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[Guide]Enable VoLTE forcefully if Its not activated by default

As Title Speaks, Here is Little Workground for Enable VoLTE for OP6
Limitations :-
1. Sim Must be 4G Enabled.
2. You must Live under VoLTE Enabled Circle.
3.
Steps :-
1. Open Dialer
2. type USSD code *#*#4636#*#*
3. Select phone information
4. Now select Network type *LTE/UMTS auto(PRL)
5. Reboot..
6. Done
Go in Settings
Check if Both sim have VoLTE option Enabled
Also enable Data Roaming
Hope you get VoLTE..
I got VoLTE this way.. So just sharing..
Now Here is Bug with Vodafone VoLTE, when Trying to call, Network get bounced to 2G network.. It's Bug & Already reported to OnePlus..
If you still can't get VoLTE, Wait for Update.. ??

Doesn't work for me, no volte option under both sim settings and phone info switches back, TD-SCDMA/CDMA/UMTS

neo387 said:
Doesn't work for me, no volte option under both sim settings and phone info switches back, TD-SCDMA/CDMA/UMTS
Click to expand...
Click to collapse
There should be VoLTE option for your sim..
If no, There is many chances that your SIM maybe not 4G ready or your circle don't have VoLTE feature..

neo387 said:
Doesn't work for me, no volte option under both sim settings and phone info switches back, TD-SCDMA/CDMA/UMTS
Click to expand...
Click to collapse
Needs root but the only way I got it to work here is with the magisk module.

Ya, don't go playing with the band selection, or you may just get dropped to 2g connection with no LTE possible.
After digging around, I found a fix to get LTE back.
Download the "Network Signal Guru" app from the Play Store.
I told it to "Clear Forcings" in the menu, and LTE is back up.

Cantn find The Module can You give some more Informationen?

This won't work in Europe at least, no matter how Volte ready is your network/SIM card. OnePlus just ignores the issue.

This method https://forum.xda-developers.com/on...-volte-vowifi-german-carriers-t3817542/page28 works for activating VoLTE if your operator had enabled it for you.
I tried the method in the current post, but only got the toggles in the menu and not the real thing.
Had to call the mobile operator (Telenor BG, Bulgaria) to ask them to activate VoLTE and then did the method in the linked post.
I have a non-rooted OP6 and I'm now effectively using VoLTE on my network. Hope that helps.

Hmmm, does anybody know which was the previous default setting? I would like to revert it back and don't remember what setting was set before...

fourcc said:
hmmm, does anybody know which was the previous default setting? I would like to revert it back and don't remember what setting was set before...
Click to expand...
Click to collapse
td-scdma / cdma / umts

CYB3R0ID694 said:
As Title Speaks, Here is Little Workground for Enable VoLTE for OP6
Limitations :-
1. Sim Must be 4G Enabled.
2. You must Live under VoLTE Enabled Circle.
3.
Steps :-
1. Open Dialer
2. type USSD code *#*#4636#*#*
3. Select phone information
4. Now select Network type *LTE/UMTS auto(PRL)
5. Reboot..
6. Done
Go in Settings
Check if Both sim have VoLTE option Enabled
Also enable Data Roaming
Hope you get VoLTE..
I got VoLTE this way.. So just sharing..
Now Here is Bug with Vodafone VoLTE, when Trying to call, Network get bounced to 2G network.. It's Bug & Already reported to OnePlus..
If you still can't get VoLTE, Wait for Update.. ??
Click to expand...
Click to collapse
It doesn't work with Kuwait Viva !

If you want to get VoLTE and VoWiFi menu under SIM options in your OP6 just type *#800# in default dialer (not working in ther dialers) and under oneplus logkit>Function switch there is VoLTE and VoWiFi switch This is only to have that switch visible in menu so it isnt a guarantee that VoLTE will work on your device because your network carrier must support it and if it is not supported by carrier then VoLTE will not work no matter if you enable it with menu switch

Follow my Guide to activate VoLTE and VoWiFi for OnePlus 6...

is there a way to fix volte on pie beta 1?
I was using VoLTE-OEM-Lab on 5.1.11

jamal2367 said:
Follow my Guide to activate VoLTE and VoWiFi for OnePlus 6...
Click to expand...
Click to collapse
Thanks, I used your guide and was able to enable VoLTE for my Vodafone.de LTE contract, my second card is from Sparhandy which is also I believe Vodafone but without LTE/4G, unfortunately VoWIFI is not showing up, I confirmed with Vodafone/LTE contract that it is enabled and it is, any suggestions?
TIA

somebody knows how to set up VoLTE on OOS9 ?
"Enhanced networking" missing for me

No one in Pie tried to set up VoLTE

VoLTE and VoWiFi just work, what setting up needs done?
---------- Post added at 08:17 AM ---------- Previous post was at 08:15 AM ----------
jabs said:
somebody knows how to set up VoLTE on OOS9 ?
"Enhanced networking" missing for me
Click to expand...
Click to collapse
Go to "Phone", Settings, SIM & Network Settings, then in to the SIM you want, and the VoLTE and WiFi calling is in there. It's NOT in the traditional Settings app.

jabs said:
No one in Pie tried to set up VoLTE
Click to expand...
Click to collapse
jamal2367's method (see here in English: https://forum.xda-developers.com/oneplus-5t/how-to/guide-volte-vowifi-german-carriers-t3817542) works fine with OOS9/Pie.
Just updated & patched modem config with PDC as described in the link (I'm using the config "Telefonica_UK_Commercial" for O2 in Germany) and I'm up again with VoLTE/VoWifi working..
Still a shame that Oneplus is incapable to do enable the right config by default..

but it is just that in OOS9 you miss those switches what were in OOS5.11 in "Enhanced networking, this group is all missing in Pie

volte and wifi calliing

hi was wondering if there is any way how to enable volte and wifi calling? im using tmobile i dont see volte anywhere without root if possible for now?
Thanks

raven213 said:
hi was wondering if there is any way how to enable volte and wifi calling? im using tmobile i dont see volte anywhere without root if possible for now?
Thanks
Click to expand...
Click to collapse
VOLTE should work out of the box.

raven213 said:
hi was wondering if there is any way how to enable volte and wifi calling? im using tmobile i dont see volte anywhere without root if possible for now?
Thanks
Click to expand...
Click to collapse
Have you tried, *#*#86583#*#, to see if that works for you?

jcsww said:
Have you tried, *#*#86583#*#, to see if that works for you?
Click to expand...
Click to collapse
yeah i just dont see volte on my phone lol plus when i make a call it changes to 4g

raven213 said:
yeah i just dont see volte on my phone lol plus when i make a call it changes to 4g
Click to expand...
Click to collapse
4G is technically LTE. The Xiaomi firmware doesn't seem to have an LTE icon, at least not that I have seen. 4G and 4G+ are LTE and LTE-A.

jcsww said:
4G is technically LTE. The Xiaomi firmware doesn't seem to have an LTE icon, at least not that I have seen. 4G and 4G+ are LTE and LTE-A.
Click to expand...
Click to collapse
thanks for the info

After the *#*#86583#*#, try going into Mobile & Networks, and select your SIM card. There should be a VoLTE enabled option now. This option didn't show up for me until I did that and then I had to turn it on.
There's now a tiny VoLTE icon in the notification bar and when I'm on a call, it stays there.

Try code *#*#869434*#*# to disable VoWIFI check. And check if it working on T-Mobile.
I don't have Tmobile to check it.

mohanparvatham said:
Try code *#*#869434*#*# to disable VoWIFI check. And check if it working on T-Mobile.
I don't have Tmobile to check it.
Click to expand...
Click to collapse
No, VoWifi doesn't work on t mobile

What ROM's have people tried for WiFi Calling? Does the OP refer to T-Mobile in the UK/EU or USA? The Global Stable seems to have some less features compared to the Chinese Stable. I had Advanced Messaging working in the default text app when I was on Chinese Stable by doing nothing but it does not seem to work on the Global Stable.

got volte working on tmobile US just not wifi calling but its fine

raven213 said:
got volte working on tmobile US just not wifi calling but its fine
Click to expand...
Click to collapse
Which ROM is your device using? I really want to flash my green one back to the Chinese Stable. Global Stable just isn't as good in my opinion.

jcsww said:
Which ROM is your device using? I really want to flash my green one back to the Chinese Stable. Global Stable just isn't as good in my opinion.
Click to expand...
Click to collapse
Eu global the lastest one 10.2.2.0

Ever find a solution to this? I am on MIUI Global 10.3 (Stable) and am able to turn off Mobile data( T Mobile is my carrier in U.S.) and with my WiFi on the device i can still make and receive phone calls. In this configuration i obviously still see my WiFi symbol in the Notification bar as well as the VoLTE symbol. Don't know if this will help you at all, but it is some stuff i have noticed recently when i was trying to figure out why T-Mobile apps dont work on my Mi Mix 3.
With WiFi turned off and Mobile Data turned on i am able to make phone calls(obviously) with VoLTE and am able to see the LTE+ symbol in the Notification bar as well.
If i go to About Phone --> Tap "Internal Storage" 4 time(brings you to the Testing Menu) and looking into the Phone Info i see the following...
Set Preferred Network Type: LTE/TD-SCDMA/UMTS
Mobile Radio Power: On
VoLTE Provisioned: Off
Video Calling Provisioned: Off
WiFi Calling Provisioned: Off
EAB/Presence Provisioned: Off
When i bring this menu up on my previous phone(LG G7 ThinQ) i see that the Preferred Network type was different...so i changed my Mi Mix 3 just to match to see how it would change
My LG G7(without a SIM inserted) shows the following
Set Preferred Network Type: LTE/UMTS auto (PRL)
Mobile Radio Power: On
VoLTE Provisioned: On
Video Calling Provisioned: On
WiFi Calling Provisioned: On
EAB/Presence Provisioned: Off
Changing the network type on my Mi Mix 3 didnt do much, however when i changed it LTE/CDMA/UMTS auto(PRL) the VoLTE Provisioned and Video Calling Provisioned both switched to "On".
I dont quite understand this so for the most part i have just left it to match my LG's setting since i can change the network type back to LTE/UMTS auto(PRL) after and the settings stay set to "On"
Made a few test phone calls after with WiFi on and off, everything seems to work just fine regardless of what the phone displays.

[email protected] said:
Ever find a solution to this? I am on MIUI Global 10.3 (Stable) and am able to turn off Mobile data( T Mobile is my carrier in U.S.) and with my WiFi on the device i can still make and receive phone calls. In this configuration i obviously still see my WiFi symbol in the Notification bar as well as the VoLTE symbol. Don't know if this will help you at all, but it is some stuff i have noticed recently when i was trying to figure out why T-Mobile apps dont work on my Mi Mix 3.
With WiFi turned off and Mobile Data turned on i am able to make phone calls(obviously) with VoLTE and am able to see the LTE+ symbol in the Notification bar as well.
If i go to About Phone --> Tap "Internal Storage" 4 time(brings you to the Testing Menu) and looking into the Phone Info i see the following...
Set Preferred Network Type: LTE/TD-SCDMA/UMTS
Mobile Radio Power: On
VoLTE Provisioned: Off
Video Calling Provisioned: Off
WiFi Calling Provisioned: Off
EAB/Presence Provisioned: Off
When i bring this menu up on my previous phone(LG G7 ThinQ) i see that the Preferred Network type was different...so i changed my Mi Mix 3 just to match to see how it would change
My LG G7(without a SIM inserted) shows the following
Set Preferred Network Type: LTE/UMTS auto (PRL)
Mobile Radio Power: On
VoLTE Provisioned: On
Video Calling Provisioned: On
WiFi Calling Provisioned: On
EAB/Presence Provisioned: Off
Changing the network type on my Mi Mix 3 didnt do much, however when i changed it LTE/CDMA/UMTS auto(PRL) the VoLTE Provisioned and Video Calling Provisioned both switched to "On".
I dont quite understand this so for the most part i have just left it to match my LG's setting since i can change the network type back to LTE/UMTS auto(PRL) after and the settings stay set to "On"
Made a few test phone calls after with WiFi on and off, everything seems to work just fine regardless of what the phone displays.
Click to expand...
Click to collapse
Put the device in airplane mode, then turn on WiFi. Can you make calls? I can't! Turning on WiFi and enabling WiFi Calling doesn't mean the calls are going over WiFi. Especially if you are still seeing VoLTE or any time of mobile network connection.
Edit: Go down to the very bottom, hit more, hit IMS status, and see what it says.

Yeah I looked at the IMIS before, voice over wifi has always(I assume) said not unavailable

[email protected] said:
Yeah I looked at the IMIS before, voice over wifi has always(I assume) said not unavailable
Click to expand...
Click to collapse
No access to the IMS settimgs is more than likely why we can't get it working. We cam't see the settings to even compare them to what they should be.

I am on MIUI Global 10.3 (Stable) / Chinese Device / T-Mobile Germany.
VoWiFi as well as VoLTE are working on my device, however you need root access to enable the VoWiFi profile.
Once it is working you will see the WiFi calling icon in the status bar.
I was following this guide to enable WiFi calling on the Mi Mix 3:
https://forum.xda-developers.com/poco-f1/how-to/guide-activate-vowifi-wlan-call-t3871263
I don't know if the mentioned profile will work in other countries as well but maybe someone with more insight can shed some light into this.
I remember that VoLTE was working out of the box, you just have to disable the carrier check with the USSD code to make it available in settings.
VoWiFi can be enabled via USSD code as well, however even after changing the setting to enabled and preferred WiFi calling it does not register without the profile change.
VoLTE: *#*#86583#*#*
VoWiFi: *#*#869434#*#*
I had to redo the profile change after each upgrade with TWRP, since the firmware partitions get updated as well.
I hope this will help. :fingers-crossed:

I have Mix 3 with U.S T-Mobile service. After disabling the VoWiFi check with *#*#869434#*#*, the option for WiFi calling check box appears under the T-Mobile SIM section, but WiFi calling is not working when tested under airplane mode with WiFi enabled.

Vowifi works fine on MTS (Russia). All you need:
1. Activate vowifi service from the operator
2. Disable service check by command: *#*#869434#*#*
3. Create folder into: /system_root/system/priv-app/MBNLoader
4. Copy into this folder APK: MBNLoader.apk (View attachment MBNLoader.apk
5. Give right privileges: -rw-r--r--
6. Reboot phone
7. Install from play market QuickshortcutMaker: https://play.google.com/store/apps/details?id=com.sika524.android.quickshortcut
8. Open it and go to tab apps
9. Find Modem Config
10. Open it (tap) and you will see a lot of MCFG Modem configs.
11. Try one by one to start vowifi working
12. Enjoy!
Screenshots:

volte and 4g icons in status bar

Hello guys,
Now from what i know about this phone it is dual 4G and i have it enabled in developer options.
I also have volte service activated from operators on both sims, but only one sim displays the volte option and 4G icon in status bar. I have tried switching the sims and then volte/4G icon appears only for sim 2.
According to Network cell info software i have 4G/4G+ on both sims and Data Network is lte for both, so in theory both sims have volte and 4G enabled, but it displays only for one operator.
My question here is if anyone has volte/4G icons for both sims in status bar and if you can share a snip as proof.
Thanks.

Only works in Sim 2 for me, see attached screenshot.

At least you have 4G for both. Mine only shows 4G on the active data sim only.
Would appreciate if anyone posts a snip with both 4G/volte for both sims. i have a ticket opened at Huawei and want to give them an example that on how it should display.

I will show you tomorrow with 2 simms from Orange and Digi Romania.
Take in consideration that here Vodafone has VoLTE without showing a VoLTE icon on any phone. On Vodafone I can not switch off the VoLTE because is no slider/option on network menu. They activate VoLTE from their server so if I want to deactivate it I have to call them. You can verify if you are in the same situation as follow:
- keep data mobile on this sim (no WiFi).
- Network 4G
- initiate a phone call
If remains in 4G means you have VoLte activated but no icon (carrier option). If commute in 3G means you don't have VoLte activated
I will change the Vodafone Sim with Digi one to see 2 icons.
LE: Orange Romania + Digi Romania

Hi,
Ok, I can understand the volte icon is carrier dependent on Vodafone, but what about the 4G icon? For me it only shows 4G icon on the sim where I have data active only. Check attached pics.
And yes, I know about the test you mentioned and yes, it stays as 4G during a call. I know I have the option active(since for vowifi I get icons on both Orange and Vodafone) and I checked with Network Cell Info program and it says Voice Network is lte on both sims.

WishToLive said:
Hi,
Ok, I can understand the volte icon is carrier dependent on Vodafone, but what about the 4G icon? For me it only shows 4G icon on the sim where I have data active only.
Click to expand...
Click to collapse
You have to use Tweaker for Huawei.
View attachment 5015499View attachment 5015501
Apply and restart.
LE You can ask also here: https://forum.softpedia.com/topic/1148606-huawei-mate-30mate-30-pro/

Thx for the tweak tip.
@Sathelp : did you use the tweaker to get the 4G icons on both sims? Or maybe you see both because the phone is 5G model..

No, I hacked to get the VoLTE working (search for my thread) but the 4g is standard, sim one is Sky (O2) and sim 2 is EE (UK) . I have reasonable signal levels.

badmania98 said:
You have to use Tweaker for Huawei.
View attachment 5015499View attachment 5015501
Apply and restart.
LE You can ask also here: https://forum.softpedia.com/topic/1148606-huawei-mate-30mate-30-pro/
Click to expand...
Click to collapse
You must be root-user to apply changes.

luisvalino said:
You must be root-user to apply changes.
Click to expand...
Click to collapse
No, you don't. My M30P it is not rooted.

badmania98 said:
No, you don't. My M30P it is not rooted.
Click to expand...
Click to collapse
And with that app what that you get?
Can I make VoLTE calls or enable the VoLTE icon in the Mate 30 Pro's internal menu?

luisvalino said:
And with that app what that you get?
Can I make VoLTE calls or enable the VoLTE icon in the Mate 30 Pro's internal menu?
Click to expand...
Click to collapse
Follow the discution from the beginning. In this case, you can enable the network icon on the second Sim.

To be honest it asks me for root also to enable 4G icon on second sim. No idea why it works for you.

It asks because some functions need that. Not this one. It is better to try it. It is easy to do it.

I found the setting to display the 4G icon on both sims with SetEdit:
isShowNetworkType to be changed to 1

Sure. The same thing, different app. No root needed?

Question 2G on A13

Can anyone who has already upgraded a Pixel 6a to A13 tell me if the "Allow 2G" option is still available in Settings-->Networks-->SIMs ?
Some people on twitter are saying that they cannot set 2G as a "preferred" network anymore, not sure what it implies.

The option is still here yes. However, you can't set 2G as the preferred network type.

Try this..
Open Dialer
type :- *#*#4636#*#*
Click on Phone info
Select Preferred Network type & Scroll Down & select "GSM Only"

Thank you guys.
Current situation is bizarre for me. I need 2G working for voice only. My carrier is switching 3G off, and I cannot have VoLTE working (despite the corresponding option being enabled and carrier saying that it should work). Currently, when I make a phone call, the 4G data connection gets disabled and voice travels over 3G or 2G. When the phone call is over, 4G data connection gets back on. Since 3G is being switched off, if 2G suddenly became totally unavailable, I simply couldn't make phone calls anymore.

septimvs80 said:
Thank you guys.
Current situation is bizarre for me. I need 2G working for voice only. My carrier is switching 3G off, and I cannot have VoLTE working (despite the corresponding option being enabled and carrier saying that it should work). Currently, when I make a phone call, the 4G data connection gets disabled and voice travels over 3G or 2G. When the phone call is over, 4G data connection gets back on. Since 3G is being switched off, if 2G suddenly became totally unavailable, I simply couldn't make phone calls anymore.
Click to expand...
Click to collapse
I believe you can get a number with Google Voice, and call thru the app. I haven't used it in a while tho.

for toggle option is enable for 3G and 44, in Android 12 was 2G, 3G amd 4G
fix
type :- *#*#4636#*#*
Click on Phone info
Select Preferred Network type & Scroll Down & select "GSM Only"
is working
is any chance for fix this issue ?

htw1 said:
for toggle option is enable for 3G and 44, in Android 12 was 2G, 3G amd 4G
fix
type :- *#*#4636#*#*
Click on Phone info
Select Preferred Network type & Scroll Down & select "GSM Only"
is working
is any chance for fix this issue ?
Click to expand...
Click to collapse
Are you not seeing this? Or are we talking about something different?

Yes, indeed.

htw1 said:
Yes, indeed.
Click to expand...
Click to collapse
Indeed youre not seeing this option?

ctfrommn said:
Indeed youre not seeing this option?
Click to expand...
Click to collapse
After update to Android 13
1

htw1 said:
After update to Android 13
1
Click to expand...
Click to collapse
Thats very odd....how did you get to A13?

via OTA, my system said you have new update. Google Pixel 4a

htw1 said:
via OTA, my system said you have new update. Google Pixel 4a
Click to expand...
Click to collapse
Well, this is a Pixel 6a thread so not sure if the 4a had other changes. You might check on that forum instead/as well.

This is mine, Pixel 6a with A13

Meloferz said:
This is mine, Pixel 6a with A13
View attachment 5697095
Click to expand...
Click to collapse
Very interesting....I just did a full wipe, clean flash to A13. Nothing special and I changed nothing.

ctfrommn said:
Very interesting....I just did a full wipe, clean flash to A13. Nothing special and I changed nothing.
Click to expand...
Click to collapse
I think that probably depends on the carrier, because with my other carrier I have this options:
5G appears now, but I just guessing

Meloferz said:
I think that probably depends on the carrier, because with my other carrier I have this options:
View attachment 5697117
5G appears now, but I just guessing
Click to expand...
Click to collapse
Probably, yeah.

CYB3R0ID694 said:
Try this..
Open Dialer
type :- *#*#4636#*#*
Click on Phone info
Select Preferred Network type & Scroll Down & select "GSM Only"
Click to expand...
Click to collapse
Any chance of automating this with tasker?
I used "Toggle Network Type" app on earlier android, but not it can't set 2G as preferred type anymore.
Edit: actually it was Automate app that I used, but neither it nor Toggle network type work.

Not sure if you have tried enabling this option in the SIM settings (something to do with the Tensor Security settings as Google deem 2G to be less secure.

MrUrgit said:
Not sure if you have tried enabling this option in the SIM settings (something to do with the Tensor Security settings as Google deem 2G to be less secure.
Click to expand...
Click to collapse
I didn't, because I don't have it. I'm actually on a different phone and rom, and just trying to find a workaround, this is the closest thread to my problem that I found on xda. I'm using Samsung S8, and this rom: https://forum.xda-developers.com/t/rom-13-crdroid-android-9-x-for-samsung-galaxy-s8-s8-n8.4516883/

Question Switch mobile data automatically during call

In pixel 7 pro, Can we Switch mobile data automatically during call so that data is active during call.
This was available in oneplus

Hmm, I anyways lost connectivity with my OnePlus phones are well when in call...

What country are you in? Possibly carrier-related. With US Verizon this isn't an issue. When I was roaming in another country this issue popped up.

Interesting. I'm in Greece. There used to be a time that connection didn't go down but I never figured out the specifics of why.

9840698760 said:
In pixel 7 pro, Can we Switch mobile data automatically during call so that data is active during call.
Click to expand...
Click to collapse
krakout said:
There used to be a time that connection didn't go down but I never figured out the specifics of why.
Click to expand...
Click to collapse
Are you sure that you're not referring to VoLTE?
If 3G is shut off on your network and you don't have VoLTE then you call with 2G
2G doesn't permit data session with a call going on

Really not sure. All providers here support VoLTE but not sure how to check it. I think there used to be an OOS version that showed an indication for such calls but I then lost it.

9840698760 said:
In pixel 7 pro, Can we Switch mobile data automatically during call so that data is active during call.
This was available in oneplus
Click to expand...
Click to collapse
All you need to do is to go to Network and Internet - SIMs - VoLTE (turn it on) & Preferred network type ( set it to LTE or 5G).