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Any ROM to get VoLTE, WiFi-calling ?

Not sure if a question about ROMs is appropriate in this sub-forum, if not, hopefully a friendly moderator will move to aa questions sub-forum.
Happy with Mate 9 Pro except that there is no US ROM for it, so mine has Taiwan (C636). Therefore i do not get VoLTE or WiFi calling on my T-Mobile.
I did check a long time ago that VoLTE is seemingly simply enabled through XML config files different across different regions of the firmware, so it should be easy to create a ROM where those XML files would try to enable VoLTE for the US carrriers. Not sure if this is all thats missing though. But maybe someone has tried. Even better, someone has tried and succeeded in building a ROM that has those XML fixes.

te36 said:
Not sure if a question about ROMs is appropriate in this sub-forum, if not, hopefully a friendly moderator will move to aa questions sub-forum.
Happy with Mate 9 Pro except that there is no US ROM for it, so mine has Taiwan (C636). Therefore i do not get VoLTE or WiFi calling on my T-Mobile.
I did check a long time ago that VoLTE is seemingly simply enabled through XML config files different across different regions of the firmware, so it should be easy to create a ROM where those XML files would try to enable VoLTE for the US carrriers. Not sure if this is all thats missing though. But maybe someone has tried. Even better, someone has tried and succeeded in building a ROM that has those XML fixes.
Click to expand...
Click to collapse
same here in south africa no options for VOLTE netwwork does support it

Disregard this comment.

I accidentally got VoWi-Fi, rebranded l09 to l29c636 and then installled latest firmware from the firmware finder for huawei app( 8.0.0.362),
when booted it said my network was '3 Wi-fi calling' And it worked. delighted because i had been using a seperate app for this service but since deleted it.

I got it with my upgrade to Android 8. Device: MHA-L29C567

hs4842 said:
I got it with my upgrade to Android 8. Device: MHA-L29C567
Click to expand...
Click to collapse
What company r u using?

cejjr1 said:
What company r u using?
Click to expand...
Click to collapse
I'm on SafeLink - the Obama phone plan, AT&T Network.
And yes, I got it when I was working. Would love to get back to work and love to get a 10" Octa-Core phablet as my primary phone, and a Mate 10 or a smaller Huawei as my 'pocket' device. Sadly, entering my elder years also means entering dire medical problem years. Perhaps next Christmas I will be able to do something different and get back into the new tech.

Get volte in mate 9
Rebranded to l29c900 and now VOLTE is working for me in my mate 9..

Forced activation of VoLTE and VoWIFI of VIVO NEX

Hello XDA folks!
I succeeded in activating VoLTE with carriers that VIVO NEX does not support as standard.
I summarized the procedure, so please test it if possible.
I think Verizon will probably be available on "Volte_OpenMkt-Commercial-CMCC".
The rough procedure is as follows.
1. Enable development options, enable USB debug
2. Activate VoLTE switch
3. Enable DIAG port
4. Backing up the QCN file with QPST
5. Edit VoLTE information in QPST
Please check the link below for the detailed procedure.
・Publication of VoLTE validation method of VIVO NEX S
url gadget.hrksv.com/2018/10/06/post-17746
*The link destination is Japanese content. Please use google translation etc.
I can not check it because VoWIFI is not supported in Japan.
I think that VoWifi will probably become available as well.
Please test it.
I'm sorry for my bad English.

Thanks

Need to get the QPST software to test it out!

Do any of you think this can work on the nex 3 ? And the Japanese translation was still hard to follow, would I need to root the phone ?

Hy
I´m trying this out on my Vivo Iqoo 7, i´ve got the Vowifi sign in the notification bar but it doesn´t work at the moment.
I cant open the Network-state, when i try to open i just get a locker and Chinese letters.
Can anyone help me out?

aliensmille said:
Hy
I´m trying this out on my Vivo Iqoo 7, i´ve got the Vowifi sign in the notification bar but it doesn´t work at the moment.
I cant open the Network-state, when i try to open i just get a locker and Chinese letters.
Can anyone help me out?
Click to expand...
Click to collapse
enter the last 6 digits of IMEI 1

I'm not able to enter anything here...

aliensmille said:
I'm not able to enter anything here...
Click to expand...
Click to collapse
you have a new version of networkstate
try *#558# on your dialer
1.quality verification test
2.development
3.tick debugging port
then use qualcomm PDC to find the best profile for you, i try at least 7-8 till i find the right one for my carrier

kopap said:
you have a new version of networkstate
try *#558# on your dialer
1.quality verification test
2.development
3.tick debugging port
then use qualcomm PDC to find the best profile for you, i try at least 7-8 till i find the right one for my carrier
Click to expand...
Click to collapse
Thank you!
That works for me, will try some more profiles, on my oneplus it was working well with germany volte vodafone, not here with the Iqoo.
Edit: Unfortunately it does´t work with my iqoo 7, i tried a few different profiles but with some i just get the vowifi icon without function.

aliensmille said:
Thank you!
That works for me, will try some more profiles, on my oneplus it was working well with germany volte vodafone, not here with the Iqoo.
Edit: Unfortunately it does´t work with my iqoo 7, i tried a few different profiles but with some i just get the vowifi icon without function.
Click to expand...
Click to collapse
i am on vodafone GR, on other phones i used to use vodafone DE profile on NEX there isnt a Vodafone DE so i use telenor

kopap said:
i am on vodafone GR, on other phones i used to use vodafone DE profile on NEX there isnt a Vodafone DE so i use telenor
Click to expand...
Click to collapse
Also not working, when i try to call during Flight Mode with Vowifi sign in the notification bar i just got the message "mobile network off"
I give up :-/

flight mode wificalling dosnt work on vivo .wifi calling works only with antenas on. you can download activity manager from paly store
Activity Manager: Hidden activ - Εφαρμογές στο Google Play
Διαχείριση δραστηριοτήτων, ένα κρυφό πρόγραμμα εκτόξευσης δραστηριότητας
play.google.com
find settings on the list scroll and find wifi calling and anable always thats the way for me to have allways my calls through wifi

Volte option gone after upgrade to android 8.0oreo which was released in india 2 days

After upgrading my v20 to oreo i am unable to get volte option in my phone ,which we used to get after scrolling down the notification bar .are any of u guys facing similar issue after the upgrade.as a result i am unable to use reliance jio!! Plz tell me if u found a fix for this issue

Hello,
I'm also using Jio-India and seems like I'm getting "VoLTE" next to my network icons
Can you check Settings > Mobile Network > Jio > Network mode > Preferred network mode : "GSM/WCDMA/LTE auto"
Thanks

Somebody else also showed VoLTE working

Ya i ha e checked my settings, they are as you mentioned!
I don't know what to do cause the volte option is gone ,i can't find it anywhere.

They have removed the volte tile from quick settings. But volte works.
If still not getting volte dial *#546368#*990# and go to Field Test ->GPRI ->VoLTE/VoWiFi ->UX. Enable display_hdvoice_icon enabled there. Also in IMS menu enable VoLTE and ViLTE.

Thanks i enabled volte in ux as well as ims still i cant see volte symbol near my network bar noe i am getting the volte option in network setting

Swami123 said:
Thanks i enabled volte in ux as well as ims still i cant see volte symbol near my network bar noe i am getting the volte option in network setting
Click to expand...
Click to collapse
Whether or not you see the VoLTE symbol is Jio working normally otherwise ?

I can't call via my jio sim ,cause there is no volte option .although the internet is working i have to install jio apps for calls and messages.(which is really sad to do for volte enabled phone)

Why is it that only some of the V20 users are affected and others aren't? Is it because of a setting-Karma from the previous OS life? Can someone enlighten with the real technical reason behind the issue. Being on Jio network sans VoLTE is a disaster, without calls or SMS. You're more like using a PDA afterall.
Jio4GVoice isn't a best bet, but it's the only choice left. Lost VoLTE and tried all found tweaks including the hidden menu UX/IMS modes. Rolling back to Nougat and flashing ROMs are a pain in the a** with fewer hopes of getting it right than what it is now. If someone already found a solution to this issue, kindly post it.
PS: Taking it to the service centre to flash it back to 7 is not much of a solution, IMHO.

Are any of you able to root oreo on lg v20 Indian variant?

adriansiv said:
Are any of you able to root oreo on lg v20 Indian variant?
Click to expand...
Click to collapse
Did you flash through Lg Up or With Twrp and a flashable Rom can you be more clear the only way to root oreo is to have already unlocked bootloader flash twrp make a flashable indian oreo rom and flash magisk and mk kernel for oreo!Give more info please so i can help

daftdrift said:
Why is it that only some of the V20 users are affected and others aren't? Is it because of a setting-Karma from the previous OS life? Can someone enlighten with the real technical reason behind the issue. Being on Jio network sans VoLTE is a disaster, without calls or SMS. You're more like using a PDA afterall.
Jio4GVoice isn't a best bet, but it's the only choice left. Lost VoLTE and tried all found tweaks including the hidden menu UX/IMS modes. Rolling back to Nougat and flashing ROMs are a pain in the a** with fewer hopes of getting it right than what it is now. If someone already found a solution to this issue, kindly post it.
PS: Taking it to the service centre to flash it back to 7 is not much of a solution, IMHO.
Click to expand...
Click to collapse
Maybe tweet LG, they're the ones who caused the problem ? a further update might be in order
Otherwise a trip to the service centre might be necessary

mikekote666 said:
Did you flash through Lg Up or With Twrp and a flashable Rom can you be more clear the only way to root oreo is to have already unlocked bootloader flash twrp make a flashable indian oreo rom and flash magisk and mk kernel for oreo!Give more info please so i can help
Click to expand...
Click to collapse
i flashed through lgup and am currently on fresh 7.0 build from dec 16 security patch. This firmware is rootable and i have previously rooted it.I previously did install twrp but it is gone now as i have flashed the official firmware via lgup.
Is there a way i can flash this nougat firmware and update to Oreo or it has to be done via TWRP only ?

adriansiv said:
i flashed through lgup and am currently on fresh 7.0 build from dec 16 security patch. This firmware is rootable and i have previously rooted it.I previously did install twrp but it is gone now as i have flashed the official firmware via lgup.
Is there a way i can flash this nougat firmware and update to Oreo or it has to be done via TWRP only ?
Click to expand...
Click to collapse
Yes you can!
1.)Use Dirty Santa Again so you can get TWRP again going and update it to the latest available version.
2.)Download a Flashable Android Oreo Rom from the Rom and Kernels Section download Latest mk 2000 kernel for oreo....
3.)You know the flashing process
Good Luck if you dont understand something just tell me

QSM (Quick Shortcut Maker) App might tweak you back to VoLTE
This suggestion that was found in Reddit brought back the lost (disabled) VoLTE feature on my phone. Download the QuickShortcutMaker app from PlayStore.
"You can download the QuickShortcutMaker app from the Play Store.
In the QSM app, search for 'Advanced Calling'. Press the down arrow next to 'Settings' in the list. Mine had 2 options. The first is 'AdvancedCalling' and other is 'AdvancedCallingSwitch'.
Choose one, and click 'Try it'."
Unsure if Forum rules prevent posting an external link, and hence, avoiding it. The above quoted text is by the reddit OP.
---------- Post added at 06:02 PM ---------- Previous post was at 05:58 PM ----------
One Twelve said:
Maybe tweet LG, they're the ones who caused the problem ? a further update might be in order
Otherwise a trip to the service centre might be necessary
Click to expand...
Click to collapse
I did tweet, and they suggested me the latter. Anyway, I've got the thing working now after that tweak. No thanks to LG support, but reddit.

Swami123 said:
After upgrading my v20 to oreo i am unable to get volte option in my phone ,which we used to get after scrolling down the notification bar .are any of u guys facing similar issue after the upgrade.as a result i am unable to use reliance jio!! Plz tell me if u found a fix for this issue
Click to expand...
Click to collapse
On my US996...
*#*#4636#*#*
Phone Information
Enable VoLTE

daftdrift said:
This suggestion that was found in Reddit brought back the lost (disabled) VoLTE feature on my phone. Download the QuickShortcutMaker app from PlayStore.
"You can download the QuickShortcutMaker app from the Play Store.
In the QSM app, search for 'Advanced Calling'. Press the down arrow next to 'Settings' in the list. Mine had 2 options. The first is 'AdvancedCalling' and other is 'AdvancedCallingSwitch'.
Choose one, and click 'Try it'."
Unsure if Forum rules prevent posting an external link, and hence, avoiding it. The above quoted text is by the reddit OP.
---------- Post added at 06:02 PM ---------- Previous post was at 05:58 PM ----------
I did tweet, and they suggested me the latter. Anyway, I've got the thing working now after that tweak. No thanks to LG support, but reddit.
Click to expand...
Click to collapse
Glad this was sorted out :good:
I've used that same app to create an icon on my home screen to switch between 2,3 & 4G

daftdrift said:
This suggestion that was found in Reddit brought back the lost (disabled) VoLTE feature on my phone. Download the QuickShortcutMaker app from PlayStore.
"You can download the QuickShortcutMaker app from the Play Store.
In the QSM app, search for 'Advanced Calling'. Press the down arrow next to 'Settings' in the list. Mine had 2 options. The first is 'AdvancedCalling' and other is 'AdvancedCallingSwitch'.
Choose one, and click 'Try it'."
Unsure if Forum rules prevent posting an external link, and hence, avoiding it. The above quoted text is by the reddit OP.
---------- Post added at 06:02 PM ---------- Previous post was at 05:58 PM ----------
I did tweet, and they suggested me the latter. Anyway, I've got the thing working now after that tweak. No thanks to LG support, but reddit.
Click to expand...
Click to collapse
This worked in my V20. Thanks! I had given up after calling Jio Customer care many times. I thought this was due to them, when it was, infact due to Oreo update.

zero_zerodegree said:
Hello,
I'm also using Jio-India and seems like I'm getting "VoLTE" next to my network icons
Can you check Settings > Mobile Network > Jio > Network mode > Preferred network mode : "GSM/WCDMA/LTE auto"
Thanks
Click to expand...
Click to collapse
I'm using LG V20 H915 my settings is just as yours and I'm unable to receive VoLTE. Because of this I got to use Jio4call app which is very annoying and consumes a lot of battery. Need help please!

No VOLTE Android 11

I have tried 3 different roms & one MIUI on Android 11 and have no VOLTE.
On android 10 I it worked when I was on EvoX & MIUI it worked out of the box.
My carrier is Telstra. - Apparently other Australian carriers have it volte on 11.
Has anyone else had this issue? I have tried to use some props to enable it but no joy.

I'm using the Xiaomi.eu Weekly - and have VoLTE and VoWiFi working after using the disable carrier check codes on Boost (Telstra). I had been using the Indonesian ROM on Android 10 and it worked really well, but when the update to Android 11 came out - I updated and experienced a few issues that I wasn't happy with.
Changed over to Xiaomi.eu Weekly about 2 weeks ago and quite happy with the phone again. I must say though that I see VoLTE working less often than it did before, if that makes sense... sometimes I need to reboot to get it working again etc. Very happy that VoWiFi is working though, as Telstra reception is horrible where I'm living...

i had this p[roblem but i solved flasing an europe version instead global but that doesnt apply to u coz u arent in europ. try to talk with call center from ur network for reseting volte and vowifi and try again other version roms, miui, aosp, evriting...if dont work, sell ur fon

jbm76 said:
I have tried 3 different roms & one MIUI on Android 11 and have no VOLTE.
On android 10 I it worked when I was on EvoX & MIUI it worked out of the box.
My carrier is Telstra. - Apparently other Australian carriers have it volte on 11.
Has anyone else had this issue? I have tried to use some props to enable it but no joy.
Click to expand...
Click to collapse
Same here!
After disabling VoLTE carrier check on Mi Note 10, VoLTE was working fine on Android 10 with Boost (Telstra). Updated to 12.1.2.0 with Android 11 and VoLTE disappeared for Telstra, but VoLTE is still on with Android 11 and Vodafone SIM.
I had to unlock my bootloader with Mi Unlock (wait 10 days) and downgrade to Android 10 Global ROM to get VoLTE to work again.

alexche11 said:
Same here!
After disabling VoLTE carrier check on Mi Note 10, VoLTE was working fine on Android 10 with Boost (Telstra). Updated to 12.1.2.0 with Android 11 and VoLTE disappeared for Telstra, but VoLTE is still on with Android 11 and Vodafone SIM.
I had to unlock my bootloader with Mi Unlock (wait 10 days) and downgrade to Android 10 Global ROM to get VoLTE to work again.
Click to expand...
Click to collapse
My bootloader is unlocked already - I'm going flash Crdroid a10 Rom - I've been trying to get the phone in diag mode with the phone to checkout the NV items with EFS explorer in QPST configuration - I might return to stock to see if it will work there because it's not working on AOSP.
I want to compare android 10 vs android 11
Mi 10 & Mi10 pro are also having the same issue with VoLTE using Telstra on A11.
jelreyn said:
I'm using the Xiaomi.eu Weekly - and have VoLTE and VoWiFi working after using the disable carrier check codes on Boost (Telstra). I had been using the Indonesian ROM on Android 10 and it worked really well, but when the update to Android 11 came out - I updated and experienced a few issues that I wasn't happy with.
Changed over to Xiaomi.eu Weekly about 2 weeks ago and quite happy with the phone again. I must say though that I see VoLTE working less often than it did before, if that makes sense... sometimes I need to reboot to get it working again etc. Very happy that VoWiFi is working though, as Telstra reception is horrible where I'm living...
Click to expand...
Click to collapse
What happened with the Indo firmware on a11?
So Volte works sometimes and other times not? Please explain your findings?
Perhaps I might try the eu Roms and see if they work with diag mode.
dantk said:
i had this p[roblem but i solved flasing an europe version instead global but that doesnt apply to u coz u arent in europ. try to talk with call center from ur network for reseting volte and vowifi and try again other version roms, miui, aosp, evriting...if dont work, sell ur fon
Click to expand...
Click to collapse
I was thinking about trying an asian firmware also
If you guys try to get into diag mode - perhaps we can put our heads together to figure it out.
diag mode / QPST functionality??
I have been trying to get my POCO F2 into diag mode so I can use it with QPST. Has anyone tried to do this and was successful? I'm currently on AOSP so I'm not entirely sure if you have to be on stock for this to work. I google searched not...
forum.xda-developers.com

jelreyn said:
Changed over to Xiaomi.eu Weekly about 2 weeks ago
Click to expand...
Click to collapse
I flashed it, didn't have VOLTE at all!

jbm76 said:
I flashed it, didn't have VOLTE at all!
Click to expand...
Click to collapse
Sorry, it was working on an older weekly - but I lost both VoLTE and VoWiFi last week when I updated... and I couldn't get the very latest weekly to install at all this time around... but that's another issue entirely.
I'm considering going back to Android 10 Indonesian ROM... things were much simpler then! And everything worked...

jelreyn said:
Sorry, it was working on an older weekly - but I lost both VoLTE and VoWiFi last week when I updated... and I couldn't get the very latest weekly to install at all this time around... but that's another issue entirely.
I'm considering going back to Android 10 Indonesian ROM... things were much simpler then! And everything worked...
Click to expand...
Click to collapse
I flashed crdriod Android 10 and have volte again.

I ended up using Xiaomi.eu 12.0.8 - which I read was the last version of Android 10. Works fine.
Hope they fix up the VoLTE sometime for the Android 11+ versions for Telstra network users, like me...

Firmware Issue VOLTE Android 11 - ims_user_agent
Since Android 11 - VOLTE fails to work my carrier (Telstra AU) which worked perfectly on AOSP and MIUI with codes. These below setprop commands require root. And require these drivers or the qualcomm one atleast...
forum.xda-developers.com
The Telstra mbn is fine, it's a bug in the firmware with ims_user_agent.
More in the above link..

O2 Germany - VoWifi

Hi guys,
still in love with my mix2s but I need vowifi for reachability.
Does anyone have experience with new ROM and ability to use vowifi ? I tried Experience, LOS and Evolution. vowifi is enabled, but doesn´t work. SIM is ok, works with vowifi in an iphone.
Do I need to do an firmware upgrade? Any hints or suggestions?
thx in advance
vwsony

Hi vwsony,
vwsony said:
still in love with my mix2s but I need vowifi for reachability.
Does anyone have experience with new ROM and ability to use vowifi ? I tried Experience, LOS and Evolution. vowifi is enabled, but doesn´t work. SIM is ok, works with vowifi in an iphone.
Do I need to do an firmware upgrade? Any hints or suggestions?
Click to expand...
Click to collapse
See here what I did (also on O2 DE), - it's for LOS 17.1 but applies more or less to 18.1 and probably other Android 11-based ROMs. With LOS 18.1 it seemed to be even more fiddly than before, I had to try several sys.usb.config options before being able to write to vendor. But somehow it worked in the end.
IUC, it's basically an error in Xiaomi's firmware that auto-selects wrong settings for O2 DE - forcing it to use the settings for DT Greece seems to do the trick. There are lots of threads about it, the problem seems to be ROM-independent and concerns (or has concerned?) MIUI as well.
Viel Erfolg!