. I would just edit the .xml file myself, but you can't save changes to an .xml file without root, and we can't root because Vivo won't unlock the bootloader for Origin OS Ocean devices.
Click to expand...
Click to collapse
I have the same issue with x80 pro running funtouch. Please how do I edit the xml?
I thought it was vivo...I contacted them and they made go thru recording the screen and sending logs. They never helped. Just kept saying please send the logs. I'm rooted so if you can help me I would greatly appreciate it.
diopskill said:
I have the same issue with x80 pro running funtouch. Please how do I edit the xml?
I thought it was vivo...I contacted them and they made go thru recording the screen and sending logs. They never helped. Just kept saying please send the logs. I'm rooted so if you can help me I would greatly appreciate it.
Click to expand...
Click to collapse
If you are rooted with Magisk try the VoLTE enabler module.
diopskill said:
I have the same issue with x80 pro running funtouch. Please how do I edit the xml?
I thought it was vivo...I contacted them and they made go thru recording the screen and sending logs. They never helped. Just kept saying please send the logs. I'm rooted so if you can help me I would greatly appreciate it.
Click to expand...
Click to collapse
If you are rooted with Magisk, try this module https://github.com/edgd1er/voenabler/releases/tag/v1.8
frcraig said:
If you are rooted with Magisk try the VoLTE enabler module.
If you are rooted with Magisk, try this module https://github.com/edgd1er/voenabler/releases/tag/v1.8
Click to expand...
Click to collapse
Thanks,
I have volte, just no 5g icon. I'm on TMO. Is possible to add 5g option under preferred network thru editing?

VoLTE and WIFI calling in US

Hi everyone,
Have a global version of X5 Pro.
Trying to make VoLTE and VoWIFI working on T-Mobile in US but no luck.
No toggles in SIM settings and toggles in Phone Info are grayed out.
Any ideas to activate it?
Same with me, I started another thread or two concerning this issue but I believe it has to do with T-Mobile's VoLTE/Wifi-calling provisioning relative to the Find X5 Pro's firmware?
Of course the phone supports VoLTE and WiFi-Calling, so I'm not sure why at least the latter won't work (or at least have a toggle). If you google 'how to enable WiFi calling', most people tell you to set (or re-set) your E911 address because it's a necessary feature of WiFi calling. Ive done this on the T-Mobile website AND with a support rep on the phone, but still no toggle to enable.
I haven't found anything about this outside of XDA so perhaps it's time to submit a ticket directly to Oppo.
Edit: could anyone from the EU/UK chime in on whether they have the toggle options for VoLTE/WiFi-calling? I think we need to identify whether the problem is based on region/carrier rather than the phone.
Pulled from a recent T-Mobile forum post about the same issue (but on multiple different phones):
"In order to enable WiFi calling from an unlocked phone, there appear to be several components which all need to align perfectly. The the phone must have the physical capability, obviously a WiFi antenna. It also seems to rely on VoLTE provisioned and WiFi calling provisioned abilities.
The former carrier must have unlocked the device and its IMEI for use on another carrier.
The current carrier must have enabled WiFi calling, and also configured an E911 address.
"Exactly! The firmware in the Sprint S8 is not compatible with T-Mobile’s WiFi Calling implementation. XDA might offer some work around through flashing or root, but through normal methods, WiFi Calling on such an old device that actually has carrier specific firmware isn’t going to work with a different carrier for those feature implementations. "
dipleg said:
Edit: could anyone from the EU/UK chime in on whether they have the toggle options for VoLTE/WiFi-calling? I think we need to identify whether the problem is based on region/carrier rather than the phone.
Click to expand...
Click to collapse
Vodafone Germany: Custom Firmware with VF branding, but no SIM- or Netlock
VoLTE has no toggle but is activated by default, VoWiFi has a toggle and works.

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