Question WIFI Calling with US Provider - Xiaomi 12T Pro / Redmi K50 Ultra

Is there a way to unlock the WIFI Calling feature ?

ReinSauter said:
Is there a way to unlock the WIFI Calling feature ?
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Just like the VOLTE, it is your mobile network provider that activates these services or not.

it is activated on i.e several phones so it is like theprovider blocks certain IMEI ?

ReinSauter said:
it is activated on i.e several phones so it is like theprovider blocks certain IMEI ?
Click to expand...
Click to collapse
Which model?
my phone/detailed info/model
Which provider?

Xiaomi 12 Tpro Tmobile USA and/or ATT

modell 22081212UG

ReinSauter said:
modell 22081212UG
Click to expand...
Click to collapse
You have a 12T pro not a 12 pro.
Additional information:
The version of the rom (full name)?.
Example:V13.0.4.0.SLFMIXM
Surely Global but to be confirmed.
https://www.att.com/features/wifi-calling/
https://www.att.com/idpassets/images/support/pdf/Compatible-Wi-Fi-Calling-Devices-on-ATT-Network.pdf
https://www.t-mobile.com/support/coverage/wi-fi-calling-from-t-mobile
To be checked.
Regarding t-mobile, it seems that it only works with unlocked phones.
Good news! All new T-Mobile smartphones have Wi-Fi calling.
https://www.t-mobile.com/offers/wifi-calling-wifi-extenders

Related

T-Mobile Use

Anyone using the Honor 5X with T-Mobile? If so, what is your experience and does the wi-fi calling feature work? Thank you.
tgsboats said:
Anyone using the Honor 5X with T-Mobile? If so, what is your experience and does the wi-fi calling feature work? Thank you.
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I have been using it for months. Not aware of how to use wifi calling, so can't answer that question. Recently having issues with device lag quite a bit, not sure why. But not aware of any issues directly related to T-Mobile. Not sure if this helps or not.
Not recommended. WiFi calling does not work, but the bigger issue is that Band 12 is disabled with this handset on T-Mobile, so you don't get access to most of the new towers that T-Mobile has put up over the last few years. Huawei has released updates in other regions to add VoLTE functionality in, which would enable Band 12 in the US, but the update has yet to reach the L24 model that's sold here. Maybe spring for a OnePlus 3 or see what else is new out there.
tgsboats said:
Anyone using the Honor 5X with T-Mobile? If so, what is your experience and does the wi-fi calling feature work? Thank you.
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Click to collapse
My L24 gets VoLTE but no Wifi calling. not sure about the band 12
Mostly all I get is LTE band 4 most everywhere I travel locally and it's pretty fast
T-Mobile
tgsboats said:
Anyone using the Honor 5X with T-Mobile? If so, what is your experience and does the wi-fi calling feature work? Thank you.
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WiFi calling is carrier specific. We advise that you contact your carrier to see what's offered in your plan. (ED)
HonorUSA_Eric said:
WiFi calling is carrier specific. We advise that you contact your carrier to see what's offered in your plan. (ED)
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It's also phone specific why not just tell him it's not supported on the 5x ?
If your here representing Honor and you don't even know the limitations of the device why post at all ?
so, My understanding is The HONOR 5X does not support wifi calling.... I have TMobile, and moved and we have no service coverage, so I have to use the wifi to call. Back to my IPHONE.... I guess
thunderstormstacy said:
so, My understanding is The HONOR 5X does not support wifi calling.... I have TMobile, and moved and we have no service coverage, so I have to use the wifi to call. Back to my IPHONE.... I guess
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yes, no wifi calling , not yet..
No volte or wifi calling currently

VoLTE is not supported by your current software version

Hi,
I just got my 965 Dual Sim and I am trying to enable VoLTE on AT&T network. Whenever I try to enable the feature the phone gives me a "VoLTE is not supported by your current software version. Contact customer service for more details". Anyone got any ideas as to how to get this to work?
More than likely you'll have to wait to see if an AT&T CSC will be available for Exynos devices. Same situation as Canada
Sent from my SM-G965W using Tapatalk
Sm-G965w
Same problem here .is there any solution to enable volt
Many networks have problems dropping calls with VoLTE enabled. Even if you have the option, I suggest leave it disabled/disable it.
Volte s9 pluse
Deepcuts said:
Many networks have problems dropping calls with VoLTE enabled. Even if you have the option, I suggest leave it disabled/disable it.
Click to expand...
Click to collapse
Hmmm yep let's leave it .but here in India volte is better then lte .
Yes i

Just received August security patch for SM-G965U1 (unlocked S9+)

Wifi calling is enabled for Verizon (go to phone settings to enable). I am sure there
are other changes. Update G965U1UEU3ARH7.
fb
Hi, just posted the same update for GS9 Unlocked using AT&T. 495.78 MB.
Thanks for sharing... View attachment 4598513
Sent from my SM-G960U1 using Tapatalk
fbroce said:
Wifi calling is enabled for Verizon (go to phone settings to enable). I am sure there
are other changes. Update G965U1UEU3ARH7.
fb
Click to expand...
Click to collapse
Yes, and Secure Wi-Fi has now been added. I think it previously existed only on the European firmwares. Now we get it, too.
Any way to see if AT&T Wifi Calling will work as I do not see the option in Settings? I have US Unlocked GS9 on AT&T
If I flash this U1 for my ATT phone (running full Tmobile firmware now),
will I have Wifi calling with Tmobile? Or Wifi calling only works with Verizon with U1
sweetboy02125 said:
If I flash this U1 for my ATT phone (running full Tmobile firmware now),
will I have Wifi calling with Tmobile? Or Wifi calling only works with Verizon with U1
Click to expand...
Click to collapse
Despite what the websites like to post, there really isn't a VZW U1 and an ATT U1. There's just XAA U1. You'll get Wi-Fi Calling on every carrier with it now, except for ATT.
maddie01 said:
Any way to see if AT&T Wifi Calling will work as I do not see the option in Settings? I have US Unlocked GS9 on AT&T
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Reading up on it (short summary) this is because AT&T uses a database of IMEI numbers to provision WiFi calling and VoLTE. Since our IMEI numbers from our phones are not in that database we won't be able to use WiFi calling or VoLTE.
Makes sense but is ridiculous for AT&T to restrict it. Has anyone ever called to ask to have thier Unlocked IMEI added to this "list" so that these features will work? Seems like it is a disadvantage for AT&T if it works for TMo and now Verizon but not AT&T...?
Just curious...
Sent from my SM-G960U1 using Tapatalk
maddie01 said:
Makes sense but is ridiculous for AT&T to restrict it. Has anyone ever called to ask to have thier Unlocked IMEI added to this "list" so that these features will work? Seems like it is a disadvantage for AT&T if it works for TMo and now Verizon but not AT&T...?
Just curious...
Sent from my SM-G960U1 using Tapatalk
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Click to collapse
It's odd for sure. Verizon has always had VoLTE on unlocked too. At least since the S7. Probably before that. ATT has never felt the need to change the policy.
maddie01 said:
Makes sense but is ridiculous for AT&T to restrict it. Has anyone ever called to ask to have thier Unlocked IMEI added to this "list" so that these features will work? Seems like it is a disadvantage for AT&T if it works for TMo and now Verizon but not AT&T...?
Just curious...
Sent from my SM-G960U1 using Tapatalk
Click to expand...
Click to collapse
Who can say if it's disadvantageous or not, for all we know it might be the technology differences between the networks. Also it does make sense... having specific IMEI numbers known to connect to carrier specific services like wifi calling and VoLTE ensures that everything works. It doesn't make it convenient for us and I will admit it would be nice to have the features.. but for calling via wifi there are options.
Personally I use pbx in a flash and bria softphone. With the right VoIP provider it's a good setup and doesn't break the bank at all. I haven't even spent more then 5 bucks maybe in a month. For me this is better then wifi calling and I don't have any problems.
As for adding our IMEI to that database I tried inquiring about it, but I do recall reading where some people may have had luck in doing this. I suspect it may require a bit of luck and/or perserveriance after my last discussion with AT&T customer service.
I explained the situation and what needed to be done while being placed on hold a few times. As the call continued I tried to be patient with the person I spoke too, but I admit it is not easy when he is saying that just because I see H data speed that it's actually VoLTE. When I mentioned the speed test and how it was H data speed (and that H data speeds are not VoLTE) he was saying that H data speeds were like blazing fast compared to LTE..
I had to politely finish the call before I either started to laugh or feel sorry for that rep.
scottusa2008 said:
I tried inquiring about it, but I do recall reading where some people may have had luck in doing this. I suspect it may require a bit of luck and/or perserveriance.
In my case I tried to be patient with the person I spoke too. After waiting on hold a few times the representative tried to say everything was normal.. and then proceeded but to say that just because I see H+ speed that it's actually VoLTE. When I mentioned the speed test and how it was H data speed (and that H data speeds are not VoLTE) he was saying that H data speeds were like blazing fast compared to LTE..
I had to politely finish the call before I either started to laugh or feel sorry for that rep.
Click to expand...
Click to collapse
Hahaa, i have had a similar situations in the store where i had to correct a worker that was completely explaining 3G/HSPA wrong. Incredible how incompetent they are unless you just want an iPhone...thanks
Sent from my iPad using Tapatalk
maddie01 said:
Makes sense but is ridiculous for AT&T to restrict it. Has anyone ever called to ask to have thier Unlocked IMEI added to this "list" so that these features will work? Seems like it is a disadvantage for AT&T if it works for TMo and now Verizon but not AT&T...?
Just curious...
Click to expand...
Click to collapse
The only thing I've seen some people do successfully to get VoLTE working on an unbranded unlocked device is to have AT&T provision a SIM card to an IMEI of a phone that is AT&T branded and capable of VoLTE. Then use that SIM card on the unbranded unlocked device.
guyd said:
The only thing I've seen some people do successfully to get VoLTE working on an unbranded unlocked device is to have AT&T provision a SIM card to an IMEI of a phone that is AT&T branded and capable of VoLTE. Then use that SIM card on the unbranded unlocked device.
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Click to collapse
Do you recall seeing if they said this work for prepaid and/or postpaid?
If it's that simple i'm gonna have to find a phone capable of VoLTE and see if this works
scottusa2008 said:
Do you recall seeing if they said this work for prepaid and/or postpaid?
If it's that simple i'm gonna have to find a phone capable of VoLTE and see if this works
Click to expand...
Click to collapse
Honestly don't recall, or if it was even mentioned.
So this new version includes wifi calling. You find this in the menu system somewhere? Does HD Voice also work and indicated like Verizon SM-G965U?
houston-tx said:
So this new version includes wifi calling. You find this in the menu system somewhere? Does HD Voice also work and indicated like Verizon SM-G965U?
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Click to collapse
Hd voice always worked on unlocked for Verizon. Wifi calling is found in the phone app's settings.
I flashed G965U1UES3ARI1 for XAA to SM-G965U1 and I can't find settings for Wifi calling. Are they visible or just built in and assumed to be there?
houston-tx said:
I flashed G965U1UES3ARI1 for XAA to SM-G965U1 and I can't find settings for Wifi calling. Are they visible or just built in and assumed to be there?
Click to expand...
Click to collapse
What carrier are you on? It's supported for SPR, TMB, and now VZW. Look in the settings of the actual phone app, not the device settings.
Verizon. Found it. Thought it was in Settings. Thank you!
houston-tx said:
Verizon. Found it. Thought it was in Settings. Thank you!
Click to expand...
Click to collapse
No problem. You're not the first person to look for it in the wrong place. U1 builds always place the setting there. So they stayed consistent doing it this way.

VoLTE

Is there anyway to get VoLTE in the US for LYA-L29?
whtgrizzly said:
Is there anyway to get VoLTE in the US for LYA-L29?
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Click to collapse
Get your carrier to enable volte on your service. Restart your phone and it should work
Hazzay88 said:
Get your carrier to enable volte on your service. Restart your phone and it should work
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Click to collapse
Do I have to take it to the store for them to do it, or can I just call customer service?
The other response is incorrect. Huawei has a whitelist of carrier MCC/MNC for VoLTE support. US carriers are not on it for LYA-L29.
VoLTE working fine in the middle east for the LYA-L29 for those who are wondering.
I don't know about North America though.
Sent from my SM-N960F using XDA-Developers Legacy app
duraaraa said:
The other response is incorrect. Huawei has a whitelist of carrier MCC/MNC for VoLTE support. US carriers are not on it for LYA-L29.
Click to expand...
Click to collapse
Volte works fine on the P20 Pro. Since that phone was never sold or supported in the USA there is no reason US carriers would be on a whitelist.
Volte also works fine on the Xiaomi MI Mix 2 & 2S which aren't sold or supported here.
Same problem in Canada too...the carrier has to work with Huawei to turn the feature on. I upgraded from an S7Edge which WAS VoLTE enabled by the carrier, so the account has the feature, but it did not automatically carry over.
Looks like there will be a few months before we get this, seeing how long it took for P20 Pro.
Anyone on UK EE with VoLTE available?
Sent from my LYA-L29 using Tapatalk
I'm using MintMobile with the Mate 20 Pro. I found out that this carrier does not provide VoLTE service.
Sent from my LYA-L09 using Tapatalk
Ipse_Tase said:
Same problem in Canada too...the carrier has to work with Huawei to turn the feature on. I upgraded from an S7Edge with WAS VoLTE enabled by the carrier, so the account has the feature, but it did not automatically carry over.
Looks like there will be a few months before we get this, seeing how long it took for P20 Pro.
Click to expand...
Click to collapse
Hola
Can you please elaborate. For some of our carriers in Canada VoLTE and Wi-Fi Calling are only enabled with carrier branded phones. This is particularly true for Rogers and Fido. If you are dealing with Shaw, Telus and Bell I have seen different scenarios that certain non branded phones working ok for VoLTE and other phones not working at all.
I am with Fido and I bought the Mate 20 Pro from them and VoLTE and Wi-Fi Calling work.
Sent from my LYA-L0C using Tapatalk
I'm with Videotron...hence the difference. They have been notoriously slow to enable the feature on new phones.
On the flip side, I was getting VoLTE on my old phone which was NOT bought from them (it was first registered on Koodo).
Rogers does not allow that -as you mentioned.
geovass said:
Anyone on UK EE with VoLTE available?
Sent from my LYA-L29 using Tapatalk
Click to expand...
Click to collapse
Anyone?
Sent from my LYA-L29 using Tapatalk
Ipse_Tase said:
I'm with Videotron...hence the difference. They have been notoriously slow to enable the feature on new phones.
On the flip side, I was getting VoLTE on my old phone which was NOT bought from them (it was first registered on Koodo).
Rogers does not allow that -as you mentioned.
Click to expand...
Click to collapse
A follow-up on my own post:
- we all knew the Canadian version L0C is NOT dual-SIM - I finally got a chance to test this. Bummer.
- I put in my phone a Rogers SIM and VoLTE and VoWiFi WERE INSTANTLY ENABLED. So the software supports it, has to be enabled by the provider via the SIM cfg. Somewhat positive news - as we all thought, Rogers would only allow VoLTE on the phones they sell, the test proved this is not the case.
Ipse_Tase said:
A follow-up on my own post:
- we all knew the Canadian version L0C is NOT dual-SIM - I finally got a chance to test this. Bummer.
- I put in my phone a Rogers SIM and VoLTE and VoWiFi WERE INSTANTLY ENABLED. So the software supports it, has to be enabled by the provider via the SIM cfg. Somewhat positive news - as we all thought, Rogers would only allow VoLTE on the phones they sell, the test proved this is not the case.
Click to expand...
Click to collapse
Got 9.0.0.182 update and VoLTE works now. NO VoWiFI though.
any one from israel with partner / 012mobile volte vowifi is on on the phone but its not working its goes to H+
Anyone else willing to admit they don't even know what it is and turned it off just to get rid of the awful notification?
Oh, right , nah me either ....
Quaz1 said:
Anyone else willing to admit they don't even know what it is and turned it off just to get rid of the awful notification?
Oh, right , nah me either ....
Click to expand...
Click to collapse
I can definitely tell that the call quality is a LOT better in my case with VoLTE on, as it uses HD codecs (G.722).
You can try for yourself by turning VoLTE ON and then play with WCDMA vs LTE settings...one will disable it right away. In my case even the call button in the dialer shows HD.
And yes, the damn icon is hideous and won't go away even with System Tuner.
bhagiratha said:
I'm using MintMobile with the Mate 20 Pro. I found out that this carrier does not provide VoLTE service.
Click to expand...
Click to collapse
MintMobile does provide Volte but they have no idea which phone models it works on so they don't advertise Volte. I had Volte functionality on MintMobile with One Plus 5, Essential PH-1, Xiaomi Mix 2 & Mix 2S, and Huawei P20 Pro.
But it does not work with this phone.
On Telus, the first time I set the phone up it made me jump through a hoop where I went to a Telus site and enabled the VOxxx stuff. Strangely, it seemed to be kinda random whether it was 'on' or not, and before the last 2 updates I don't think you could even trust the icon to be telling you the truth. I'm not sure why this feature is a big deal, codecs or not the voice quality seems fine on this phone regardless. Some people claim that enabling any of the VO stuff gobbles battery, I haven't really noticed.
Much like the AOD, it is sad that we have almost no control over the icons at the top - especially when space is at such a premium there.

Question Help! Not getting 5G and VOLTE after changing to Canada ROGERS Sim (Unit from Philippines)

Hi Everyone,
Need help. I recently migrated to Canada and I brought my S23 Ultra with me (Open Line: CSC:XTC). I noticed that I'm only getting a 4G+ signal and VoLTE is not enabled. I check Rogers 5G coverage and our area is part of it. I tried inserting my sim to my wife's Iphone and it is getting a 5G signal. Can this be fixed?
Condolences on your move from a fellow Canadian
Are you sure the phone has the correct LTE bands (it probably does...).
Secondly, the Canadian telecom cartel has colluded and decided that they don't like phones sold elsewhere or imported...you could be SOL as I don't see Robbers authorizing your IMEI.
Apple is not caving in to carriers, that's why the iPhone works just fine.
I doubt that changing the CSC will help, as the restrictions are placed on IMEI.
Ipse_Tase said:
Condolences on your move from a fellow Canadian
Are you sure the phone has the correct LTE bands (it probably does...).
Secondly, the Canadian telecom cartel has colluded and decided that they don't like phones sold elsewhere or imported...you could be SOL as I don't see Robbers authorizing your IMEI.
Apple is not caving in to carriers, that's why the iPhone works just fine.
I doubt that changing the CSC will help, as the restrictions are placed on IMEI.
Click to expand...
Click to collapse
For real? I can understand if they won't allow VoLTE (which they should) but not being able to get a 5G signal is just plain BS.
Btw, what do you mean by SOL?
bashblues said:
For real? I can understand if they won't allow VoLTE (which they should) but not being able to get a 5G signal is just plain BS.
Btw, what do you mean by SOL?
Click to expand...
Click to collapse
sh!t out of luck.
The issue is the CSC - if you are able to get the Rogers CSC working it should allow you to access 5G/VoLTE (possibly VoWiFi - Rogers allows 3rd party devices as long as the config files are correct - only Bell/Telus have an IMEI whitelist).
lexcyn said:
The issue is the CSC - if you are able to get the Rogers CSC working it should allow you to access 5G/VoLTE (possibly VoWiFi - Rogers allows 3rd party devices as long as the config files are correct - only Bell/Telus have an IMEI whitelist).
Click to expand...
Click to collapse
I already tried but Rogers CSC is not on the list. Is there any chance I can still change it to Rogers CSC?
Is it enabled in the *#*#4636#*#* menu?
xNotta said:
Is it enabled in the *#*#4636#*#* menu?
Click to expand...
Click to collapse
I can't access that menu. When I tried that in the dialer it calls the number and says please check the number etc2x....
bashblues said:
I already tried but Rogers CSC is not on the list. Is there any chance I can still change it to Rogers CSC?
Click to expand...
Click to collapse
What model is your phone? I would say you could try flashing to the W firmware but if you have an EU model phone it won't work... so I am not sure how you could get the correct CSC.
lexcyn said:
What model is your phone? I would say you could try flashing to the W firmware but if you have an EU model phone it won't work... so I am not sure how you could get the correct CSC.
Click to expand...
Click to collapse
It's the Philippine Variant.
Model: SM-S918B/DS
CSC: XTC (Openline)
bashblues said:
It's the Philippine Variant.
Model: SM-S918B/DS
CSC: XTC (Openline)
Click to expand...
Click to collapse
Yeah so I don't believe you can flash W model but I am unsure. You may be able to try out one of those CSC changing services though? Not 100% if they work.
what is your plan , I don't have 5G on rogers because I dont pay for this, but VoLTE should work ? VoWiFI works tho.
oVeRdOsE. said:
what is your plan , I don't have 5G on rogers because I dont pay for this, but VoLTE should work ? VoWiFI works tho.
Click to expand...
Click to collapse
It's Rogers Infinite Plan (Unlimited and has 5G). VoLTE is not showing but I tried calling over it and the Signal still 4G+ so I guess VoLTE is activated. My problem now is the 5G signal. Went to Wireless Wave (where I got the sim) but they can't figure it out as well. They gave me a number of the TechSupport they said maybe it is something that needs to be done backend.
bashblues said:
It's Rogers Infinite Plan (Unlimited and has 5G). VoLTE is not showing but I tried calling over it and the Signal still 4G+ so I guess VoLTE is activated. My problem now is the 5G signal. Went to Wireless Wave (where I got the sim) but they can't figure it out as well. They gave me a number of the TechSupport they said maybe it is something that needs to be done backend.
Click to expand...
Click to collapse
I'm wondering if maybe some bands are just hidden for our 5G? Did you try the how to guide on how to unlock all bands? If you are able to get access into the service mode you might be able to do it: https://forum.xda-developers.com/t/...23-series-including-sub-6-and-mmwave.4554611/
bashblues said:
It's Rogers Infinite Plan (Unlimited and has 5G). VoLTE is not showing but I tried calling over it and the Signal still 4G+ so I guess VoLTE is activated. My problem now is the 5G signal. Went to Wireless Wave (where I got the sim) but they can't figure it out as well. They gave me a number of the TechSupport they said maybe it is something that needs to be done backend.
Click to expand...
Click to collapse
That's still better than being on Telus. My data drops down to H+ when I make a call and the call quality on 3G is terrible in an area of Toronto dominated by highrises.
jcsww said:
That's still better than being on Telus. My data drops down to H+ when I make a call and the call quality on 3G is terrible in an area of Toronto dominated by highrises.
Click to expand...
Click to collapse
I feel you but it is sad that we are not getting the service we are paying for. SIM Plan is new and the phone is one of the latest. It's just disapppointing. I'm calling Tech Support right now but it seems they don't know anything either but they are very helpful though.
bashblues said:
I feel you but it is sad that we are not getting the service we are paying for. SIM Plan is new and the phone is one of the latest. It's just disapppointing. I'm calling Tech Support right now but it seems they don't know anything either but they are very helpful though.
Click to expand...
Click to collapse
Tech Support isn't allowed to tell you that features like VoLTE, VoWiFi, and in the case of some device brands, like OnePlus, 5G are not provisioned by the system because those device IMEI's and model numbers are not whitelisted in the system and there for, not permitted to use these features.
Hey Guys! I messed up. I tried changing the CSC just for the sake of trying it via the dialer by typing *#272*IMEI# and chose randomly BTB. Now VOLTE is gone, signal is only 4G (Not even 4G+) like before. I tried typing it again to change it back to my original CSC (XTC) but it wont work anymore (the *#272*IMEI#). Is there another way for me to change it back to the original CSC?
Was able to change it back to XTC using SamFW. Was hoping to change it to RWC (Rogers) but it failed. Oh well! XTC (4G+) is better than BTB (4G) but was hoping if RWC was forced I could have gotten a 5G signal (I think).

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