Database Users

AT&T LTE Question

Quick question, I just got my moto x pure today and swapped my AT&T sim card from my note 5. I noticed when I make calls I use the HSPA network and not LTE. Any thoughts? I figured I would ask here first prior to dealing with AT&T directly.

Did it operate the same way in your Note 5? I use T-Mobile and it has always operated like that for me on all my devices and it will go back to LTE when the call is complete.

I believe that's to be expected. That's how both my S6 and OnePlus One were/are. (On AT&T)

My M8 does that as well. I don't know that AT&T has enabled VoLTE yet.
Sent from my HTC One_M8 using XDA Free mobile app

Moto X Pure does not support volte on ATT yet.

That makes complete sense, I'll have to swap my sim back to the note5 and see if it supports volte. Bummer though, its useful in some situations when traveling.

xbrandx said:
Quick question, I just got my moto x pure today and swapped my AT&T sim card from my note 5. I noticed when I make calls I use the HSPA network and not LTE. Any thoughts? I figured I would ask here first prior to dealing with AT&T directly.
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Every phone I've had that didn't use "Stock" At&t signal bars, due to running a custom ROM, switched to HSPA.
This is completely normal behavior.

I agree with EVERYONE here. This has been the same since AT&T deployed LTE. No calls take place over LTE. The calls rely on the HSPA network. Once the call is over, LTE displays very quickly. Nothing to worry about OP.

Anyone can confirm if Band 12 works with a tmobile Sim?

Will this phone work on Verizon?

If you use this phone on Verizon, does it work properly? Did you need to do anything to the phone to make it work? Total noob here. Thanks for your help!

Sorry to post twice... The model I'm looking to use on Verizon is the 128GB global version.
I know Verizon can be a difficult carrier in terms of compatibility, so I thought it was worth asking. Thanks!

mrsardy said:
Sorry to post twice... The model I'm looking to use on Verizon is the 128GB global version.
I know Verizon can be a difficult carrier in terms of compatibility, so I thought it was worth asking. Thanks!
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As long as the phone has proper band support and is unlocked, you can pop in your SIM card and be good to go. I checked the phone on the willmyphonework website, and it has all the bands for full Verizon support. So the global version will definitely work on Verizon. You just most likely won't have VoLTE or HD Voice calls.

Yes it works fine, including HD calls/VoLTE as long as VoLTE is configured properly in your Verizon account (this might occur automatically but I'm not sure).
1X and EvDO also work great and reception is very good.
I've attached a screenshot below with a Verizon prepaid SIM installed and VoLTE active in settings.
I don't think Verizon would activate a SIM with the Mi Note 2's IMEI(s) though...so you'll almost surely need a pre-activated SIM from a different Verizon-approved device.

If I switch my SM-950U1 unbranded to AT&T ROM, will I get wifi calling and HD voice?

If I switch my SM-950U1 unbranded to AT&T ROM, will I get wifi calling and HD voice?
I have an unbranded SM-950U1 on AT&T. The phone works fine for calling (non-HD), LTE, and everything else. The only two things that don't work are wifi calling and HD voice. If I switch to an AT&T ROM, will I get wifi calling and HD voice?
I've read lots of posts saying it should work, or that it shouldn't work, or that it might work, or that somebody had a friend it worked for, or that somebody heard of somebody where it worked for three days, and then stopped. I've heard that I need to give AT&T an AT&T branded IMEI number to associate my sim with, but that will only make it work for a week.
What is the truth? This phone has been out for over a year, somebody must have put an unbranded U1 on an AT&T ROM by now.
I know I can try it and see, but if there is a definitive answer then I know to either go through the trouble, or not bother. I'm hesitant to wipe, because I've never wiped this phone, been through the beta and oreo and everything, and it's working great, with good battery life. My only problem is that I'm occasionally in buildings with wifi coverage, but poor mobile reception, and would like wifi calling in those situations. If I can get wifi calling then it's worth the trouble of wiping, and dealing with AT&T bloat.

J M L said:
I have an unbranded SM-950U1 on AT&T. The phone works fine for calling (non-HD), LTE, and everything else. The only two things that don't work are wifi calling and HD voice. If I switch to an AT&T ROM, will I get wifi calling and HD voice?
I've read lots of posts saying it should work, or that it shouldn't work, or that it might work, or that somebody had a friend it worked for, or that somebody heard of somebody where it worked for three days, and then stopped. I've heard that I need to give AT&T an AT&T branded IMEI number to associate my sim with, but that will only make it work for a week.
What is the truth? This phone has been out for over a year, somebody must have put an unbranded U1 on an AT&T ROM by now.
I know I can try it and see, but if there is a definitive answer then I know to either go through the trouble, or not bother. I'm hesitant to wipe, because I've never wiped this phone, been through the beta and oreo and everything, and it's working great, with good battery life. My only problem is that I'm occasionally in buildings with wifi coverage, but poor mobile reception, and would like wifi calling in those situations. If I can get wifi calling then it's worth the trouble of wiping, and dealing with AT&T bloat.
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It all depends on if you are using AT&T's prepaid or postpaid service. If you're using AT&T prepaid, then you probably won't be able to get wi-fi calling on your phone. If you're on AT&T's postpaid service then you should be able to get wi-fi calling on your phone. I know this from my own personal experience. I had their prepaid service and couldn't get wi-fi calling to work on my phone. When I switched to their postpaid service then I was able to get the wi-fi calling to work for me.
Cindy
Sent from my SM-G950U using Tapatalk

cindylike24 said:
It all depends on if you are using AT&T's prepaid or postpaid service. If you're using AT&T prepaid, then you probably won't be able to get wi-fi calling on your phone. If you're on AT&T's postpaid service then you should be able to get wi-fi calling on your phone. I know this from my own personal experience. I had their prepaid service and couldn't get wi-fi calling to work on my phone. When I switched to their postpaid service then I was able to get the wi-fi calling to work for me.
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Thanks for your answer. Yes, I do have a postpaid plan. Do you have a 950U1 you converted to AT&T, or do you have a 950U AT&T that you converted from pre- to post-paid?

J M L said:
Thanks for your answer. Yes, I do have a postpaid plan. Do you have a 950U1 you converted to AT&T, or do you have a 950U AT&T that you converted from pre- to post-paid?
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I have a SM-950U on the AT&T network.
Sent from my SM-G950U using Tapatalk

J M L said:
I have an unbranded SM-950U1 on AT&T. The phone works fine for calling (non-HD), LTE, and everything else. The only two things that don't work are wifi calling and HD voice. If I switch to an AT&T ROM, will I get wifi calling and HD voice?
I've read lots of posts saying it should work, or that it shouldn't work, or that it might work, or that somebody had a friend it worked for, or that somebody heard of somebody where it worked for three days, and then stopped. I've heard that I need to give AT&T an AT&T branded IMEI number to associate my sim with, but that will only make it work for a week.
What is the truth? This phone has been out for over a year, somebody must have put an unbranded U1 on an AT&T ROM by now.
I know I can try it and see, but if there is a definitive answer then I know to either go through the trouble, or not bother. I'm hesitant to wipe, because I've never wiped this phone, been through the beta and oreo and everything, and it's working great, with good battery life. My only problem is that I'm occasionally in buildings with wifi coverage, but poor mobile reception, and would like wifi calling in those situations. If I can get wifi calling then it's worth the trouble of wiping, and dealing with AT&T bloat.
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Did you ever get Wi-Fi calling etc. to work? I also have an unlocked S8 (SM-950U1) direct from Samsung and would like to have these features work. I've online chatted with multiple techs, received a new SIM card and still can't get it.
I've read things about changing my CSC and flashing an AT&T ROM but would also like a definitive answer.

The_Big_H said:
Did you ever get Wi-Fi calling etc. to work? I also have an unlocked S8 (SM-950U1) direct from Samsung and would like to have these features work. I've online chatted with multiple techs, received a new SIM card and still can't get it.
I've read things about changing my CSC and flashing an AT&T ROM but would also like a definitive answer.
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No, I never got it to work, but I didn't try installing the AT&T rom. I did try giving AT&T the IMEI number from an AT&T branded S7, but that didn't work. After they made the switch, my phone had lots of trouble with the network for about 15 minutes, and then it started working again. My web profile at AT&T also switched from S7 back to unknown, so I'm guessing their systems picked up I was using a different IMEI.

U.S. ATT Compatibility experiences so far? And unlock experiences?

Hi folks,
Considering getting a 6T off the OnePlus site.
For those that got the devices early:
-Do you have experiences on AT&T Network to comment on how compatible it is? I've had some devices use to work well on ATT now not so good due to band migration; just curious to hear how the 6Ts fare.
-Please confirm: both SIM and BootLoader unlocks can be done immediately when purchasing from the OnePlus site (as opposed to the T-Mobile edition that's locked)
-Are there band/frequency differences between the T-Mo and ATT Versions? I'm on ATT but usually have bought "T-Mo" versions of devices because they were less likely to be BL locked; but my last phone (OP3T) broke me out of that cycle.
Any other AT&T-relevant experiences would be appreciated.

Interested in this as well.

I would like to know as well. It's kinda looking like we will have to test it out ourselves.

I am on AT&T with the 6t. I've only had mine for a week but have had no issues with anything network related. I came from a 3T and have better service with my 6T. There were 2 dead spots on my drive to / from work with the 3T that I no longer have with the 6T. I haven't had a chance to root or unlock mine yet due to being busy at work but so far I am happy. I loved the 3T but don't miss it a bit.

I have a 6t that I bought directly from OP that I use as my daily phone on Cricket, which uses AT&T towers. I have no signal problems, and download speeds are great. Anywhere I expect to have LTE I have it.
Phone is by far my favorite device I've had. Easy to unlock, install TWRP and flash kernels, and install mods through magisk!

I've bought my phone but don't get to open it until Christmas. It should arrive in a day or two. [emoji1360][emoji1360]
Sent from my ONEPLUS A3000 using Tapatalk

Works perfectly. Even gets VoLTE calls

Did you do anything special for volte per some of the threads? Also, does ATT visual voicemail work fine without a fuss? It's working well on my rooted 3T.
Sent from my ONEPLUS A3000 using Tapatalk

Funk2641 said:
Works perfectly. Even gets VoLTE calls
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What did you do to get volte? Was your previous phone an att branded device? I came from an unlocked S8 that didn't get volte and I can't get volte on my 6T. Prior to my S8 I had the 6P which also didn't get volte.

I suggest reading this thread, https://forum.xda-developers.com/oneplus-6t/help/att-verizon-volte-vowifi-calling-t3860031. There's information on how to enable VoLTE settings on the phone. Most of the stuff in that thread pertains to Verizon, but some AT&T stuff too. Ultimately it's up to AT&T to provision your service properly. VoLTE is available. VoWiFi is not. Took me a couple of days & a couple of hours on the phone with AT&T support to get my line provisioned properly because the IMEI wasn't recognized. But that was only days after the phone was released. Would think that shouldn't be a problem now.
Once you get VoLTE working Visual Voicemail should work, but you need to use the AT&T app. However, for me it isn't always automatically retrieving VMs when I get them. My notifications will show I have a VM but I have to open the AT&T VVM app, go into the menu and Refresh. Only then does it pull the VM into the app.

This should be interesting. On my 3T I have ATT visual voicemail working, and it mostly works for transcribing messages (except long ones like my wife leaves...) But I don't think the phone is volte capable so I've never tried setting that up. I don't get to play we the phone til Xmas though!
Sent from my ONEPLUS A3000 using Tapatalk

Frankenscript said:
This should be interesting. On my 3T I have ATT visual voicemail working, and it mostly works for transcribing messages (except long ones like my wife leaves...) But I don't think the phone is volte capable so I've never tried setting that up. I don't get to play we the phone til Xmas though!
Sent from my ONEPLUS A3000 using Tapatalk
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Yeah. I came from using a 5yo AT&T branded HTC One M7 and VVM worked fine on that. When I first got the 6T (unlocked int'l version) & popped in my sim, I had VoLTE but I couldn't get the VVM app to activate. That's what prompted my call to AT&T support. That's when they told me VoLTE was needed for VVM. I'm not entirely sure how accurate that statement is. The rep tried a bunch of stuff to get it working, including updating my line with the IMEI from the 6T. That's when things went bad. I lost all data completely. Actually, if I switched APNs, I could get 3G data. But it took two days before AT&T sorted it out and I got LTE back. Since then everything pertaining to AT&T service has been fine. I've never found the need for VoWiFi, although it would be cool to have, if necessary. And I wish their Advanced Messaging feature wasn't so limited.

Frankenscript said:
Hi folks,
Considering getting a 6T off the OnePlus site.
For those that got the devices early:
-Do you have experiences on AT&T Network to comment on how compatible it is? I've had some devices use to work well on ATT now not so good due to band migration; just curious to hear how the 6Ts fare.
-Please confirm: both SIM and BootLoader unlocks can be done immediately when purchasing from the OnePlus site (as opposed to the T-Mobile edition that's locked)
-Are there band/frequency differences between the T-Mo and ATT Versions? I'm on ATT but usually have bought "T-Mo" versions of devices because they were less likely to be BL locked; but my last phone (OP3T) broke me out of that cycle.
Any other AT&T-relevant experiences would be appreciated.
Click to expand...
Click to collapse
On att rn. Have been since the op2. No issues at all ? first thing I do is unlock bootloader

I got my 6T (Int'L) on or about Nov. 23, which I had purchased from OT - I am using it on a Family mobile plan which uses T-Mobile towers. VoLTE was not a part of my original service plan..but because I needed a New Nano-SIZED sim card for this phone, adding it to my account wasn't as straight forward as it normally is. Once I switch my number to the new sim card, I got an email saying if I wanted VoLTE/VoWiFi(?) features turned on - I'd have to go to another website (Cricket/Verizon/ AT&T?) to register my new sim card and this would "turn on" the VoLTE features. After all this I get a Bright "VoLTE" Icon on the status bar whever i get my LTE signals - So it is VoLTE capable. Perhaps AT&T is doing something similar to get your VoLTE activated?

My plan is to do some testing next week for basic stuff before transferring my flag from my 3T. Will report back how it goes. Appreciate any other Insights from other users!
Sent from my ONEPLUS A3000 using Tapatalk

Fired mine up yesterday when I got it. Got it all set up, then swapped out the SIM from
my Mate 9, to the OP6T this morning. Apparently the "speed" issues I had with the 9
are corrected with the 6T. I use a Straight Talk MVNO (tracfone) at&t card. Previously,
I was LUCKY to get between 9-10 meg down, 1-2 up. Now I'm getting 33 meg down, 15 up.
Guess the newer phone has a better modem, or the extra frequencies to work more proper
with the newer device.
So far, no issues, working good.
After my experience with the OnePlus One, I was still a little cautious about buying something
from them again, but, on the surface so far it appears they might have their act together.
Stay tuned.

I came from a OP3 been using the 6T with ATT prepaid for the past month and it works great. Far superior in speeds to the OP3. For example at my house I was getting download speeds of about 30mbps on my OP3 on the 6T I got over 90mbps LTE+ at home! I keep pissing off my buddy who just got the brand new iPhone XS on ATT and he is getting half the DL speeds that I am when comparing speed tests :victory:. Don't think VoLTE works on prepaid but I have yet to try to enable it. About to go to nebraska for vacation to test service out there.
Bootloader is very easy to unlock. Did it the second day of having the phone following the Official XDA employees youtube video.

UGH Again..No incoming text with OP8Pro on Verizon

I ordered ASAP via pre order and wanted to get the PHONE ASAP. Just got off the phone with Verizon Tier 1 and 2. Yes I know about the CDMA Less feature being added but since they did away with 3g thats no longer an option. My IMEI or this OP8 pro isn't on their approved list yet and it wont let them do anything else. I also tried to do this on my own verizon account and as soon as I put the IMEI# in it shows as not an eligible device. I am going to try and be patient as the phone so far ( NOT testing the camera yet) is buttery smooth. Anything else anybody can comment?

daillcyruz said:
I ordered ASAP via pre order and wanted to get the PHONE ASAP. Just got off the phone with Verizon Tier 1 and 2. Yes I know about the CDMA Less feature being added but since they did away with 3g thats no longer an option. My IMEI or this OP8 pro isn't on their approved list yet and it wont let them do anything else. I also tried to do this on my own verizon account and as soon as I put the IMEI# in it shows as not an eligible device. I am going to try and be patient as the phone so far ( NOT testing the camera yet) is buttery smooth. Anything else anybody can comment?
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That's why I would never use Verizon, and that's all I can say about that

cwalker0906 said:
That's why I would never use Verizon, and that's all I can say about that
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lol... I know I switched back to verizon for this apocolpyse lol ...I did have tmobile... since I love testing phonees out.. Just another sacrifice lol

Welp I figured I had nothing to loose so o tweeted OnePlus saying I couldn't get incoming text to work.... I got a reply tweet from Verizon saying to DM them . Afterb10 min and giving them my inei They fixed it and I asked them how they said they "refreshed the SMS over lte features".... I don't know why tier 1 and 2 didn't know that but ugh. Happy camper now .they did say though the device is t registering correctly ..waiting on more info

Does wifi calling work on Verizon for the OnePlus model that's the only way I'm buying an unlocked model?

ct_tec313 said:
Does wifi calling work on Verizon for the OnePlus model that's the only way I'm buying an unlocked model?
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No

Really ? that's some bull**** ????????

I am having the same issue on my OnePlus 8 pro. been on hold/phone for 2 hours so far with Verizon. No luck. They are sending my ticket up to engineers! Any advice??

joe1l said:
I am having the same issue on my OnePlus 8 pro. been on hold/phone for 2 hours so far with Verizon. No luck. They are sending my ticket up to engineers! Any advice??
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Did you see my 2nd post ? I tweeted one plus and Verizon contacted me and I was working with them on Twitter DM and the tech did this : refreshed the SMS over lte features and also mms over lte features they said.

yes i did exactly what dailycruz suggested. they refreshed my sms over LTE a bunch of times. I spent many hours today on the phone with Verizon last person I spoke to was from engineering and he told me that he could not enable cdma-less on my phone since it would not allow them to add a oneplus 8 Pro iemei into the system to activate. his suggestion was to activate a OnePlus 7 Pro (which i don't have) which is approved allowing them to enable CDMA-less option. then switch to OnePlus 8pro. I am super angry at this point.

daillcyruz said:
No
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Could someone try a call using Google Voice and see if WiFi calling works with that, please?

Google voice works to make wifi calls through the app but there's no wifi calling options in the OnePlus phone app that i can see.
Daillcyruz, what phone did you switch from? was Cdma-less enabled on your original phone?

joe1l said:
Google voice works to make wifi calls through the app but there's no wifi calling options in the OnePlus phone app that i can see.
I agree with this your using an app
Daillcyruz, what phone did you switch from? was Cdma-less enabled on your original phone?
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I was using an Samsung factor unlocked s20 ultra. So no didn't have cdma less enabled already

spotmark said:
Could someone try a call using Google Voice and see if WiFi calling works with that, please?
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I agree Google voice is just going thru an app.

daillcyruz said:
I agree Google voice is just going thru an app.
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Yes, it is. I used it exclusively so when I buy unlocked non-vzw phones I'll be able to still make WiFi calls. Even ported my number over to it.

daillcyruz said:
I was using an Samsung factor unlocked s20 ultra. So no didn't have cdma less enabled already
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Do you know by chance if Verizon enabled CDMA-Less on your OnePlus 8 Pro ?

Wow, this is a deal breaker for me. My work phone they can't enable CDMA-LESS on that line, they claim it's something about the type of business contract. So I'm having to carry my OP7P for my own, and another P3XL for work. When I saw that the OP8P supports Verizon's CDMA bands, I was like FINALLY I can carry one phone!!! (Once they activate the dual sim in the USA).
Do we know why this is NOT the case when we are being told otherwise? Anyone have any thoughts?

Surprisingly my OP8P worked just from sim swap. I am on a Verizon business account, account auto added
CDMA-LESS DEVICE PROVISIONING
CDMA-LESS ROAM TIER OVERRIDE
coming from a pixel 4 xl unlocked

joe1l said:
Do you know by chance if Verizon enabled CDMA-Less on your OnePlus 8 Pro ?
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No they said option no longer there

daillcyruz said:
No they said option no longer there
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So I have an update finally. My buddy in Orlando sent me his OnePlus 7 Pro to When I put my Verizon sim card in, i had same exact issue as my new OnePlus 8Pro, no SMS messages. I called back the engineer at Verizon who suggested I try this to begin with, and he was able to enable CDMA-Less feature this time with the OnePlus 7 Pro and my sim, since its MEID showed up in Verizon's system properly. As soon as he enabled CDMA-Less i was able to receive SMS messages on the OnePlus 7 PRO. I then immediately pulled the sim from 7 Pro and put it back into my One Plus 8 PRO and surprise surprise SMS/MMS messages started coming down!! I have no clue why they cant enable it on the new OnePlus 8 PRO and my phone still does not show up properly on My Verizon Device page ( the One Plus 7 Pro showed up perfectly).
This is a crazy work around and neither OnePlus nor Verizon was really much help on getting this to work. Maybe a new Sim would of done the trick but without being able to go to a Verizon store at the moment, it was just another shot in the dark.