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Anyone managed to get VoLTE working on EE S6? Whats needs to get volte working?

Has anyone managed to get VoLTE working on EE UK network on the S6? The current and very old EE firmware doesnt have it enabled.
I believe you need to have the options for VoLTE enabled in the config file and also have the EE EVR CSC code for Volte to work, is that correct?

You also have to rely on EE to actually get it working. It's been up and down for a few weeks now.
The official word is so long as you bought your phone from an EE shop it'll work when they activate it. However, I have had it working fine on an EE 920F(EVR) with a BTU rom, and I know of another member who has had it working on a BTU bought from cpw.
Marshmallow (6.0.1) is definitely needed. Once it's solidly active I'll make my working csc files available for download.

Excellent thanks. I believe you need an new APN as well to get VoLTE? I read about S7 people having a new one called IMS. Do you have th APN settings for this IMS APN?
Thanks.

I have the settings for the new apn too
Sent from my zerolte using XDA Labs

Turns out I don't have true VoLTE. It's working more like Wifi Calling over LTE. Has the same result, as in it stays on 4G/LTE for any call I make (essentially the same job).
If you want the details I can post them for you, but bear in mind I'm running a custom ROM that makes my phone think it's a G925F (edge).

Ripshod said:
Turns out I don't have true VoLTE. It's working more like Wifi Calling over LTE. Has the same result, as in it stays on 4G/LTE for any call I make (essentially the same job).
If you want the details I can post them for you, but bear in mind I'm running a custom ROM that makes my phone think it's a G925F (edge).
Click to expand...
Click to collapse
haha nice! wifi calling over your own 4G, nice
yeah send over the settings, althogh i think im going to give up for now, im due an upgrade in a few months now anyway

Don't forget to backup your current csc files first - just in case. VoLTE toggle should appear in settings>Mobile networks. Need to reboot. May take a while for it to become active on the network - you'll see the wifi calling icon in the statusbar when you're connected to 4G.
Good luck.
csc files
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Ripshod said:
Don't forget to backup your current csc files first - just in case. VoLTE toggle should appear in settings>Mobile networks. Need to reboot. May take a while for it to become active on the network - you'll see the wifi calling icon in the statusbar when you're connected to 4G.
Good luck.
csc files
Click to expand...
Click to collapse
sweet! thanks!

@discophil
Turns out it is VoLTE. EE are implementing it in a weird way, but it is working properly.

Thanks buddy

EE aren't implementing it weirdly. 4G has no voice component so is a data stream over internet traffic.

lynxblaine said:
EE aren't implementing it weirdly. 4G has no voice component so is a data stream over internet traffic.
Click to expand...
Click to collapse
Thanx. It really does seem weird to me. I was expecting volte to have it's own icon in the statusbar for a start, but all I get is the wifi calling icon. Calls definitely go over LTE when wifi is disabled.
I'm getting on in years but retain enough brain cells to see what's happening but not enough to fully understand it all. I do my best lol
Sent from my zerolte using XDA Labs

Verizon VoLTE update

With OnePlus Android 9 software update, Verizon VoLTE IMS stack is fully supported and although the phone doesn't support Band 13, it registers to Verizon's IMS servers (Band 2, 4, 5, 66) and calls go through over LTE, up to AMR-WB at 12.65kbps (HD Voice).
- Device isn't provisioned for Verizon VoWiFi (Wi-Fi Calling).
- CDMA voice registration for this device is still rejected by Verizon.
- Support for T-Mobile's VoLTE and VoWiFi up to EVS (Enhanced HD Voice) has been present since launch.
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This is exciting stuff for Verizon customers! I understand the technical aspects of this, but can you give anymore anecdotal feedback on what it's like to use the phone on Verizon? i.e. are you experiencing any dropped calls? What are your data speeds? How does the VZW experience differ from using the phone on another carrier?
When you say: "CDMA voice registration for this device is still rejected by Verizon" does that mean calls only connect over LTE? Or do you mean that the Verizon sim card needs to be registered before inserting into the phone? If calls only connect over LTE, how significant is that? Is it safe to say that everywhere on VZW's LTE map you'll be able to make/receive calls?
Thanks for the info!

I tried swapping my Verizon SIM over and calls work just fine over LTE bands 2 and 4. I can send texts as well, so now the only problem is I can't receive texts on Verizon.

geoff5093 said:
I tried swapping my Verizon SIM over and calls work just fine over LTE bands 2 and 4. I can send texts as well, so now the only problem is I can't receive texts on Verizon.
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Click to collapse
Same. On the phone with tech support now.

You need a CDMA-LESS profile on the verizon sim card that you are using. The same things goes for the 6T and Razor phone 2. The incoming texts are going through cdma which the 6 does not support.
Read this if you want details https://www.reddit.com/r/razerphone/comments/9tqpwq/new_razer_phone_2_wont_recieve_text_messgaes/
I'd sure like to use this phone on a verizon MVNO.

If you really want EVS, you can turn it on yourself. Using the EFS Explorer utility (from the QPST package) in the / efsprofiles / folder - write or write with replacement (if you already have such files in the folder) the overideconfig and overideconfig_Subscription01 files
This method is found on the Internet and verified. And this method works for any carrier if its infrastructure support EVS audio codec.

OnePlus 7 and VoLTE/Wifi-Calling

You got any issue with VoLTE or Wifi-Calling?

I had this problem. Oddly what solved it was removing the sim and factory reseting then putting the sim back in. Volte finally worked after that. Seems like a bug in OxygenOS

No Wifi-Calling?

WiFi calling works without issue

LandLockedPH said:
WiFi calling works without issue
Click to expand...
Click to collapse
Any particular app to use for WiFi calling??
Sent from my [device_name] using XDA-Developers Legacy app

humayunarshad said:
Any particular app to use for WiFi calling??
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Click to collapse
no u just switch it on an wwn u are near a wifi it will make call from that an recived sms an mms

-fluffy- said:
no u just switch it on an wwn u are near a wifi it will make call from that an recived sms an mms
Click to expand...
Click to collapse
How to switch?
Can you let me know please?

ambuj22263 said:
How to switch?
Can you let me know please?
Click to expand...
Click to collapse
what do u mean switch
u just actived it under settings/network/simcard provider
then u can set it to use volte or vowifi
as standart

You guys have stable Wifi-Calling connection?

Yes. I've had no issues with T-Mobile WiFi calling. Works fine.

@LandLockedPH T-Mobile US??

Quick update...
I went ahead and pulled the trigger on the OP7 (non-Pro).
I'm using a T-Mobile SIM (Sim 1) and AT&T SIM (Sim 2).
I can confirm that I"m getting VOLTE on both SIM's and VOWiFi on the T-Mobile SIM.
Really happy with the device!

I know not band 71 but how about 66?

Vowifi doesn't work on vzw

Does firmware for gm1905 exist? I'm thinking this also opens bands 66 and 71.
Sent from my SM-G975U using Tapatalk

I don't think however carrier aggregation works with the op7 and TMobile USA.
I ran a few ookla speed tests compared to my s10+ using mobile data only. Long story short the S10 would average download at approx 90mbps and the OP7 around 35mpbs.
The only way I could get the S10+ to attain similar figures to the OP7 was for me to disable LTE bands 2, 12 and 66 . In essence making it just use just band 4. Then the download speeds were similar.
On side a side note, having wifi calling enabled slowed the tests results further as you can see by the lower earlier results. Attached screen shot.
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Sent from my GM1900 using Tapatalk

LandLockedPH said:
Yes. I've had no issues with T-Mobile WiFi calling. Works fine.
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It would have been nice if there was a clear indicator that one was making a wifi calling is ready. Due to the notch I have disabled a few status bar icons including viofa and Volte. When placing a wifi call I have swipe down to check it it's wifi calling or not lolz
Sent from my GM1900 using Tapatalk

5G

No 5G option on my preferred network.

Do you have A40 firmware yet? If not, then that's probably the reason why. On android-hilfe.de there have been a lot of people with 5G issues but they have been resolved with the new firmware.

Craphead said:
Do you have A40 firmware yet? If not, then that's probably the reason why. On android-hilfe.de there have been a lot of people with 5G issues but they have been resolved with the new firmware.
Click to expand...
Click to collapse
Nope. I have the Vodafone model and I have 5G options within my settings
Sent from my CPH2025 using my thumbs to interact with GBoard

I've flashed latest german firmware .A42 and still don't have the 5G option...
Do I need to install firmware from another country?

Could you guys trigger "Developer Options" and check if "5G Network Mode" is greyed out or not

They activiated mine when I downloaded Android 11.

Do you guys have the CPH2025 model with 5G logo on the box? Then you should perform a factory reset, to see if that's help.
Sent from my OPPO CPH2025 using XDA Labs

IV always had 5g on my phone and IV flashed allot of different countries for each update I'm with ee, great 5g signal everywhere

MeTheRebel said:
Could you guys trigger "Developer Options" and check if "5G Network Mode" is greyed out or not
Click to expand...
Click to collapse
Yes, it is greyed out...

Stunna903 said:
They activiated mine when I downloaded Android 11.
Click to expand...
Click to collapse
Also mine activated on Android 11 BUT,
I did 5G Speedtests many times and compare it with NOTE 20 Ultra .
Find x2 pro : 20 to 40 Mbps
Note 20 Ultra : 160 to 280 Mbps
The same time, area and SIM card .
Also 4G is Faster than 5G and I don't know why .

When I got my phone via O2 in the UK, they told me that I would need a new SIM card because of 5G. I've not bothered to look into why this was necessary, but perhaps you need a new (5G compatible) SIM card too?

John N G said:
When I got my phone via O2 in the UK, they told me that I would need a new SIM card because of 5G. I've not bothered to look into why this was necessary, but perhaps you need a new (5G compatible) SIM card too?
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Click to collapse
No, I don't. All 4G sim cards are compatible with the new 5G infrastructure.

Is it dual sim model?

vessk0 said:
Yes, it is greyed out...
Click to expand...
Click to collapse
Did you manage to fix this?

I have same probelm mine from span i have last version no 5g

@HamdiPiixel do you have the option in SIM card settings to activate 5G and the phone just doesn't switch to 5G or is there no option to choose from in the first place?

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i dont have 5g in setting really don't why

@HamdiPiixel I had the same issue. Open the telephone dials and enter *#54794824# Do not hit the dial button though. After youve entered the code a message in the lower half of the screen should appear saying "5G switch activated". Then the option should be there. If not check if it is there after a restart.

Thanks you bro it's work you save me

Craphead said:
@HamdiPiixel I had the same issue. Open the telephone dials and enter *#54794824# Do not hit the dial button though. After youve entered the code a message in the lower half of the screen should appear saying "5G switch activated". Then the option should be there. If not check if it is there after a restart.
Click to expand...
Click to collapse
You are life saver man this code works

Data drops during calls

Hey guys, I have a SM-N986U1... Stock no root. I'm having a problem where my data drops out as soon as I make or receive a call, until I end it. Any solutions?

radici said:
Hey guys, I have a SM-N986U1... Stock no root. I'm having a problem where my data drops out as soon as I make or receive a call, until I end it. Any solutions?
Click to expand...
Click to collapse
Enable VoLTE if not yet.

Clear system cache
Network reset
Clear sim card toolkit data
See if those get it...

tribalfs said:
Enable VoLTE if not yet.
Click to expand...
Click to collapse
Option doesn't seem to be available... At least, I don't see it in settings or drop down menu.

blackhawk said:
Clear system cache
Network reset
Clear sim card toolkit data
See if those get it...
Click to expand...
Click to collapse
Thanks... Giving that a try.
EDIT: didn't work. Guess I will try a backup and do a full wipe. If that fails, I'll go to the Authorized Samsung Repair place here and see if it is a hardware issue.

radici said:
Option doesn't seem to be available... At least, I don't see it in settings or drop down menu.
Click to expand...
Click to collapse
Volte ,has to be enabled by your sim service provider !
That said, obviously your service provider ,must support this feature . ?
I had to phone my service provider and request them to enable Volte ( in my sim card settings ).
Take into account that if you have a branded firmware on your device ,that the firmware has to support Volte .
I had issues in the past ) with Volte been "disabled " /not working ,
( Service provider issues/mistakes )
I then had to contact my service provider and request then again to check my sim settings and re enable Volte again .
Bottom line ,
Service Provider "controls "the enabling etc of Volte ..!(sim card )
So yes , with Volte enabled ,my data connection does not drop when receiving voice calls
( otherwise it should drop )
good luck .
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