yashsingh1/xdaforums huggingface dataset:
[OnePlus 6T  Questions & Answers] Robisan:
That Pei comment was about ATT. OnePlus CEO Lau appears to say differently about VoWifi on Verizon. From The Verge*:

* Under 10 posts = no link allowed. Article title "The OnePlus 6T might be the company’s big break in America" October 29, 2018
[OnePlus 6T  Questions & Answers] mistah_mumford:
While that's great and all, we gotta figure out how to get it going on our devices. Should we be pestering Verizon or OnePlus?
[OnePlus 6T  Questions & Answers] Robisan:
I'd start with Verizon - they're the entity that needs to enable it. The 6T is a VZW verified phone and OnePlus has said VoWifi should work. If you get no love from VZW then back to OnePlus. Personally, I can't buy this phone until I know VoWifi enables because I need it as an LTE backup at my location. I'm just trying to raise awareness that OnePlus said VoWifi should work on VZW.
[OnePlus 6T  Questions & Answers] babartheking:
Anyone with Verizon and grandfathered unlimited? Now comes the hotspot question... Does the OP6T check for subscription? Currently have the Essential and looking to moving to this if the hotspot does not check for it.

TIA!
[OnePlus 6T  Questions & Answers] mistah_mumford:
Oh you have to have a subscription to use hotspot? I could always hotspot with my iPhone with no issues.
[OnePlus 6T  Questions & Answers] babartheking:
With the OLD grandfathered unlimited, you needed to subscribe to the hotspot feature after Android 7/Nougat on Verizon (well, unless rooted of course). Previously you could use the FoxFi app until 7.0 came as an easy workaround for those who didn't root.

The Essential phone doesn't check, so was wondering if it was the same with the OP6T.
[OnePlus 6T  Questions & Answers] swhitney2003:
I have the original grandfathered unlimited plan and it works. I haven't rooted or unlocked bootloader yet. Normally I have to root and change buildprop to get it to work.
[OnePlus 6T  Questions & Answers] lendawg:
I know this will sound stupid but can I ask how you cleared cache partition in recovery? Are you rooted using custom recovery? I tried booting into recovery and it asked for a password and I ended up having to reset my phone. Any help is appreciated thanks.
[OnePlus 6T  Questions & Answers] natypes:
Just booted into stock recovery, entered my pin, used volume/power buttons to delete cache.

I'm squared away now. Verizon added CDMA-less provisioning and everything is fine. That's the answer to this issue.
[OnePlus 6T  Questions & Answers] lendawg:
I'm assuming your pin is your lock screen/ fingerprint pin? I was thinking it was my Gmail password lol I feel like an idiot.
[OnePlus 6T  Questions & Answers] natypes:
Don't feel bad. I don't think I've rooted a phone since LG G2 lol. Twrp was just getting started, we were using clockwork at the time. I tried to hold power button to force a reset before I realized I could touch the keyboard and enter my pin lol.

Just enter the pin you used to set the device up.
[OnePlus 6T  Questions & Answers] lendawg:
Thanks for the help man. Much appreciated.
[OnePlus 6T  Questions & Answers] babartheking:
That's definitely great news! Thanks!
[OnePlus 6T  Questions & Answers] kzoak82:
Not sure if I'm missing something, but after I got the texting issue fixed with Verizon, I asked about wifi calling. The rep said that she sees the feature and said that she enabled it. Not that I have an option on the phone, but must mean something?? Apologies in advance if this was already discussed, but I skimmed the thread and didn't see anything.
[OnePlus 6T  Questions & Answers] KOLIOSIS:
Did you try the dialer code *#*#4636#*#* & see if the WI-FI Calling toggle is available?
[OnePlus 6T  Questions & Answers] mistah_mumford:
I did that and "WiFi calling provisioned" is on the (off) position...
[OnePlus 6T  Questions & Answers] KOLIOSIS:
Were you able to move the toggle,or,was it greyed out?
[OnePlus 6T  Questions & Answers] mistah_mumford:
Greyed out unfortunately.
[OnePlus 6T  Questions & Answers] Robisan:
Reading back to kzoak82's post @40 it says a VZW rep 'enabled' wifi calling. Perhaps VZW needs to enable that at their end to make the option active on the device? (Sorry, I'm not familiar with what dialer code *#*#4636#*#* enables a user to do.)
[OnePlus 6T  Questions & Answers] _BГ@ckθut:
Anyone has issue with losing signal and VOLTE? I has issue that losing VOLTE and then complete said no service..but after switch to sim slot 2 everything work...but today i noticed that it make the same thing on sim slot 2...so completely lost signal and VOLTE on the phone....btw i has Verizon.
[OnePlus 6T  Questions & Answers] tlbland0426:
I've had that issue sometimes after restarting my phone. Doing another restart usually fixes it but it is annoying.
[OnePlus 6T  Questions & Answers] _BГ@ckθut:
The thing is i completely lost signal and then after i reboot signal does come back but VOLTE wont work...cant make a call...
[OnePlus 6T  Questions & Answers] tlbland0426:
Hmm...odd. Both my signal and VoLTE always come back after doing another restart.
[OnePlus 6T  Questions & Answers] _BГ@ckθut:
Yeah... after reboot like 5 minutes my signal complete lost it show no signal?...
[OnePlus 6T  Questions & Answers] kzoak82:
Fyi, I mentioned to oneplus that Verizon was able to enable wifi calling on their side. Not much progress, but here's what they said.
[OnePlus 6T  Questions & Answers] mistah_mumford:
Now, those of us who bought this phone thinking that it was fully compatible have a decision to make before our 14 days expires.
[OnePlus 6T  Questions & Answers] kzoak82:
So I called Verizon to get their side of the story. I was only able to get to a tier 2 tech. He was very nice and did some research. Told me that he found something that clearly states in black and white that Wi-Fi calling will not be supported. I asked how I can escalate this further and he gave me an address that he said not everybody gets to send a letter (implying that it may matter). . not sure how effective it would be for everyone to send a letter but figured I'd throw the idea out there and see what everyone thinks.
[OnePlus 6T  Questions & Answers] Robisan:
Hmmm, how would one enable it for third party apps if it's grayed out? Can it be used with a Google Voice number? How? VZW numbers can be 'no answer > forward to' another number (e.g. GV#), which could be a workaround. Also, I'm no tech expert but not sure why CDMA-less would affect wifi communications. All of these things make me question the answer from that OnePlus chat/tech.

I sympathize with those running up on the 15-day decision window, which is why I'm holding off my order. Hard to get something like this resolved that quickly. I appreciate you guys making an attempt.
[OnePlus 6T  Questions & Answers] mistah_mumford:
I’ve decided to apply the RMA (already factory reset) and go back to my XS Max. If it is resolved at some point then I’ll buy another 6T. If not, lesson learned.
[OnePlus 6T  Questions & Answers] Robisan:
Well if that's true then maybe this is a dead end. Sadly, no matter how forthright they may sound, from what I've experienced and heard you can never truly trust anything a VZW tech/rep tells you, so...

Still puzzles me why OnePlus was telling the press it would work on VZW. Oh well...
[OnePlus 6T  Questions & Answers] mistah_mumford:
Thirteen hours later, I just finished setting it up again. This damn thing is too good to send it back for something I need for one weekend/week per year.
[OnePlus 6T  Questions & Answers] _BГ@ckθut:
Well i can be any more frustrating about this phone...ims wont registered...no VOLTeE no signal or anything...also can anyone dial *#*#4636#*#* and then on top 3 dot click ans check what IMS status? Thanks mine said im not registered or anything!maybe got block by Verizon....fk Verizon..
[OnePlus 6T  Questions & Answers] coolguy:
Thanks for checking, so no good then?

I guess need to look into Verizon lte signal booster device using home wifi as workaround.
[OnePlus 6T  Questions & Answers] coolguy:
Shows greyed out for me for Verizon wifi calling.. just hoping in few weeks it will work.
[OnePlus 6T  Questions & Answers] _BГ@ckθut:
Does anyone got issue like this or just I'm the only one?
[OnePlus 6T  Questions & Answers] mistah_mumford:
I'm glad that I did this. I'm in the place where I normally need WiFi calling and I still have LTE. The only thing that happened was my phone dropped from LTE+ to LTE. Hmmm
[OnePlus 6T  Questions & Answers] WyldOne91:
Just figured I'd throw this in here. I have Verizon, I found a Magisk module that forces WiFi Calling to show up. However, after multiple reboots and testing, it still sadly does not work even though it shows as being enabled.View attachment 4639475
[OnePlus 6T  Questions & Answers] akmsr:
i guess you guys are all post-paid accounts. i actually have success in working sms/mms in verizon prepaid.

https://xdaforums.com/showpost.php?p=78122901&postcount=17
[OnePlus 6T  Questions & Answers] WyldOne91:
Did this work for WiFi Calling? That's what this thread is in regards to
[OnePlus 6T  Questions & Answers] akmsr:
no but i looked at the thread title, it has texting in it. so i thought......
[OnePlus 6T  Questions & Answers] Robisan:
Perhaps there's a VZW system toggle that needs to be enabled? There's been conflicting wifi calling info from VZW (imagine that!) but kzoak82 @ post 40 spoke with a tech who saw and enabled a wifi option in the VZW system for a 6T.
[OnePlus 6T  Questions & Answers] mistah_mumford:
I emailed Sam Lee directly and this was his response to me...
[OnePlus 6T  Questions & Answers] kzoak82:
So here's a dumb question. What about video calls? I'm referring to the ability we had to switch to video through Verizon's advanced calling. Again maybe a dumb question, but I don't know.

---------- Post added at 11:52 PM ---------- Previous post was at 11:50 PM ----------

I think it's the phone line that it was enabled for, but being blocked based on the hardware (e.g. Oneplus 6t).
[OnePlus 6T  Questions & Answers] Robisan:
Understood. But WyldOne91 'found a Magisk module that forces WiFi Calling to show up' on the hardware, thus potentially removing the hardware block.
[OnePlus 6T  Questions & Answers] kzoak82:
I'm thinking that Verizon has the phone on a restricted list. Similar to when you block a device on your home router. Wifi is enabled on the network (like wifi calling on the line) and wifi is enabled on the device (like the wifi calling setting that wyldone91 achieved), however the device won't get the signal because you've put it on a restricted list in the router (like what Verizon is probably doing here).
[OnePlus 6T  Questions & Answers] _BГ@ckθut:
Does anyone know how to fix this I think I messed up turn on and off some function it not supposed to be on! I did got the data but wasn't able to make a phone call...

Edit: i also did a *#800# and turn on VOLTE function on i dont know does that why?
[OnePlus 6T  Questions & Answers] _BГ@ckθut:
And this what happened when I swap to sim slot 2 VOLTE work but it it stay like 30 min then it gone!I think I got T-Mobile hardware with dual sim :)
[OnePlus 6T  Questions & Answers] borijess:
For those of you on ATT. Is it possible to get some of the features on one plus if we give them imei of an ATT branded S7? Or will it fail once the imei is popped into the 6T.

I did this on my unlocked note 8. But not sure if it will work on 6T. Please let me know if you have done this.
[OnePlus 6T  Questions & Answers] crowsnestitsupport:
https://xdaforums.com/showpost.php?p=78081048&postcount=14

all things AT&T answered there. But what features are you asking about?
[OnePlus 6T  Questions & Answers] borijess:
I don't think I will be able to get WiFi calling. But Volte would be nice. I popped my sim into the S7 and was able to get WiFi calling and volte working. But on my 6T I can not.
[OnePlus 6T  Questions & Answers] The_Big_H:
I used to have an unlocked Galaxy S8 on at&t and couldn't get volte or wifi calling. Supposedly they block those features on all unlocked devices except the iPhone.

I also can't get at&t to recognize the IMEI on-line.
[OnePlus 6T  Questions & Answers] sharksfan7:
I got my 6T on Friday. Used [MENTION=6947587]crowsnestitsupport[/MENTION]'s instructions for the *#800# trick to get the VoLTE & WiFi calling settings to show. Popped in my sim. Had LTE data but didn't get VoLTE & couldn't get AT&T's VVM app to activate. Called support, ended up giving them my IMEI and not surprisingly it came up as Unknown Device. Guy basically said until the system can recognize the device there was nothing he could do to get VoLTE & VVM working. However after I got off the phone, I quickly realized I no longer had any mobile data at all. Called back, spoke to another rep, and she tried for an hour to get my data back. She wasn't able to. She had to escalate the issue and said it could take 24 hours or more to resolve. I figured out that if I changed APN from ATT Nextgenphone to ATT Phone I could at least have some mobile data, albeit only 3G. Wasn't until Sunday afternoon that LTE came back online including VoLTE. I don't know what had to change to get it all working. Just glad that it is now. Still no WiFi calling but I don't expect to get that.
[OnePlus 6T  Questions & Answers] coolguy:
It's very annoying that OnePlus doesn't disclose this and expect us to find it once we buy this. If something is certified means certified all the way, not 80% certified.
[OnePlus 6T  Questions & Answers] The_Big_H:
It's not a OnePlus issue, it's a carrier issue. The carriers want you to buy their branded devices.
[OnePlus 6T  Questions & Answers] coolguy:
It's the onePlus that's selling it, not the carrier.
[OnePlus 6T  Questions & Answers] Robisan:
From a OnePlus staff member in the OnePlus forum:
[OnePlus 6T  Questions & Answers] coolguy:
Thanks.
[OnePlus 6T  Questions & Answers] crowsnestitsupport:
Sorry for the negative experience. I should have specifically noted to avoid giving AT&T your OP6T IMEI. There is something about the agents forcing that IMEI into their system when it's not supported. I HATE AT&T for that. But if you have an AT&T branded phone like and s8 or 9 or something like that, that you can give them, VOLTE does work. I just wish it was so confusing and painful. Glad it's working now..
[OnePlus 6T  Questions & Answers] crowsnestitsupport:
Thank you! That is good info. It does seem like "maybe" there could be an update down the road that might allow VOWiFi.
[OnePlus 6T  Questions & Answers] crowsnestitsupport:
VOWifi will not work.. But if you have an AT&T IMEI off an AT&T device that you enter into the AT&T system, you can get VOLTE to work on the OP6T.
[OnePlus 6T  Questions & Answers] crowsnestitsupport:
That is the first I have seen an ETA on it! Perhaps there will indeed be hope for it down the road!
[OnePlus 6T  Questions & Answers] borijess:
Do u guys have the link to enter imei?
[OnePlus 6T  Questions & Answers] coolguy:
How could you have another imei added and then have service on a diff imei?
[OnePlus 6T  Questions & Answers] crowsnestitsupport:
My account is business. On that its right on the home page. Its called change IMEI.

But yes, you can enter any real AT&T IMEI off of something like an s8 or 9 and at&T automatically provisions volte even though the device you are using is the OP6T.
[OnePlus 6T  Questions & Answers] mistah_mumford:
I have my fingers crossed!
[OnePlus 6T  Questions & Answers] Robisan:
+1. But this is Verizon so don't hold your breath. IMO it's at best a coin flip whether Vowifi ever gets enabled.
[OnePlus 6T  Questions & Answers] mistah_mumford:
I picked up a used 2 XL to give me a better camera and WiFi calling during the holidays then I can switch back to my 6T.
[OnePlus 6T  Questions & Answers] The_Big_H:
Do you know if this method would work by using an unlocked iPhone IMEI? Since they allow VoLTE and Wi-Fi Calling on ALL iPhones it should...right?
[OnePlus 6T  Questions & Answers] borijess:
So I did this and added the imei of the s7. But I still can't get VOLTE. What do I do after hitting *#800#?
[OnePlus 6T  Questions & Answers] borijess:
Here is a pic of att showing the S7
[OnePlus 6T  Questions & Answers] crowsnestitsupport:
[MENTION=2820626]The_Big_H[/MENTION]

I have never tried an iPhone IMEI. But it should work..

[MENTION=2793689]borijess[/MENTION] Here are the instructions.

go do the dialer, dial *#800# and hit enter, select oneplus logkit, scroll down to function switch and select it, and check the box for VoLTE switch and Vowifi switch and then reboot, it puts the VOLTE setting and VoWiFI setting in for both the Verizon and AT&T SIM. and while you can enable VoWIFI on both Verizon and AT&T, it DOES NOT work on either. On AT&T however, as long as you have a VOLTE capable/recognized IMEI on your AT&T account for your line, VoLTE/HD voice work just fine.
[OnePlus 6T  Questions & Answers] kitcostantino:
im glad that worked. I live in Upstate SC (Oconee county) and my experience has been great in terms of coverage on Vzw with the OP6t. Every spot i had no signal in the past is now functional, save one or two that topography blocks signals, I wish OP had done this sooner. :)
[OnePlus 6T  Questions & Answers] suzook:
I find it funny people complaining about camera on 6t. They are not that bad. They are excellent imo, and almost as good as pixel, especially with the gcam port.
[OnePlus 6T  Questions & Answers] mistah_mumford:
Not saying they were bad but they're not the Pixel. I went ahead sent mine back. Should be at OnePlus on Monday. WiFi calling is too important. This 128GB 2 XL is fully compatible with big red. If they get the remaining incompatibilities worked out, I'll certainly buy another 6T and activate it on my big red account though.
[OnePlus 6T  Questions & Answers] soundneedle:
I’m able to get Wifi calling enabled along with WiFi as the preferred calling preference on my 6t with verizon. Not sure how to test if it works though. Only see a volte icon in the status bar. Is the issue it just doesn’t work even though it says enabled? Just got the phone so not sure how to test that wifi calling really is working...

https://imgur.com/a/BCLnXeq

Update 1: Just noticed it reverts to mobile preferred any time I change it to wifi preferred. But wifi calling still says enabled.

Update 2: Ugh. Nevermind. Just noticed an earlier post saying that it still does not work.
[OnePlus 6T  Questions & Answers] mistah_mumford:
What?!?! I didn't even have the option in mine with my Verizon SIM.
[OnePlus 6T  Questions & Answers] Robisan:
Try putting it in Airplane mode then toggle wifi on and see if you can make a call. It's not supposed to work but ??
[OnePlus 6T  Questions & Answers] soundneedle:
Just says turn off airplane mode, which I tried.

With wifi on and mobile data off (via quick tiles), it dials out---but I'm assuming it's still not wifi but using some type of mobile data connection (even though it shows as off). My cell signal bars (status bar) show a little "x" on it. I'm guessing the dialer would say "wifi call" if it were actually using wifi and not mobile. Just odd that dialing works even with mobile off.
[OnePlus 6T  Questions & Answers] robbieast:
How u get that option, I'm on verizon and don't see it
[OnePlus 6T  Questions & Answers] soundneedle:
The option only appears after going into the dialer menu and turning it on. Somewhere in this thread is the exact command needed to get to that menu. Don't recall....doesn't really matter though as apparently it just won't work at all until verizon/oneplus (whomever) flips the switch.
[OnePlus 6T  Questions & Answers] mistah_mumford:
I'm not sure about anyone else but anytime I tried that command the wifi calling options we greyed out.
[OnePlus 6T  Questions & Answers] borijess:
This worked. Thank you.
[OnePlus 6T  Questions & Answers] Aircraft800:
How were you able to change your IMEI online? I looked everywhere on the myAT&T site, the only thing I could find was if I had a Premier AT&T account which I don't. I'd like to get VVM working on my OPO 6T.

Never mind: I see that you have a Business Account.

Is there a way to change the model name on my OPO 6T to spoof AT&T to think I'm on a Samsung s7 Edge?
[OnePlus 6T  Questions & Answers] szymonurai:
At&t VoltE and Wifi

Volte seems to be working for me with At&t. I had a iphone 6s registered and the plan I'm on everyone has iphones. I simply turned it on using the *#800# settings.

I cannot seem to get wifi calling to work. I am using the stock dialer. Would google dialer change anything?

I got the switches in my setting to turn wifi calling and volte on but only volte works.

Is there something else I can try?
[OnePlus 6T  Questions & Answers] borijess:
Same here no WiFi calling but do have volte.
[OnePlus 6T  Questions & Answers] Skidoo03:
Anyone heard any updates on VoWiFi from either carrier?
[OnePlus 6T  Questions & Answers] Harmtan2:
It's probably not going to happen. Both Carriers have set a precident of leaving non-carrier offices out of the loop on that.
[OnePlus 6T  Questions & Answers] ma678:
Do I have to give OP6T's IMEI or my SIM's IMEI? My sim works on an iPhone 8 previously.
[OnePlus 6T  Questions & Answers] SquireSCA:
Trying to decide if I should take the plunge here with the OP6T... Currently on an iPhone XR and my daughter in law smashed her phone and can't afford one. So if I am gonna help her out, I figure why not get myself a new phone and give her the 4 month old XR...

I love OnePlus, but the historical lack of VoLTE on AT&T has been a bummer. I don't really need Wifi calling, but I do want HD calling and to be able to be on the phone and tether from time to time and not have the data drop to HSPA...

That said, I don't want to have to fiddle to much with this... If I can just take my current SIM from my XR and pop it in and go and toggle the phone settings and have HD Calling and simultaneous voice and 4G data work, then I am sold. But my concern is that it works at first, and then 2 weeks later their network scans my device or whatever and finds that the IMEI doesn't match and resets my account and then provisions it so that I lose those features...

Or, I could just upgrade to the XS Max and stay with apple and give her my XR.

I love OP phones, but I don't really want to downgrade my service and features in order to get one, even if the price is right...
[OnePlus 6T  Questions & Answers] Frankenscript:
I'm on ATT but haven't bothered with VOLTE yet. My understanding is that if you have a SIM from a device that has been working with VOLTE you can pop it into the 6T, type the code I need the dialer to enable the option in the menus, then go to the SIM menu and turn it on. Less than two minutes' work.

The challenge is that if your sim is not yet provisioned for VOLTE then getting AT&T to turn it on and provisioned is a hoop jump.

PS. I absolutely Love the 6T. It is blazing fast and works fabulously on the ATT network. Best data speeds I've ever seen.
[OnePlus 6T  Questions & Answers] SquireSCA:
Yeah, I wanted to pull the trigger but after thinking about it, I just decided to give her my XR and I went with an XS Max for now... I will make it back to Android in the fall, likely a OP phone or the next Pixel... For now I do use the Apple Watch 4 a lot and this phone supports Wifi Calling and VoLTE and all that, so I just went that route. Thanks for the info, though.
[OnePlus 6T  Questions & Answers] ma678:
Does anyone enable volte by swapping to different profile? It usually switches back to the original overseas commercial LTE profile after os update; however, it doesn't revert on ob5 and ob6. I even flashed full ob5 zip. Os doesn't bring the original profile back. Is it normal? Thanks
[OnePlus 6T  Questions & Answers] mccain.chase1@gmail.com:
Verizon has a setting that customer service can turn on for your phone to receive texts and send them. I had the problem but got it fixed pretty quick. Download the tech Coach Verizon app. They'll help you
[OnePlus 6T  Questions & Answers] Butterwhales:
I managed to get VOLTE to work with verizon doing both the *#800# and *#*#4636#*# however no luck yet with wifi calling
[OnePlus 6T  Questions & Answers] pro4ever:
Pre ordered mine so i can collect from o2 uk. £499 :D
[OnePlus 6T  Questions & Answers] non1oson:
which one? student beans do 10% discount on oneplus uk website