Database Users

Can't make calls when on LTE mode

I have n9005 rooted TouchWiz stock on 5.0,
when my phone is on LTE mode i'am unable to make/receive calls.
Kindly help me solve this problem.

Is the phone set to LTE only? If it is, does the carrier support VoLTE?

thahim said:
I have n9005 rooted TouchWiz stock on 5.0,
when my phone is on LTE mode i'am unable to make/receive calls.
Kindly help me solve this problem.
Click to expand...
Click to collapse
LTE/4G is a Data-Only network. To make calls over it your carrier needs to support Voice Over LTE, or VoLTE for short. Which is the mobile equivalent of VoIP.\
If your carrier does not support VoLTE, and your device is only allowed to access LTE, you can't make calls. Change to 'LTE/WCDMA (Auto)' (4G/3G) or 'LTE/WCDMA/GSM (Auto)' (4G/3G/2G) mode so the phone can automatically change to a network that supports voice codecs.

ShadowLea said:
LTE/4G is a Data-Only network. To make calls over it your carrier needs to support Voice Over LTE, or VoLTE for short. Which is the mobile equivalent of VoIP.\
If your carrier does not support VoLTE, and your device is only allowed to access LTE, you can't make calls. Change to 'LTE/WCDMA (Auto)' (4G/3G) or 'LTE/WCDMA/GSM (Auto)' (4G/3G/2G) mode so the phone can automatically change to a network that supports voice codecs.
Click to expand...
Click to collapse
My phone doesnt has LTE only mode so i keep it on LTE/WCDMA/GSM, still i can't make or rec calls.
Sent from my SM-N9005 using Tapatalk

How about switching to wcdma/gsm or wcdma only?

audit13 said:
How about switching to wcdma/gsm or wcdma only?
Click to expand...
Click to collapse
They work fine, but LTE.

thahim said:
They work fine, but LTE.
Click to expand...
Click to collapse
Something appears to be preventing the automatic switch from LTE to 3G/2G. Did you do something in the Servce menu?

ShadowLea said:
Something appears to be preventing the automatic switch from LTE to 3G/2G. Did you do something in the Servce menu?
Click to expand...
Click to collapse
My device didn't had the LTE option first so i did something which i don't remember now, what it was, i did it when i never used LTE, but as now i'm using LTE and came accross this problem. also i have installed a network type toggle app.

Sorry for being such a nub but where do I go to change the mode? Option > network operation? Thanks
Sent from Tapatalk {♤}

soul2eat said:
Sorry for being such a nub but where do I go to change the mode? Option > network operation? Thanks
Sent from Tapatalk {♤}
Click to expand...
Click to collapse
Network settings has that option for Network Type.

Regions  myanmar
Not receiving incoming calls on AIRTEL 4G LTE
Iam facing peculiar problem with the phone. Need help with the problem.
I am using samsung note 3 LTE. When ever some one tries to call me, my mobile is Not reachable or out of coverage area even when my mobile is in my hand , perfectly working with the second sim. outgoing calls are working fine. Again, when I am in call, then if any one tries calling me, then I get call waiting. So incoming call waiting is working for me. But incoming calls are not able to connect. LTE data is working fine though incoming calls are not working. 
Tried the following but no luck. Problem still persists:
1. Reset phone and erase all data
2. Hard reset phone (volume down + poweroff and clear all data in drive)
3. Tried changing SIM to second slot
When I switch the sim back to 3G mode or 2g mode , incoming calls are working perfectly fine . I googled it and found that most people had same issue and was resolved on switching back to 3G or 2g . 
But I need to use 4g . Please tell me a solution.

I had that same issue until I took my note 3 to Rogers and they said that the note 3 doesn't support Lte

Your rom must support VoLTE.

I would unroot and go back to stock firmware, and see if problem still happens,? if it does ,its most likely the sim card.sd card reader slot, (flex cable),my Galaxy s4 had the similar symptoms , but LTE would work with a custom rom, but not if I used stock firmware, replacing sim card reader flex , just google your mak and model and search ebay. mine cost a few pounds for a decent quality part, so dont go rushing to buy the cheapest. No problems since replacing that part, even after resetting phone 3 times to see if it was a fluke. I know its a bit late for a reply, but this actually worked , I am 99% sure it would work for anyone else who has this problem with lte not connecting when 3G, and 2g do connect. If you have tried swapping sim cards, putting sim in another phone,, etc,etc. this part mentioned(sim card/sd card reader) is your culprit. Took me just over 5 hours of testing to find the solution. thanks and fair well android users
---------- Post added at 06:49 AM ---------- Previous post was at 06:24 AM ----------
For many people having issues with LTE not connecting and diverting to voicemail on android, I am here to offer a solution to your woes. I have a Samsung Galaxy S4, GT-I9505, and recently in in 2018 in July, I had the same problem, phone calls connected on Gsm, Wdcma, BUT when I tried LTe mode, NOTHING, WENT STRAIGHT TO VOICEMAIL.Anyway I tried almost everything mentioned on certain websites and forums, with some luck, Changing LTE mode to GSM worked, and I could receive and hear phone calls. So I investigated further, I tried re flashing stock firmware, factory resetting phone.(nothing worked). I then rooted my phone and flashed a custom rom (do not try this) as it could damage your device if flashed wrongly. Yeah, so I flashed a custom rom, and low and behold problem disappeared, so I used my phone on LTE for 2 days, with no problems, I then decided to go bacjk to stock firmware, ...problem came back, not connecting to LTE mode..........being as patient as I can be, never gave up, and had a spare phone which was dead, just laying in the drawer, ..so ,I took phone apart and thought, it must be where simcard contact make contact with sim card reader contacts ( broken sim card /sd card reader part, and was I wrong, no, it actually was the sim card reader part which coonects with th motherboard, Voila, I am 99% sure if anyone else has this problem with any android that has LTE capabilities, and you know its not the sim card, then try this fix first, MAKING SURE YOU GET SOMEONE YOU KNOW TO HELP YOU , IF YOU ARE UNSURE OF WHERE TO BUY AD HOW TO FIT. hope this has helped,and I know it is a long thread, but hopefully it will be a solution that works for whoever reads and trie this, over and out. yours in sincerity, Tech82, from Surrey, England.

poddy82 said:
I would...
Click to expand...
Click to collapse
You are only 3 years too late. No big deal !
Sent from my Galaxy Note 8 using XDA Labs

In fairness post might be useful to some .
Where it is actually the sim holder .
But 99% of the problems are not the sim holder .
Though very odd that S4 user makes only one post and that's on a Note 3 forum not his phones forum .

i am facing the problem with my LGF180

This is Note 3 forum not your phone .

My nexus 6p can't call and receive call

Hi everyone please I need help
I buy nexus 6p form USA , and I am bring it at Saudi Arabia
After 2 weeks with a good mobile am surprised my phone can't call and receive calls
I tried to change preferred network to 2G or 3G but
I can't and I tried by *#*#4636#*#* still can't, only used lte and mobile data ,
I tried 3 sim card with different companies at my country
and the problem it's still
Please help me pleeeaaase

Hello please answer me

Tried calling the carriers for assistance?
Sent from a 128th Legion Stormtrooper 6P

Ferasmn said:
Hi everyone please I need help
I buy nexus 6p form USA , and I am bring it at Saudi Arabia
After 2 weeks with a good mobile am surprised my phone can't call and receive calls
I tried to change preferred network to 2G or 3G but
I can't and I tried by *#*#4636#*#* still can't, only used lte and mobile data ,
I tried 3 sim card with different companies at my country
and the problem it's still
Please help me pleeeaaase
Click to expand...
Click to collapse
Is your phone reading your sim card.. Did the network come up on the screen?

Yes it's reading a sim card , and I call carrier assistance

Please help me

Ferasmn said:
Please help me
Click to expand...
Click to collapse
Are you rooted?
Did you reboot your phone?
Did you do a factory reset?
Sent from my Nexus 6P using Tapatalk

Are you rooted? No
Did you reboot your phone? Yes
Did you do a factory reset? Yes

You said data works but calls don't?
Sent from a 128th Legion Stormtrooper 6P

Ferasmn said:
Are you rooted? No
Did you reboot your phone? Yes
Did you do a factory reset? Yes
Click to expand...
Click to collapse
did you reflash the Stock Rom?
You should give it a try if you didnt.(does not void warranty)
Contact google, they will probably send you a replacement if you dont want to mess with it that much.

Yes,data works but calls don't

I'm going to suggest a longshot here. It seems that you've gotten some good suggestions so far, so I want to throw this idea out there.
Have you "provisioned" your phone lately & updated the PRL? Meaning, have you told the phone to connect to your cellular carrier, then the carrier then tells your phone what services you are paying for & are supposed to have & what cellular towers you can use? Doing just this usually fixes all sorts of problems.
Go to Settings (the little gear icon), then More (in the Wireless & Networks). Cellular Networks, Carrier Settings. Tap on Update device config. Let it talk to the network. Tap on OK. After that, Update the PRL. Let it do it's thing. Tap on OK.
No reboot is necessary. It should be making calls, receiving calls & data should all be working.
Also, I keep the Preferred network type to global, although my carrier is CDMA & I'm in the US.

Hi dear , can't find carrier setting , I am search in the all my phone can't find it

Ctrl_Alt_Del said:
I'm going to suggest a longshot here. It seems that you've gotten some good suggestions so far, so I want to throw this idea out there.
Have you "provisioned" your phone lately & updated the PRL? Meaning, have you told the phone to connect to your cellular carrier, then the carrier then tells your phone what services you are paying for & are supposed to have & what cellular towers you can use? Doing just this usually fixes all sorts of problems.
Go to Settings (the little gear icon), then More (in the Wireless & Networks). Cellular Networks, Carrier Settings. Tap on Update device config. Let it talk to the network. Tap on OK. After that, Update the PRL. Let it do it's thing. Tap on OK.
No reboot is necessary. It should be making calls, receiving calls & data should all be working.
Also, I keep the Preferred network type to global, although my carrier is CDMA & I'm in the US.
Click to expand...
Click to collapse
Hi dear , can't find carrier setting , I am search in the all my phone can't find it

Please help me brothers..!

Ferasmn said:
Please help me brothers..!
Click to expand...
Click to collapse
Last time something like that happened to me was, when my old iPhone 6 had a blacklisted IMEI number. I could use all my data with the phone but not text or call anyone. Can you text people through SMS?

Yes I can text

Dears any solution s

Ferasmn said:
Dears any solution s
Click to expand...
Click to collapse
Really don't know either then. You said that you tried to change your preferred Network from LTE to 2g/3g but you can't? Are you always connected to LTE then? As far as i know you can't call on LTE.

my phone is also can not call and receive calls,text and 4G are still useful.It just stay in 4g and can not change to 2/3g.Hope someone can help us.

Help - Note 4 - SM-910G INU working only on 2g GSM.

UPDATE - 25/10/16 - Gave phone to Samsung Service center and they have updated me today that they found the radio is corrupted possibly so they have asked Samsung to give them a confirmation to proceed with Radio firmware reloading which includes IMEI re-coding. There's a chance of even them getting the device bricked of course but lets see what happens.
Hello all,
I have SM-N910G with latest stock rom (N910GDTS1DPI1).
Was using this phone on Reliance Jio VOLTE since end July and had set network more to LTE only (sicne RJio only has 4g LTE coverage).
Last thursday morning I noticed the phone is not registered on network and on trying to troubleshoot further by switching to a different (Vodafone) SIM, realized that the phone is only able to register on GSM (2G) networks and Edge data works too.
Have tried factory reset (and reloading of stock ROM thru ODIN including NAND erase using PIT files too) to check if I can get the phone to work on 3g/4g but no use. Seems like this is hardware issue (radio gone faulty?).
The phone is 18 months old so out of standard warranty hence I'm not much hopeful that Samsung Service center will be of any help. Before I take this there, just wanted to check if anyone else faced such issue before and have managed to sort the same out.
Cheers and thanks in advance.

udewal said:
Hello all,
I have SM-N910G with latest stock rom (N910GDTS1DPI1).
Was using this phone on Reliance Jio VOLTE since end July and had set network more to LTE only (sicne RJio only has 4g LTE coverage).
Last thursday morning I noticed the phone is not registered on network and on trying to troubleshoot further by switching to a different (Vodafone) SIM, realized that the phone is only able to register on GSM (2G) networks and Edge data works too.
Have tried factory reset (and reloading of stock ROM thru ODIN including NAND erase using PIT files too) to check if I can get the phone to work on 3g/4g but no use. Seems like this is hardware issue (radio gone faulty?).
The phone is 18 months old so out of standard warranty hence I'm not much hopeful that Samsung Service center will be of any help. Before I take this there, just wanted to check if anyone else faced such issue before and have managed to sort the same out.
Cheers and thanks in advance.
Click to expand...
Click to collapse
Check your apn settings go to settings/mobile notworks and manually edit apn for you specific carrier.

Trex888 said:
Check your apn settings go to settings/mobile notworks and manually edit apn for you specific carrier.
Click to expand...
Click to collapse
Thanks but it's not an apn issue. The phone doesn't simply register on any 3g or 4g networks. Hence the thought that it's hardware issue.

same problem
Please if you get any solution do post here
As I am facing same problem but in my case
I am getting 3g & 2g signal & data also but not
Getting 4g volte to any sim I tried apn setting
Changing hard reset also tried reinstalling firmware
But no luck
Please somebody help us out
Thanks

prasadamb said:
Please if you get any solution do post here
As I am facing same problem but in my case
I am getting 3g & 2g signal & data also but not
Getting 4g volte to any sim I tried apn setting
Changing hard reset also tried reinstalling firmware
But no luck
Please somebody help us out
Thanks
Click to expand...
Click to collapse
What do you mean by not getting Volte on any SIM? It's only for Reliance Jio. For other service providers, you need to get a 4G SIM before you can use 4G.
My phone is now dead bricked and beyond repairs as confirmed by Samsung service center. I'm not spending 15k for motherboard change.

4g
I have idea 4g sim but when I insert it
My note 4 doesn't shows it it says no sim card
Insert sim when I put Jio sim I get no service/ Jio 4g
Emergency calls only signal when I tried bsnl 3g
& Tata Docomo 3g sims both sims getting network
Signal & I can call also but when I tried to connect to internet by using these 3g sims my mobile connects and switchs off suddenly I have to pull out battery or connect to charger to start the mobile
This is my problem

prasadamb said:
I have idea 4g sim but when I insert it
My note 4 doesn't shows it it says no sim card
Insert sim when I put Jio sim I get no service/ Jio 4g
Emergency calls only signal when I tried bsnl 3g
& Tata Docomo 3g sims both sims getting network
Signal & I can call also but when I tried to connect to internet by using these 3g sims my mobile connects and switchs off suddenly I have to pull out battery or connect to charger to start the mobile
This is my problem
Click to expand...
Click to collapse
That's weird indeed. Have you ever tried any custom Roms or rooting because of which your Knox status would have tripped? In any case it's worth taking the phone to nearest samsung service center. They charge just 200 bucks to inspect the issue and another 200 to reload the software if needed. But in my case it was hardware fault so they couldn't do anything.

note 4
udewal said:
That's weird indeed. Have you ever tried any custom Roms or rooting because of which your Knox status would have tripped? In any case it's worth taking the phone to nearest samsung service center. They charge just 200 bucks to inspect the issue and another 200 to reload the software if needed. But in my case it was hardware fault so they couldn't do anything.
Click to expand...
Click to collapse
I haven't tried rooting yet and by the help of
A local mechanic who is a good friend of mine
And has a free entrance in local care center
We both went there and the care center gay
Tried to flash the mobile but no success now he says
That we should officially send the mobile to
The care center in a bigger city or like Mumbai
Where there are experts to tackle such weird problem

prasadamb said:
I haven't tried rooting yet and by the help of
A local mechanic who is a good friend of mine
And has a free entrance in local care center
We both went there and the care center gay
Tried to flash the mobile but no success now he says
That we should officially send the mobile to
The care center in a bigger city or like Mumbai
Where there are experts to tackle such weird problem
Click to expand...
Click to collapse
All the best mate. Just remember that they will ask you to sign up for Dead Brick risk which means you're OK if device goes dead during software flashing. The only way to get device working again is to replace motherboard which costs around 15k.

note 4
udewal said:
All the best mate. Just remember that they will ask you to sign up for Dead Brick risk which means you're OK if device goes dead during software flashing. The only way to get device working again is to replace motherboard which costs around 15k.
Click to expand...
Click to collapse
Thanks a lot for your advice I know that
That's why I am trying out side support
Let's see what happens
Again thanks for your cooperation mate

Hey i have the same Problem. i tried, reseting, other custom roms and much more but i dont solved the Problem.

[HELP] Can't make calls on Slot1 after oreo (Data, Msg's work)

Hi Everyone,
I've been having this issue since a week or so(after oreo). I can't make make calls if i put my Idea 4g sim on slot1. Internet and messages works fine. No issues on slot2. Will appreciate any help thanks

jashd7 said:
Hi Everyone,
I've been having this issue since a week or so(after oreo). I can't make make calls if i put my Idea 4g sim on slot1. Internet and messages works fine. No issues on slot2. Will appreciate any help thanks
Click to expand...
Click to collapse
There could be 3 possible ways.
1) Software bug
2) sim slot pin breakage
3) sim card chip problem
Identify the root cause at first.

hemanth_gunasekaran said:
There could be 3 possible ways.
1) Software bug
2) sim slot pin breakage
3) sim card chip problem
Identify the root cause at first.
Click to expand...
Click to collapse
2nd and 3rd not possible. Since data and messages are working.
Can you provide more information.
Are you on 4g network.
What type of error do you get.
Your circle.
Have you changed your network settings using *#*#4636#*#*?
Have you tried calling using 3g and 2g only?
If not choose WCDMA only (use above code). Also try with GSM only.
!dea user here since a long time(familiar with all their problems and solutions)
Please answer above all questions in as much details as you can.
Please keep in mind that it can be an software bug

alkesh95 said:
2nd and 3rd not possible. Since data and messages are working.
Can you provide more information.
Are you on 4g network.
What type of error do you get.
Your circle.
Have you changed your network settings using *#*#4636#*#*?
Have you tried calling using 3g and 2g only?
If not choose WCDMA only (use above code). Also try with GSM only.
!dea user here since a long time(familiar with all their problems and solutions)
Please answer above all questions in as much details as you can.
Please keep in mind that it can be an software bug
Click to expand...
Click to collapse
Thanks for the reply man really appreciate it
Problem solved after i used Airtel SIM in that same slot for some time. Now my idea sim is working again. Thankx

Hey.... i have same problem.....i tried 2 different airtel sim .....they are working
alkesh95 said:
2nd and 3rd not possible. Since data and messages are working.
Can you provide more information.
Are you on 4g network.
What type of error do you get.
Your circle.
Have you changed your network settings using *#*#4636#*#*?
Have you tried calling using 3g and 2g only?
If not choose WCDMA only (use above code). Also try with GSM only.
!dea user here since a long time(familiar with all their problems and solutions)
Please answer above all questions in as much details as you can.
Please keep in mind that it can be an software bug
Click to expand...
Click to collapse
Hey.... i have same problem.....i tried 2 different airtel sim .....they are working fine in sim slot 2 but having problem in making outgoing calls while placed in sim slot 1. Data network and messages working fine but no outgoing calls.
As u told about *#*#4636#*#* its shows UTMS in voice network
Please help.....sim company saying it handset problem and handset company saying it sim problem.......... my handset is xiomi redmi note 4

My sim is working but I am not messages and calls are not working.
i have updated my mi a1 in pie. now i am not able to use calling and messaging.

kk2150 said:
i have updated my mi a1 in pie. now i am not able to use calling and messaging.
Click to expand...
Click to collapse
Same problem here. Solution for now is to change to 2G network, at least for me. When I try to call with 4G preferred sometimes it work, but when it works they can't hear me and I have to scream. This Pie update have so many bugs it is ridiculous. I can't believe they put such ****ty update to the masses it seems like BETA version. In Oreo when making call phone switches from 4G to 3G instantly now in Pie switches worry slow if it even switch and the signal is so bad that the call drops and that is in places where the signal is perfect

Hi, since last 4 days i am facing same ptoblem cellular SIM in slot 1 not working for incoming and outgoing calls and outgoing sms but internet and sms service (invoming) is working perfect on 4G
When i switch it to 3G/2G it shows no signals
But when i inserted this same sim in slot 2 all things work perfect. same problem occurred even when i inserted other network sim in slot 1 (internet and sms(incoming) worked but unable to do calls) I had factory reset but problem not solved
I am using poco x3 nfc
I anyone have solution plz tell me

VoLTE or WiFi calling working on Redmi Note 7?

Using Redmi Note 7 Global version, 4G+64G, MIUI 10.3.2.0.
VoLTE
I entered *#*#86583#*#* and dialler confirms that VoLTE carrier check is disabled (test page 4636 also shows VoLTE provisioning is ON).
On different phones using same SIM, same location, I see "HD" icon confirming "HD calling", or "VoLTE" but NOT on my Note 7.
And no new android menu items about VoLTE have appeared.
So, at first glance it seems that VoLTE is not working.
HOWEVER If I make a call, the display continues to show "4G+" and data keeps streaming, so VoLTE must be working, right? or maybe not?
WiFi Calling
I entered *#*#869434#*#* and test page now confirms that WiFi calling provisioning is ON.
And yes, a new menu item appears SIM card settings, "Make calls via WiFi". (OK so far)
However when I enable WiFi and disable mobile signal with flight mode, I cannot make a call. Dialler tells me "mobile network isn't available. Connect to a wireless network to make a call".
Also if I go to an area with no mobile coverage (instead of flight mode), same error.
I believe that my carrier (Three UK) is supposed to support VoWiFi.
So is WiFi calling broken in MIUI 10.3.2.0 ?

There should be a VoLTE icon when you open the notification shade. Works well for me, even though I have the MIUI 10.3.2 EU ROM, and I had to enter the *# code in order to get it working and for the toggles to appear under SIM settings

Quaresma_7 said:
There should be a VoLTE icon when you open the notification shade. Works well for me, even though I have the MIUI 10.3.2 EU ROM, and I had to enter the *# code in order to get it working and for the toggles to appear under SIM settings
Click to expand...
Click to collapse
Thanks for the reply. Hmm yes, that's what I expected, but icon is definitely not there.
It's especially strange since I have definitely had VoLTE with the same SIM successfully on different devices.
What do you make of my phone staying on 4G during a call, does that suggest VoLTE is actually working?

If your 4G icon doesn't change into 3G (H) while in a call, I'd say VoLTE is working for you. It might be that there is something missing in the VoLTE handshake between the carrier and the phone, not passing all the checks and resulting in the phone not detecting "full VoLTE connectivity" and not showing the icon. If a call to another phone also using VoLTE starts ringing really quickly, if the sound quality is really good and your phone shows that it's connected to a 4G network, that should be it. HD or VoLTE icon or not, the functionality is there.
You said the same SIM has had VoLTE on other phones, so the carrier side should be OK. Although I suppose there might be a device whitelist on the carrier side – there sure was one when VoLTE was first introduced, as not all VoLTE-enabled devices were eligible for the service. At least that's how it was in my neck of the woods. So if all else fails, you might want to verify that with your carrier.
On the Redmi Note 7 though, as I said, it required that I enter the *# code for VoLTE. After that, the VoLTE toggle appeared under SIM and wireless settings. I can't tell if the toggle was in the "off" position when it appeared, but I'm quite sure that right after seeing or switching the toggle, I checked the status bar for a new icon, and there it was. No restart was required. You could try re-entering the code and seeing if the toggle appears (as in the screenshot).
Your profile states that you're in a brexiting location, which makes me think – do you have the Global ROM or the EU ROM? My MIUI version says PFGEUXM and VoLTE has been known to be disabled or not working in certain editions of MIUI.

I enabled VoLTE toggle and also Calling over Wi-fi but when I try to make a call it won't work saying I need to establish a cellular network connection.
Is there a way to make it work?

Rosetti said:
Is there a way to make it work?
Click to expand...
Click to collapse
Your mobile carrier needs to have VoLTE enabled on your account to make it fully work

use *#*#86583#*#* as ON/OFF switch !
===================================
use it once = it turn VoLTE "ON"
use it second time = make VoLTE "OFF".
For "Use Wi-Fi to make and receive calls" type *#*#869434#*#* once.
for turning "OFF" use the same code (*#*#869434#*#*) second time.
Easy-peasy !
(btw. I'm on MIUI Global 10.3.6, no root, original ROM)

@kljoki
I have it exactly like this. Because when it is deactivated you can't see toggle options in settings.
I am on MIUI Global 10.3.10 Stable PFGMIXM
So what am I doing wrong.
My provider O2 Telefonica is supporting Volte?

Rosetti said:
@kljoki
I have it exactly like this. Because when it is deactivated you can't see toggle options in settings.
I am on MIUI Global 10.3.10 Stable PFGMIXM
So what am I doing wrong.
My provider O2 Telefonica is supporting Volte?
Click to expand...
Click to collapse
Sorry I'm on Xiaomi Note 7 .
( I think there is no help from my side.)

Has anyone got WiFi Calling to actually work?
If so which carrier are you using?
Have the feature activated but like the other poster, I cannot make calls over WiFi (T-Mobile) made wonder if there's any additional steps needed to activate the service

Could someone already test if VoWIFI is working with the Miui11 Beta versions, plz?

After updating to miui 11.0.4 wifi calling is not working .I have redmi note 7 .Its a bug .I have already sent a report to Xiaomi and waiting for answer

ChrKar76 said:
After updating to miui 11.0.4 wifi calling is not working .I have redmi note 7 .Its a bug .I have already sent a report to Xiaomi and waiting for answer
Click to expand...
Click to collapse
Did you already get any answer or news about it ?
Derpfast-Rom is unfortunately not updated any more - had VoWifi working...

Have a feeling they disabled it on purpose to not canabalize their higher end model sales.
It's been the same story since MIUI 10.3.5

KruSan said:
Did you already get any answer or news about it ?
Derpfast-Rom is unfortunately not updated any more - had VoWifi working...
Click to expand...
Click to collapse
The latest version of crDroid have in the changelog "Enabled Wifi Calling For a lot of carriers", just in case you want to try... https://forum.xda-developers.com/showpost.php?p=81631425&postcount=617

vlouis said:
The latest version of crDroid have in the changelog "Enabled Wifi Calling For a lot of carriers", just in case you want to try... https://forum.xda-developers.com/showpost.php?p=81631425&postcount=617
Click to expand...
Click to collapse
I'm using latest crdroid with no success on this subject. BUT i use TIM Brazil carrier so i believe this is not a rom related issue, but a device+carrier issue.

VoLTE has worked great for me from the start. Had to enter the VoLTE code in the dialer to get the switch in the options to appear though.
VoWIFI - what's your motivation to use that? I have good coverage where I live and I'd rather have a real cell phone call than for it to go through my home or office wifi without QoS set up to prioritize voice calls.

is it right that vowifi doesnt work with miui 11.0.5 on my redmi note 7? VoLTE works?

Quaresma_7 said:
VoLTE has worked great for me from the start. Had to enter the VoLTE code in the dialer to get the switch in the options to appear though.
VoWIFI - what's your motivation to use that? I have good coverage where I live and I'd rather have a real cell phone call than for it to go through my home or office wifi without QoS set up to prioritize voice calls.
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Click to collapse
Unfortunately I'm just having wifi during work inside my hospital.
Means I'm not getting any calls on my mobile as a backup. Quite disappointing. :/
Update:
By a HowTo in the german android-Forum I made it possible to activate VoWifi on my Redmi Note 7 , without rooting or bootloader unlocking.
Had to delete row_commercial profile and activated Commercial MTS for Telefonica in Germany.
Works perfectly -. @Antaril

KruSan said:
Unfortunately I'm just having wifi during work inside my hospital.
Means I'm not getting any calls on my mobile as a backup. Quite disappointing. :/
Update:
By a HowTo in the german android-Forum I made it possible to activate VoWifi on my Redmi Note 7 , without rooting or bootloader unlocking.
Had to delete row_commercial profile and activated Commercial MTS for Telefonica in Germany.
Works perfectly -. @Antaril
Click to expand...
Click to collapse
Wow so you got it working?
Can you share the link to the German thread here?
I'm curious how they determined Row Commericial must be deleted.
That's what my phone defaulted to and showed as active under the Sub0 column when I connected it to PDC