Flashed AT&T Firmware to my unlocked Note9, no VoLTE? - Samsung Galaxy Note 9 Questions & Answers

So I tried digging around and haven't found any similar situations. I flashed the ATT firmware to my Unlocked Note 9. I get WiFi calling and Visual Voice Mail. However, under Settings -> Connections -> Mobile Networks there is no options for "Enhanced LTE services" or something like that. I also do not get e VoLTE symbol in the status bar like I've seen on others devices. Am I missing something? Should I try swapping the SIM card? Any insight would be great. Cheers!

Naterade said:
So I tried digging around and haven't found any similar situations. I flashed the ATT firmware to my Unlocked Note 9. I get WiFi calling and Visual Voice Mail. However, under Settings -> Connections -> Mobile Networks there is no options for "Enhanced LTE services" or something like that. I also do not get e VoLTE symbol in the status bar like I've seen on others devices. Am I missing something? Should I try swapping the SIM card? Any insight would be great. Cheers!
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It's been discussed a lot here. The basic ideal is that AT&T, moreso than any other carrier, likes to restrict features from devices they didn't sell. It's done by the IMEI on the line. Firmware is one part of the equation, as you've discovered, but certain things just will not work without more steps.
Essentially, here's the process: Find a real AT&T device capable of VoLTE. Swap the IMEI of that device onto your line temporarily by placing your SIM card in it. You might also have to call AT&T and have them swap the IMEI on your line while the SIM is in. Have AT&T unblock the VoLTE feature. Put the SIM back in the device you actually want to use.

if I buy an unlocked note 9 from best buy i should not see this problem with my T-Mobile sim card right?

alher591 said:
if I buy an unlocked note 9 from best buy i should not see this problem with my T-Mobile sim card right?
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T-Mobile doesn't care at all where you bought your device. And most features work on unlocked, too. Missing from U1 on TMB:
- Video calling
- Native digits
If you flash to U, you get literally everything the network can do.

I have a AT&T Note 9 and I don't have the VoLTE listed in that area
It must be on by default (hardcoded) or is listed in another area

Related

Note 8 Unlocked Missing HD VOICE and VIDEO CALLING

I am uncertain which information is true or false, but thought I would ask here. I realized I may be missing a few features when I bought the unlocked Note 8. However, I was under the impression that I could somehow enable things like HD voice and Video Calling.
If I am able to do this, can someone provide a link to a guide I can follow for the Note 8? I realize there are third party apps. But, I was hoping to achieve the above naively.
I'm Currently with AT&T, but prefer the ability to Hot-Spot by using an unlocked version of the Note. Hopefully someone who has enabled this can chime in.
I currently have an ATT Note 8 and I have a similar question. I want to flash the unlocked firmware so I can use it on T-Mobile. I've looked online and couldn't find an answer hope someone here can help us.
So my understanding is that AT&T only allows things like HD Voice, Video Calling, VoLTE, Wi-Fi Calling, etc. On their branded device's. It's why I actually didn't get the unlocked device even though I previously had a Note 7.
fireguy0306 said:
So my understanding is that AT&T only allows things like HD Voice, Video Calling, VoLTE, Wi-Fi Calling, etc. On their branded device's. It's why I actually didn't get the unlocked device even though I previously had a Note 7.
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This was my understanding as well, but, I thought someone came up with a clever way of enabling these features. Hot spot and the ability to jump carriers were more important features than the others... which is why I went with unlocked. Am stuck in an unlimited data plan with AT&T for one more year. Unfortunately, they don't allow any kind of hotspot with unlimited plan.
Since the phone just became available and only to few people (BTW I'm still waiting), you guys have to wait , because since all those are hacks, phones have to get to right hands and then may take some time to figure things out, unless any of you have enough knowledge, then head to S8/S8+ forum and try using those solutions on your Note 8, may even work.
When I booted my Note 8 with T-mobile sim card, it applied some carrier customization and enabled VoLTE and WiFI calling but video calling is missing which I don't use much anyways.
You can usually do this via the service modes:
Dial *#0011# may work
Press the Menu key and then Back
Press Menu again then Key input and enter the value 1.
Wait a little
Press Menu and then Back
Press DEBUG SCREEN
Press WB-AMR SETTINGS
Press WB-AMR ENABLE
This use to work on previous models.
(In the UK being shafted by a long wait for my Note 8)
I thought many of the methods wouldn't work since AT&T uses whitelists on their system and it's not just the features are missing from the OS.
I tried the *#0011# and was able to get all the way to debug. That screen or option is not showing up on my unlocked note 8.
Ryya said:
You can usually do this via the service modes:
Dial *#0011# may work
Press the Menu key and then Back
Press Menu again then Key input and enter the value 1.
Wait a little
Press Menu and then Back
Press DEBUG SCREEN
Press WB-AMR SETTINGS
Press WB-AMR ENABLE
This use to work on previous models.
(In the UK being shafted by a long wait for my Note 8)
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Click to collapse
I know the S8 crowd has been flashing the carries specific CSC/CP files through a modified ODIN on top of the UNLOCKED firmware. I'm sure this will work on the note 8 as well. The modem should enable all the carrier specific bands and the CSC should enable the wifi calling and VOLTE. on a side note, check in the settings menu for the wifi calling. when I flashed the T mobile CP over the U firmware, I did not have a WIFI calling quick toggle but I did have wifi calling the in the regular settings menu. I had to toggle it on and off that way.
No where to be found for VZW on unlocked
Wi-Fi Calling is in the phone settings on the unlocked version...I have not seen HD or video though...WiFi calling works awesomely
BlueFox721 said:
Wi-Fi Calling is in the phone settings on the unlocked version...I have not seen HD or video though...WiFi calling works awesomely
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You on AT&T or T-Mobile?
JameyS said:
This was my understanding as well, but, I thought someone came up with a clever way of enabling these features. Hot spot and the ability to jump carriers were more important features than the others... which is why I went with unlocked. Am stuck in an unlimited data plan with AT&T for one more year. Unfortunately, they don't allow any kind of hotspot with unlimited plan.
Click to expand...
Click to collapse
Are you on an old grandfathered in AT&T unlimited plan? I have a new Unlimited plan and they offer lots of goodies including a 10GB/month hotspot for each phone.
Check them out: https://www.att.com/plans/unlimited-data-plans.html
You should not be stuck in any plan now for a year or any time frame. Change when you want to change.
Here's a link to information for Flashing the Unlocked Firmware and Carrier Switching on the Snapdragon S8+ (no rooting necessary). https://forum.xda-developers.com/galaxy-s8+/how-to/carrier-switch-snapdragon-t3615680
Probably going to be similar with our Note 8s.
Im on Verizon and I cant see wifi calling or HD voice aka VOLTE. Maybe we just need to wait.
This may help for people looking for video calling
https://forum.xda-developers.com/galaxy-note-8/how-to/guide-to-enabling-video-calling-t3670523
skinnytoo2 said:
No where to be found for VZW on unlocked
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I had to download the app "shortcut master". Navigate to to IMS Settings, click RCS Configuration and enabled everything. I also can see the WB settings under "DM Configuration" under the IMS settings but they are relabeled as xxx_WB and instead of enabled/disabled, it is a 0 or 1. I believe the 1 is enabled. Probably need to restart as well but I am uncertain.
The outstanding question I have is do I need to change HD_VOICE under the DM configuration from a 0 to 1 as I see that there as well.
lebodano said:
I had to download the app "shortcut master". Navigate to to IMS Settings, click RCS Configuration and enabled everything. I also can see the WB settings under "DM Configuration" under the IMS settings but they are relabeled as xxx_WB and instead of enabled/disabled, it is a 0 or 1. I believe the 1 is enabled. Probably need to restart as well but I am uncertain.
The outstanding question I have is do I need to change HD_VOICE under the DM configuration from a 0 to 1 as I see that there as well.
Click to expand...
Click to collapse
I downloaded the shorcut master. However when i try to change anything, it says SU: not found. I also saw in there about the HD voice enabled. But am not able to launch any type of editor. I have the note 8 unlocked version, using straight talk sim card on verizon towers. I would love to be able to talk on the phone and surf the internet at the same time.
anyone able to get this working on the unlocked version?
I have video calling & HD Voice working on unlocked model with VZW SIM on gUDP, I almost had WiFi Calling working; but broke video calling. I'm hoping to get both working; WiFi Calling works with T-Mobile SIM out of the box. I haven't messed with my AT&T SIM to see if any of the features work; but maybe this week I will.
WinDroidGuy said:
I have video calling & HD Voice working on unlocked model with VZW SIM on gUDP, I almost had WiFi Calling working; but broke video calling. I'm hoping to get both working; WiFi Calling works with T-Mobile SIM out of the box. I haven't messed with my AT&T SIM to see if any of the features work; but maybe this week I will.
Click to expand...
Click to collapse
How did you get video calling working. I still have yet to successfully place the call.

[UNLOCKED - AT&T] Enable VoLTE, Video Calling, WiFi Calling and more?

My phone: Samsung Unlocked variant running on AT&T
Using a dialer code I've found an app "Testing" that shows options to enable the VoLTE, Video Calling, WiFi Calling & I'm able to pick network type (GSM, UTMS, LTE, ect.) Some options work and some don't. Maybe somebody smarter than me can look into this and possibly enable 4G LTE on AT&T, as well as the other features?
Code: *#*#4636#*#*
Awesome..thanks
have you tried calling at&t and asked about adding your imei for them to enable those on your device.
Thats what i have read online that tech support from at&t can make this service works with unlocked note 8.
Im still waiting for my Unlocked Note 8 and wondering how to enable Volte (HD voice). i dont use wifi calling that much though.
Genesis730 said:
My phone: Samsung Unlocked variant running on AT&T
Using a dialer code I've found an app "Testing" that shows options to enable the VoLTE, Video Calling, WiFi Calling & I'm able to pick network type (GSM, UTMS, LTE, ect.) Some options work and some don't. Maybe somebody smarter than me can look into this and possibly enable 4G LTE on AT&T, as well as the other features?
Code: *#*#4636#*#*
Click to expand...
Click to collapse
Do any of those options actually work for you?
apascual89 said:
Do any of those options actually work for you?
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Changing networks does change my connection from 3G to HSPAP to no connection, depending on the option. The VoLTE, Video Calling & WiFi calling are temporarily enabled but then turn back off. Likely provisioning issue but that's all i can tell.
raffstyle said:
have you tried calling at&t and asked about adding your imei for them to enable those on your device.
Thats what i have read online that tech support from at&t can make this service works with unlocked note 8.
Im still waiting for my Unlocked Note 8 and wondering how to enable Volte (HD voice). i dont use wifi calling that much though.
Click to expand...
Click to collapse
I have and they advised there's no issue. They can't seem to figure it out but I've spent several hours and multiple calls trying to determine if it's an issue or the way things will be.
The only interesting thing they advised of that there's no device description on my account. (Typically it'll at least say Samsung Note8 got example but they see nothing) IMEI and SIM were updated upon activation.
unless something has changed recently, you have to have an ATT phone for all of these features to work. i can only get HDVoice (VoLTE) working on my Note Fan Edition and my wife's S8+, both of which are Exynos devices. I had to call ATT and (a) have them assign the IMEI of an ATT phone (S7 Edge and S7 Edge +) to each account and (b) by flashing an ATT CSC (from a Snapdragon ATT S8+) to the Note Fan Edition and the S8+. The ATT CSC's enable options for Wifi calling and video calling, but these features aren't working on either phone.
Hows your data speed? Do you get 4G LTE speed data?
coz you said your connection is going from 3G to HSPA+
raffstyle said:
Hows your data speed? Do you get 4G LTE speed data?
coz you said your connection is going from 3G to HSPA+
Click to expand...
Click to collapse
I average just under 5 Mb/s (Megabits, not megabytes which is about .5 MB/s) on H+ Latest test was 4.6 Mb/s
I do not get LTE, but am in a heavy LTE area (Phoenix, AZ) and get solid consistent LTE on my Note 5
Genesis730 said:
I average just under 5 Mb/s (Megabits, not megabytes which is about .5 MB/s) on H+ Latest test was 4.6 Mb/s
I do not get LTE, but am in a heavy LTE area (Phoenix, AZ) and get solid consistent LTE on my Note 5
Click to expand...
Click to collapse
WOW thats totally sucks! Im now worried about my preorder.
I might have to cancel my order from samsung and get an At&t brand note 8. I hope this is only a temporary problem with unlocked note users.
Thanks for all the info! good luck on getting all those at&t services.
raffstyle said:
WOW thats totally sucks! Im now worried about my preorder.
I might have to cancel my order from samsung and get an At&t brand note 8. I hope this is only a temporary problem with unlocked note users.
Thanks for all the info! good luck on getting all those at&t services.
Click to expand...
Click to collapse
I have an unlocked note 8 with an AT&T sim. I get great LTE speeds. In the city I get 100 plus Mbs at home or in the country I still get about 20 with only 2 bars of LTE i am only missing VoLTE and wifi calling
I'm hoping it's a setting issue on their end or something. I'm continuing to find a knowledgeable AT&T rep with some info. Good to know the unlocked version gets good LTE speeds. I'll get a new SIM and continue to look for a resolution. Worst case I'll flash radios as that looks like it's a developing option.
I gave up trying to jump through hoops to get WiFi calling and VoLTE and just bought the dang AT&T version when I preordered... If someone could come up with an easy way to get it all with an unlocked version...I'd be tempted to jump on it but until then, I'm stuck with the AT&T load.
chrisusa96 said:
I have an unlocked note 8 with an AT&T sim. I get great LTE speeds. In the city I get 100 plus Mbs at home or in the country I still get about 20 with only 2 bars of LTE i am only missing VoLTE and wifi calling
Click to expand...
Click to collapse
Did you just put your old sim to your phone or did you call/went to at&t to get a new sim and add your imei to at&t system ??
raffstyle said:
Did you just put your old sim to your phone or did you call/went to at&t to get a new sim and add your imei to at&t system ??
Click to expand...
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Added old sim I did call them to add features but was trying to get wifi calling
chrisusa96 said:
Added old sim I did call them to add features but was trying to get wifi calling
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What did you say when you called them?
borijess said:
What did you say when you called them?
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That I wanted to be able to use wifi calling and it doesn't work. The went through and made sure all features were enabled.
I have spoken with multiple AT&T reps and after speaking with someone ('ha-seen' is how it sounded) who said that they were with the Level 3 team I was told that video and wifi calling are all proprietary to AT&T and that you have to have a branded phone with their build and that the unlocked version would not have access to this.
Beianrui said:
I have spoken with multiple AT&T reps and after speaking with someone ('ha-seen' is how it sounded) who said that they were with the Level 3 team I was told that video and wifi calling are all proprietary to AT&T and that you have to have a branded phone with their build and that the unlocked version would not have access to this.
Click to expand...
Click to collapse
I got the same answer. I am calling and complaining to Samsung, I mean I pay to use the AT&T network and the features and the phone is capable of both volte and wifi calling there should be an easy way to fix this.
Just picked up the Note 8 U1 for use on AT&T, switching from a S8+ that was AT&T unlocked. I don't use WiFi calling, advanced messaging was cool but not having it won't hurt, I think. VOLTE is the big question, I know it's voice over LTE but how will that effect me talking and surfing the web at the same time?
JGuinan007 said:
I got the same answer. I am calling and complaining to Samsung, I mean I pay to use the AT&T network and the features and the phone is capable of both volte and wifi calling there should be an easy way to fix this.
Click to expand...
Click to collapse
I just use alternative app like Duo from Google Play Store. It works with or without WiFi and the app is make by Google

Can't Activate Note8, fails on configuration with Sprint & Boom Mobile

Hi Guys, I'm wondering if someone more knowledgeable can help advise. I've spent 12 hours and cant activate my Unlocked Qualcomm Note8 on any of my service providers (SMN-950U1.)
I want to use it on Boom Mobile Red (Verizon MVNO)
I cant get the Network Operator to configure, when I select Verizon it fails on configuration. I'm not referring to APN because I do not even get calls, the Operator is listed as "Emergency Calls Only". The Sim works perfect on my Pixel XL and iPhone 7 Plus. This phone was purchased unlocked form Samsung direct with clean IMEI. I called Samsung and they have no idea, they said the phone is defective, which I believe it is not.
I had an issue activating with Sprint and still have not had Data working, though I was able to get calls. I've given up w/ Sprint and will upgrade that line with a iPhone X.
I inserted my friends Verizon Post Paid Sim from his Moto Mod phone and everything was perfect (calls, TM, LTE calling) and the phone got LTE+. Is it possible the Note8 unlocked will only work with the big 4 carriers, ST and TW? I read a similar issue people from Boost Mobile have when they insert their sims it says invalid Sim. I really have no idea what is going on - Boom doesn't have many customers and their support team has never delt with this issue, they said the phone is defective. Has anyone been able to use a Unlocked Note8 on Boom? I've tried flashing various variants of firmware, including Verizon with no success. I'm puzzled with what is going on.

Pair 10 pro with AT&T Number Sync successful

So sorry if this was common knowledge but I haven't seen anything on this yet so I thought I'd share. I decided to try setting up AT&T's number sync between my new mate 10 pro and my LG Sport and it worked. What makes that amazing is this is the first non att branded phone I have ever been able to set up directly between the phone and a att smartwatch that didn't require me using a att branded smartphone in the middle. You can't find the ability to do it through the my att app or website but if you initiate through the watch, it will open the browser on your phone and then give you a number sync code, once you log in through the browser, you put in the code and then accept terms and it will successfully link. This phone also seems to work well with the LG Sport. Battery life is waaay better then when it's paired to my Att Note 8.
FYI, Att number sync allows multiple devices to receive a phone call or text message from the main line they are tied to. That way every thing is seen from one number. One of the requirements is that the phone must be Att branded.
So that tells me between this and VoLTE working on att with this phone, this phone was all but ready for att network and only thing missing was the att branding on the phone before att backed out.
Sorry if long l, just wanted to share to maybe help other att users.
Have you been able to get/verify that VoLTE is working on your mate 10 Pro? If yes, how did you verify it works? I have a Dual Sim 10 Pro rebranded to the US 10 Pro (did at Best Buy) with the Enhanced Voice and VoLTE options enabled. Thanks.
Sent from my SM-N950F using Tapatalk
I didn't use the default apn that sets up when I had my att sim inserted. I used the settings from att's support page: https://www.att.com/esupport/article.html#!/wireless/KM1218306
If I remember, there were a few subtle differences. Honestly, I didn't notice if VoLTE was working before the new apn settings but I see that it works for sure with the new apn settings. My status doesn't change from LTE whether on call and/or browsing.
ILuvRice said:
I didn't use the default apn that sets up when I had my att sim inserted. I used the settings from att's support page: https://www.att.com/esupport/article.html#!/wireless/KM1218306
If I remember, there were a few subtle differences. Honestly, I didn't notice if VoLTE was working before the new apn settings but I see that it works for sure with the new apn settings. My status doesn't change from LTE whether on call and/or browsing.
Click to expand...
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well, not working for me... i used an app to validate data connection during phone call and when connected to a call, data drops to HSPA+.
d.cortez said:
well, not working for me... i used an app to validate data connection during phone call and when connected to a call, data drops to HSPA+.
Click to expand...
Click to collapse
Hmmm...visually the LTE symbol dosesnt change and I think it sounds like it should. What's the app you used? I'll check and see if I get the same thing.
ILuvRice said:
Hmmm...visually the LTE symbol dosesnt change and I think it sounds like it should. What's the app you used? I'll check and see if I get the same thing.
Click to expand...
Click to collapse
I use Network Cell Lite to check connectivity when on a phone call.
d.cortez said:
I use Network Cell Lite to check connectivity when on a phone call.
Click to expand...
Click to collapse
So I made a phone call with the app running and it showed under the raw tab:
Voice NW: LTE
Data NW: LTE+
So I'm guessing its working.
ILuvRice said:
So I made a phone call with the app running and it showed under the raw tab:
Voice NW: LTE
Data NW: LTE+
So I'm guessing its working.
Click to expand...
Click to collapse
yep, that's an indication it's working; time to call ATT. Thanks for checking.
d.cortez said:
yep, that's an indication it's working; time to call ATT. Thanks for checking.
Click to expand...
Click to collapse
No problem. I was thinking, you said you rebranded to us but I wonder if by a slim chance there is some hardware difference that is dectected? Like maybe a certain band att uses. I haven't looked at the differenceces in bands between models.
ILuvRice said:
No problem. I was thinking, you said you rebranded to us but I wonder if by a slim chance there is some hardware difference that is dectected? Like maybe a certain band att uses. I haven't looked at the differenceces in bands between models.
Click to expand...
Click to collapse
Cellular bands are the same as US version; when not in a call I connect to LTE+. I can achieve cellular download speeds of 98 Mbps. Main difference between US version and mine is my phone is dual SIM Mate 10 Pro. The second SIM connects to 4G when I make a call. If I use only 1 SIM, connection drops to HSPA+. I see an option to enable VoLTE on the second SIM, but it's disabled. Have you to find a way to enable it. I appreciate your feedback, thanks again.
d.cortez said:
Cellular bands are the same as US version; when not in a call I connect to LTE+. I can achieve cellular download speeds of 98 Mbps. Main difference between US version and mine is my phone is dual SIM Mate 10 Pro. The second SIM connects to 4G when I make a call. If I use only 1 SIM, connection drops to HSPA+. I see an option to enable VoLTE on the second SIM, but it's disabled. Have you to find a way to enable it. I appreciate your feedback, thanks again.
Click to expand...
Click to collapse
As you probably know, mine only has one Sim slot and when I go to settings and drill down into the mobile network options, under 'Advanced' Enhanced LTE Services is already enabled.
ILuvRice said:
As you probably know, mine only has one Sim slot and when I go to settings and drill down into the mobile network options, under 'Advanced' Enhanced LTE Services is already enabled.
Click to expand...
Click to collapse
i have the same setting/option and it's also enabled; see below. will contact at&t again tomorrow.

VoLTE and Wifi Calling support

Would like to know if these features are supported for the major US carriers. That's the only thing holding me back from pre-ordering.
gordec said:
Would like to know if these features are supported for the major US carriers. That's the only thing holding me back from pre-ordering.
Click to expand...
Click to collapse
I know U.S. T-Mobile supported the XZ3 for VoLTE, which was the FIRST Sony unlocked phone it did that for. Your best bet to find out is prob to go check out other like 2019 or 2020 unlocked phones that people have VERIFIED to offer both on AT&T as well. But if that's an issue, then you may wanna consider T-Mobile then. I noticed on the XZ3 that in Call Settings there no longer was the option to turn VoLTE on or off, but during calls it REMAINED in 4G LTE (vs. just 4G), thereby proving VoLTE was in fact enabled.
The US Xperia 1 supported voLTE on T-Mobile, but not WiFi calling. So I'm assuming the mark II would at least do voLTE on T-Mobile. Not sure about the other carriers, but I feel like it would have to since carriers like Verizon are starting to not allowing non voLTE devices to be activated. And the mark II is supposed to work on Verizon.
Easy way to get WiFi calling in the US
https://forum.xda-developers.com/xperia-1/how-to/easy-to-wifi-calling-t4100229
Scorpiusest said:
https://forum.xda-developers.com/xperia-1/how-to/easy-to-wifi-calling-t4100229
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How is this a solution? Switching carriers lol
I want to preorder, but really need WiFi calling. Going to wait until regular users start to receive theirs. Right now with Xfinity Mobile we are paying about $30 per month for 5 lines. The service is as good as when we were Verizon postpaid. Not willing to switch just for this phone.
Anyone in the UK on O2 get it?
Rodders_28 said:
Anyone in the UK on O2 get it?
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Yup, got both (see attached)
I have none of those settings there.
I also don't get 4g+ don't know if that's related?
I get 4g+ if I put the missus Vodafone sim in.
Rodders_28 said:
I have none of those settings there.
Click to expand...
Click to collapse
I should have mentioned also that I'm actually on the "Customized UK" firmware opposed to the "O2 UK Pay Monthly firmware" but I had WiFi calling for sure prior to this
So my Xperia 1 ii arrived today, I'm finishing-up set-up. This is the US model, which I'm using with ATT. The deep dive *#*#7378423#*#* on the software info page states: "Current modem config: VoLTE-ATT "
But have yet to find any configuration for VoLTE or Wi-Fi calling. I'll try a call with one of the other lines in my family, who have ATT branded newish phones, to see if it "sounds" like an HD Voice call (there's not notification bar indicator of HD call, right?).
Update: Tried the other *#*#4636#*#* and the options under Phone Info are all grayed out (sigh)
JamesMiami said:
So my Xperia 1 ii arrived today, I'm finishing-up set-up. This is the US model, which I'm using with ATT. The deep dive *#*#7378423#*#* on the software info page states: "Current modem config: VoLTE-ATT "
But have yet to find any configuration for VoLTE or Wi-Fi calling. I'll try a call with one of the other lines in my family, who have ATT branded newish phones, to see if it "sounds" like an HD Voice call (there's not notification bar indicator of HD call, right?).
Update: Tried the other *#*#4636#*#* and the options under Phone Info are all grayed out (sigh)
Click to expand...
Click to collapse
You have to call ATT to whitelist your new IMEI for VoLTE provisioning. Then you need to make sure a new sim that supports VoLTE. This is what they told me but I'm missing the new sim, going to get one tomorrow
Thank you.,I'll give that a try. My SIM is the supposedly latest, about 2 years old, i. e. "A compatible SIM or eSIM card will display 25, 26, 27, or 28 in the ninth and tenth digits spots." Is there a newer SIM for ATT?
So had the following chat with ATT tech support:
"... Calista : To confirm, was the device purchased through AT&T?
Me : No, this is an unlocked phone, US model of Sony Xperia 1 ii
Calista : Thanks for the confirmation.
Calista : I have successfully activated VoLTE on the new device.
Calista : I have also checked and see that Wi-FIi calling can only be provisioned only on the device that are purchased through AT&T. However, AT&T will soon activate WiFi calling on the device that are not purchased through AT&T as well. You will be notified about this. "
However after power-cycling my phone and reprovisioning via Testing/Phone Information and on that page the steps of Refresh to get the SMSC number then tap Trigger Carrier Provisioning"--nothing, not VoLTE live switch. Remains gray. Still, interesting comment by tech support about upcoming Wi-Fi calling on BYOE.
Anyone know about VoLTE on Verizon yet? Just ordered my phone today and hoping that it will work.
JamesMiami said:
So had the following chat with ATT tech support:
"... Calista : To confirm, was the device purchased through AT&T?
Me : No, this is an unlocked phone, US model of Sony Xperia 1 ii
Calista : Thanks for the confirmation.
Calista : I have successfully activated VoLTE on the new device.
Calista : I have also checked and see that Wi-FIi calling can only be provisioned only on the device that are purchased through AT&T. However, AT&T will soon activate WiFi calling on the device that are not purchased through AT&T as well. You will be notified about this. "
However after power-cycling my phone and reprovisioning via Testing/Phone Information and on that page the steps of Refresh to get the SMSC number then tap Trigger Carrier Provisioning"--nothing, not VoLTE live switch. Remains gray. Still, interesting comment by tech support about upcoming Wi-Fi calling on BYOE.
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Those tech support chats are useless! Took me 4 calls/chat to get to one knowledgeable one who said they have to file a level 3 tech support ticket and as she was doing it she said our internal memo said this cannot be done for non-AT&T branded phones so I'm sorry
Why not just use Google Voice for wifi calling? I use Google Voice for just about everything now as it's a nice alternative to giving up my number to random businesses.
Is it possible, to install the VoLTE/VoWifi carrier settings by an app (as .apk)?
My problem is that Sony didn't include these settings for Swiss carriers. So I am thinking about, how to add these settings without breaking the firmware.
YandereSan said:
Why not just use Google Voice for wifi calling? I use Google Voice for just about everything now as it's a nice alternative to giving up my number to random businesses.
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VoLTE is required to continue to use AT&T after they sunset 3G and 4G (without VoLTE). Speaking of Google, they've confirmed to me that this phone (US version) works fine on their Google Fi, supporting VoLTE, which is interesting in that Google Fi is an MVNO via Sprint, T-Mobile, and U.S. Cellular.
So if I give ATT an IMEI for a Nokia Lumia 830 or Microsoft Lumia 640XL (both on AT&T's "good" list) to associate with my SIM in my Xperia, will my Xperia be provisioned by AT&T with VoLTE & Wi-Fi calling?

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