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[Q] VoLTE on Unlocked (T-Mobile)

I have the Unlocked A9 and I'm using it on T-Mobile USA.
Setting--> Mobile Data--> Voice over LTE is checked.
VoLTE worked with original firmware, but with the November Security Update (639737.6), it no longer works for me. (VoLTE = calls made under 4G LTE. When I make phone calls now, it changes to 4G even though I have 4 bars 4G LTE).
Please let me know if it works for you. Thanks.

I'm still waiting for my unlocked A9 for use on T-Mobile, so I can't give you another example.
I have read that there is no such thing as 4G voice, only (4G) VoLTE. (4G = LTE = data only.) If it is 4G (i.e. data) and doesn't support VoLTE then it must be using a 2G (GSM) band for voice. If it is showing 4G when you are talking then I think it must be VoLTE. At least that is how I understand things.

I'm on the latest ota update for the unlocked version and VoLTE works fine for me. I was concerned unlocking the bootloader would change that but i just completed that and calls still go over lte
In fact I've left my phone in lte only mode for the past week

treeco72 said:
I'm on the latest ota update for the unlocked version and VoLTE works fine for me. I was concerned unlocking the bootloader would change that but i just completed that and calls still go over lte
In fact I've left my phone in lte only mode for the past week
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Click to collapse
Thanks for the input. Based on our info, I'm surprised that VoLTE does not work for me. When I make a call the 4G LTE goes to 4G meaning that it's a GSM call (not through data.) (LTE Discovery confirms this, as the LTE radio shuts-off during the call.)
I might factory-reset my phone and start from the beginning. Not happy, since this is hours of work...

razpuli said:
Thanks for the input.
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Have you tried different cell sites? Perhaps your phone finds the current lte connection to be unsuitable for volte.

treeco72 said:
Have you tried different cell sites? Perhaps your phone finds the current lte connection to be unsuitable for volte.
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Could be, but I have a Samsung Avant sitting next to it, and the Avant's VoLTE works while on my A9 it does not. Speed test results are similar for the phones, so I know that the connection is good.
Just got off the phone with T-Mobile, they transferred me to HTC tech support. HTC wasn't much help (just reading from a computer screen). The tech promised that a level 2 support person would call me in the next 24-72 hours.

treeco72 said:
I'm on the latest ota update for the unlocked version and VoLTE works fine for me. I was concerned unlocking the bootloader would change that but i just completed that and calls still go over lte
In fact I've left my phone in lte only mode for the past week
Click to expand...
Click to collapse
Thanks for all your help. When I read that you are on the latest ota update and your VoLTE works, I suspected it was my phone. Well, I factory-reset my A9 this morning, and VoLTE works now.
BTW, no call from HTC. You would think that they would be interested in helping buyers of their new flagship phone, but nothing.

razpuli said:
BTW, no call from HTC. You would think that they would be interested in helping buyers of their new flagship phone, but nothing.
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I think they are buried. I have tried emailing them this week about accessories, also tried their chat support, and just nothing. And still no shipping date for my unlocked garnet of 23 Oct. I really don't think they were ready for this introduction and the demand that followed. I just hope the phone is worth it.
Greg

CarinaPDX said:
I think they are buried. I have tried emailing them this week about accessories, also tried their chat support, and just nothing. And still no shipping date for my unlocked garnet of 23 Oct. I really don't think they were ready for this introduction and the demand that followed. I just hope the phone is worth it.
Greg
Click to expand...
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I like the A9 a lot. Coming from a Samsung S4, the signal strength is OK, but I am very pleased with the battery -- it last all day for me. Screen is bright, camera is good, and it has the latest Android.

razpuli said:
I have the Unlocked A9 and I'm using it on T-Mobile USA.
Setting--> Mobile Data--> Voice over LTE is checked.
VoLTE worked with original firmware, but with the November Security Update (639737.6), it no longer works for me. (VoLTE = calls made under 4G LTE. When I make phone calls now, it changes to 4G even though I have 4 bars 4G LTE).
Please let me know if it works for you. Thanks.
Click to expand...
Click to collapse
can you tell me your apn settings for t-mobile on a AT&T unlocked a9?

Verizon Pixel phones are getting their own Android 7.1.2 build (NHG47K)

I own Verizon Pixel, but I use it on T-Mobile. Maybe someone who knows can comment if my device will get that new build(NHG47K) or this is strictly for users that use Verizon sim.
http://www.gsmarena.com/verizons_pi...2_builds_rolling_out_right_now-news-24440.php

Charkatak said:
I own Verizon Pixel, but I use it on T-Mobile. Maybe someone who knows can comment if my device will get that new build(NHG47K) or this is strictly for users that use Verizon sim.
http://www.gsmarena.com/verizons_pi...2_builds_rolling_out_right_now-news-24440.php
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I bought my pixel from Verizon and I'm using the N2G47E build without issues.

Jabawockee said:
I bought my pixel from Verizon and I'm using the N2G47E build without issues.
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Are you using your phone on Verizon?

Charkatak said:
Are you using your phone on Verizon?
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Yes.

Jabawockee said:
Yes.
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Would be interesting to see if you will get the new build: NHG47K

Verizon Pixel on Verizon with N2G47E as well though I did the OTA manually rather than wait for it to appear. I do this every month. Have had no issues with the phone.
Much prefer to do updates on my schedule rather than on someone else's in case there is issues with the update.

got mine through verizon. dloaded and installed nhg47k yesterday. nothing bad to report.

I got a Google play store pixel and I use it on Verizon I also received the Verizon build is there any differences

snoopy1e11 said:
I got a Google play store pixel and I use it on Verizon I also received the Verizon build is there any differences
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So looks like users on Verizon network are getting this build. Link in the first post shows change log.

It does work pretty good so far as I can tell very smooth

I updated and my VOLTE is broken . I factory reset and still nothing. Verizon said it's a known issue

Does anyone have a download link to the Verizon specific OTA, please?
Sent from my Pixel using Tapatalk

parmend said:
I updated and my VOLTE is broken . I factory reset and still nothing. Verizon said it's a known issue
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A couple of things that may help you out on the VoLTE option, including bringing back HD Voice calling and Video Calling. Same thing happened to me on the new build. I went into the the *#*#4636#*#* Phone information menu and ensured that VoLTE Provisioned and other options are turned on. For me I need to decline the HD feature and re-enable...for you probably a call to Verizon. Takes just a few moment to do and didnt have to reboot. Viola' HD Voice and Video Calling were back. Good luck

b00ster23 said:
A couple of things that may help you out on the VoLTE option, including bringing back HD Voice calling and Video Calling. Same thing happened to me on the new build. I went into the the *#*#4636#*#* Phone information menu and ensured that VoLTE Provisioned and other options are turned on. For me I need to decline the HD feature and re-enable...for you probably a call to Verizon. Takes just a few moment to do and didnt have to reboot. Viola' HD Voice and Video Calling were back. Good luck
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Thanks that worked!!!

Joe92T said:
Does anyone have a download link to the Verizon specific OTA, please?
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Click to collapse
https://developers.google.com/android/ota

after 2 days im convinced i get a: better battery life b: faster fingerprint unlock c: overall moar butter

snoopy1e11 said:
I got a Google play store pixel and I use it on Verizon I also received the Verizon build is there any differences
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The only difference between N2G47J and NHG47K is the radio image (modem.img). NHG47K has a newer radio.

Sounds bout right

The K update has done nothing for the weak cell signal. Time will tell if it does anything about dropped and missed calls.

Droid1019 said:
The K update has done nothing for the weak cell signal. Time will tell if it does anything about dropped and missed calls.
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I never had such problems even with old firmware versions. I know that some people have them, but it looks like these issues are location dependent, so I wouldn't expect updates to fix it.

WiFi Calling

I contacted Essential support and asked if the phone would support WiFi calling. They responded yes but to contact the carrier to make sure. I am currently on Verizon so I contacted Verizon and they said yes it did support WiFi calling. I was a bit skeptical but I had the agent verify the phone model number. Hopefully this is accurate. I finalized my pre-order right after.
I would take this for what its worth until we have the device in our hands and can make sure. I just thought I would share.
Chat Transcript
Verizon
Thank you for contacting the Verizon Wireless Chat Team regarding your device. How can we help you today?
You
I am thinking of buying the new Essential phone. I was wondering if it will support WiFi-Calling on Verizon
You
https://www.essential.com/
Verizon
That is a great question I will be glad to look into that for you today
You
It says it will support Verizon. I would like to know if it supports the WiFi Calling on Verizon. My signal is very poor at my house and work.
Verizon
Understood let me double check on the WiFi calling feature
You
thank you
Verizon
My pleasure
Verizon
I do see here that WiFi calling is supported so you will perfectly fine to utilize that feature with Verizon
You
WiFi Calling is supported on the Essential Phone? What else does it say about the Essential phone?
Verizon
I can only view tech reports so I do see that the WiFi calling is supported any other questions I would need them to be specif so that I can search
You
I am just trying to make sure we are talking about the same device.
You
I see the model listed as: Essential PH-1
You
is that the same thing you have?
Verizon
While following the link this is the newest unlocked android the device screen is pretty big yes this is the PH-1
You
ok.. Sounds good.. Thanks for your help.
Verizon
No problem at all, was there anything else that I could assist you with today?
You
Nope. All set.. Have a good one.

Wifi calling
Thank you for posting that...I was looking into this myself and emailed essential, and have not recieved a response yet. Now the question is... Yet this phone, or wait for pixel 2

lankydakid said:
Thank you for posting that...I was looking into this myself and emailed essential, and have not recieved a response yet. Now the question is... Yet this phone, or wait for pixel 2
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Exactly my question as well... Anyone have a spec sheet comparison bw this and pixel 2?

Awesome. Hope this is true. Ordered mine, but if Volte and WiFi calling don't work I'll have to send it back.

Cowbell_Guy said:
Exactly my question as well... Anyone have a spec sheet comparison bw this and pixel 2?
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I don't know how anyone could have an accurate spec sheet comparison for a phone that has not been officially announced yet. It would just be speculation and leaks, which are often wrong.
That aside, I think if one is inclined to compare this phone to the Pixel 2 (as I am), why not just wait? It will be announced soon and then you can make an actual comparison between the two phones. Also hopefully by then the other colors will be available (since I don't like the glossy black or white colors).
Unless you desparately need a new phone now, I don't see the harm in waiting.

Thanks for sharing, I'm on Verizon as well, and I just ordered my essential ph-1. Hope that rep is correct and not just blowing smoke, but at least now I can be optimistic!

So the word on the street from the first folks that got their phone is no WiFi calling for Verizon. If that is the case my phone will be going back.

Does it work on T-Mobile?

km8j said:
Does it work on T-Mobile?
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Someone indicated that WiFi calling was working on T-Mobile.

WiFi and VoLTE does work on T-Mobile.

There is a WiFi calling option for att
Sent from my PH-1 using Tapatalk

branshaw09 said:
WiFi and VoLTE does work on T-Mobile.
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Both are also working for me on T-mobile.

is anyone having issues with rec'ing MMS messages while on wifi using stock messaging app

km8j said:
Does it work on T-Mobile?
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Yep it does

How can I tell if it's working? I cant find a setting and it doesn't show "wifi calling" on my home screen like it did on the pixel. I'm on tmo also.

branshaw09 said:
WiFi and VoLTE does work on T-Mobile.
Click to expand...
Click to collapse
Can confirm. TMobile and both appear to work properly.

Won't work on Verizon until it's certified
Sent from my PH-1 using Tapatalk

skinnytoo2 said:
Won't work on Verizon until it's certified
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Click to collapse
Hopefully it gets certified soon. Only feature that doesn't work for me on Verizon is WiFi calling. I actually get a bar of LTE in my house so it is ok for now. My ribs iPhone gets no service just like my s8 and pixel. I'm actually shocked I get any service, nobody does where I live.

Visual voicemail won't work either.
Sent from my PH-1 using Tapatalk

I cannot get wifi calling or voicemail (either proper voicemail notification or visual voicemail to work) with Verizon. Everything else seems to work fine.
Does anyone know which default network we should use for Verizon to maximize signal and battery? I am in a fringe area so small differences in reception is a big deal.
Thanks in advance.

Yall have these Verizon OnePlus 8 issues?

Is anyone else getting freezing using chrome browser? If so what browser do you recommend? I've tried Firefox to and Opera for some reason this phone hates. I don't get why this phone is so slow. Mine takes a minute to process anything. Really hope they fix these software hickups. I guess FR but that would be a big job. The battery consumption seems to be the only best feature on this phone.

Yes, seems like it's a OnePlus problem. No one has a solution that I've seen yet.
I just minimize Chrome and reopen it and it works again.

BeardKing said:
Yes, seems like it's a OnePlus problem. No one has a solution that I've seen yet.
I just minimize Chrome and reopen it and it works again.
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Click to collapse
It's not just on this phone. I just came from the Essential phone and Chrome's been doing that for months. It's Chrome, not the phone. I don't think the built in webview is playing nice with the os. Maybe try Chrome beta?
Question: are you using a custom DNS or VPN?

garywojdan81 said:
It's not just on this phone. I just came from the Essential phone and Chrome's been doing that for months. It's Chrome, not the phone. I don't think the built in webview is playing nice with the os. Maybe try Chrome beta?
Question: are you using a custom DNS or VPN?
Click to expand...
Click to collapse
It's also happening to me, I don't use any VPNs nor DNS. I think this is a OnePlus Problem, maybe they'll address it in the next update. Let's report this problem guys
Edit : I'm not on a Verizon version, mine is IN2010

Funny thing is whenever chrome freezes, going to the home screen and returning back to the app fixes the issue ??*

Raiz said:
It's also happening to me, I don't use any VPNs nor DNS. I think this is a OnePlus Problem, maybe they'll address it in the next update. Let's report this problem guys
Edit : I'm not on a Verizon version, mine is IN2010
Click to expand...
Click to collapse
It's not OnePlus, it's Chrome. Acts the same way on the Essential PH-1. Try Safari or Microsoft Edge browser, or any one that uses Android web view.
---------- Post added at 12:43 PM ---------- Previous post was at 12:43 PM ----------
alanjolly123 said:
Funny thing is whenever chrome freezes, going to the home screen and returning back to the app fixes the issue ??*
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Click to collapse
Same here

Any fix?
Sent from my IN2015 using Tapatalk

TeamHackura said:
Any fix?
Sent from my IN2015 using Tapatalk
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Click to collapse
The fix is to install another web browser, then go to apps in the settings and inactivate Chrome. Haven't had single hickup since I did this.

gerhard_wa said:
The fix is to install another web browser, then go to apps in the settings and inactivate Chrome. Haven't had single hickup since I did this.
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Nice. Glad I came across this noticed it instantly when I first got this phone back in April course I couldn't find anything about it then. And oddly it seems like it is way worse and 90htz. Was about to return too vzw. Honestly was thinking it may be a device issue Till I read posts Any suggestions? Gonna try brave

Not really sure where to ask this question but Verizon OnePlus 8 UW. No root or anything outta the norm. Constantly having intermittent data loss, intermittent hotspot loss, calls and texts as well I'm sure since they pushed an update couple weeks back. Message I get from there network troubleshooter says( Your phone can't auto switch too a faster network if it's available. Your better off too use Cdma/Lte or global mode for better signal strength). Far as I know Cdma had been reserved for EMT/Fire etc. Problem seems too arise only when the silly 5g icon comes up. So thinking when it tries too switch too 5g its having that intermittent loss going back to global mode an getting hung up somehow as a simple restart fixes it temporarily. If I was rooted I believe a prl or apn change would fix it maybe. So tired of dealing with Verizon techs, Any help it fix would be great

SPEED_RACER_5.0 said:
Not really sure where to ask this question but Verizon OnePlus 8 UW. No root or anything outta the norm. Constantly having intermittent data loss, intermittent hotspot loss, calls and texts as well I'm sure since they pushed an update couple weeks back. Message I get from there network troubleshooter says( Your phone can't auto switch too a faster network if it's available. Your better off too use Cdma/Lte or global mode for better signal strength). Far as I know Cdma had been reserved for EMT/Fire etc. Problem seems too arise only when the silly 5g icon comes up. So thinking when it tries too switch too 5g its having that intermittent loss going back to global mode an getting hung up somehow as a simple restart fixes it temporarily. If I was rooted I believe a prl or apn change would fix it maybe. So tired of dealing with Verizon techs, Any help it fix would be great
Click to expand...
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Got this same issue

garywojdan81 said:
Got this same issue
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Sorry ta hear I've done a lot of searching and can't seem to resolve it. Dealing with Verizon it's just getting so old I believe I'm going to just try an root, flash, etc. That or go T-Mobile. If I may ask are you in the States? I'm in Florida btw. Very populated city Clearwater is a big fact and it's a problem all around

I've had Verizon family plan for 20 years now. So I have to deal with it. I remember buying old Galaxy s3 and moding the hell out of it. But I'm older and don't have time like I did when I was younger so I'm stuck. The problems on my OP8 5G UW just accelerated. I'm pretty sure it's software related. Last system update was a "network improvements" haha- yeah right! Since after I've been in hours and hours in Verizon chats, calls, I've spoke to OnePlus techs, I've done replacements, sim swaps, clean resets. Nothing is working to resolve my 1mbps download speed network is slow as hell, 17 Meg's 20 min. Tomorrow I'm talking Verizon tech to get my 4th replacement turned in and hopefully get a Galaxy S10 FE. I always wanted ONEPLUS but not this way. I'm done

SPEED_RACER_5.0 said:
Sorry ta hear I've done a lot of searching and can't seem to resolve it. Dealing with Verizon it's just getting so old I believe I'm going to just try an root, flash, etc. That or go T-Mobile. If I may ask are you in the States? I'm in Florida btw. Very populated city Clearwater is a big fact and it's a problem all around
Click to expand...
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I'm in Frederic Michigan, near Grayling. Rural area, but Verizon is king up here. And, with a low population density, I've had really great service for years. Up until recently. Wife has a Galaxy Note 9 and doesn't have half the issues.

So update. I wasn't allowed to move on to another phone with old big red. I exhausted my replacements with Verizon my only option now is to pay this off and move on. I did get some slight improvements turning the automatic to manual in Network Mode. It seems like I don't have the constant 5g/4g fight. As for original topic, I use the Samsung browser and I don't have any hanging or freezing.

Yea I'm kinda and the same boat got a phone didn't work good paid it off early got the OnePlus and now this I did switch to manual too and it helped a little bit. But not a lot we can do I definitely won't be buying any more Vzw phones. I can't even maintain consistent hotspot for over 30 40 minutes ever since past update. I have the 5G icon now that's not really 5G speed at all. I've gotten true 5G on this phone a couple times and it's amazingly fast. The 5G icon fades an drops too 4g when it does it kicks me off discos hotspot an network sometimes. I just don't have the will to deal with tier 3 tech anymore lol. I had prepaid for seven years with Verizon and it worked flawless many different phones over the years soon as I got postpaid went to hell

SPEED_RACER_5.0 said:
Sorry ta hear I've done a lot of searching and can't seem to resolve it. Dealing with Verizon it's just getting so old I believe I'm going to just try an root, flash, etc. That or go T-Mobile. If I may ask are you in the States? I'm in Florida btw. Very populated city Clearwater is a big fact and it's a problem all around
Click to expand...
Click to collapse
I'm in New Orleans and delt with all Network connection problems too. I'm on my 3 rd replacement and spent hours, days, and weeks ping-ponging through Verizon finest bull**** techs, Verizon sent me to OnePlus tech where the tech there referred me CDMA LESS and after a long work about found out that I was already on CDMA LESS. The only thing that helped other than bazilion factory resets and it's not the solution by any means is turn the automatic best Network set it to manual Verizon 4g. You still get the stupid 5g emblem but I've noticed an improvement as in connectivity. Not stable, I get interference and dropped calls all the time. Also i read something on how Verizon used cheaper antennas for their fake 5g push. Also could this be a conflict with Oxygen? I'm reading a lot of similar Network issues after updates.

Right on thanks, Not sure if manual mode actually sticks. Does it just switch back? But yes I too figured it'd help out. When I do let's say Run a diagnostic from Verizon's app one of the first things it says is this phone cannot auto connect to use lte/cdma for better signal. And that's wild it's connected and automatic mode. So it's obvious it's a hardware issue or software issue on their end. If they would allow you to control the phone we could fix it. Just got my first replacement today. Fixing the boot it up soon and see what the deal is software wise etc etc. The connectivity issue were both having is just 1 issue lol. I've got six or eight more easy. Mine seems like it's good data connection wise either with the fake 5g icon or without it. Bars will start fluctuating pretty rapidly (It's searching) I'll lose the 5G icon in turn lose hotspot lose date connection etc. Then it will come back with no 5G icon, connect, Be gr8 for about 10min or I reset prl & net setting. Someone tell me there 5g for most parts like here & there is basically just a glorified 4G LTE. There 5g coverage map clearly says or did there's no 5g here. I believe this to be true as I have connected to real vzw 5g in Tampa an you can tell big time!! This 5g even with there signal booster they sent me is not any if all better than 4g. Could kinda care less about the 5g it's the consistent intermittent network issues. Pls lmk what you find out either by p.m. or what have ya. I'll do the same. I'm gonna try this new vzw root I believe an switch too global or whatever I need too do weather it voids certain things or not lol. Sorry 4 the long read but wanted give ya what I knew. Here's a shot of there diagnostic mess. From vzw. An a shot of real 5g speed test before the updated deal that displays the 5g icon

Does wifi calling work on T-mobile?

I know in the past, the only way to get wifi calling on T-mobile was to buy the phone directly from them with the feature pre-installed. Unfortunately, T-Mobile isn't selling the 4a, so that's not an option. Can anyone confirm or deny whether wifi calling works (or can be made to work) with a T-mobile sim?

candre23 said:
I know in the past, the only way to get wifi calling on T-mobile was to buy the phone directly from them with the feature pre-installed. Unfortunately, T-Mobile isn't selling the 4a, so that's not an option. Can anyone confirm or deny whether wifi calling works (or can be made to work) with a T-mobile sim?
Click to expand...
Click to collapse
It works. I have it enabled right now.

the.emilio said:
It works. I have it enabled right now.
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Click to collapse
Thanks, that's exactly what I wanted to hear.
Did you have to do anything special to get it working, or did it just work out of the box?

candre23 said:
Thanks, that's exactly what I wanted to hear.
Did you have to do anything special to get it working, or did it just work out of the box?
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Click to collapse
Worked and enabled out the box.

Perfect. Placing order now.
My Nokia 6.1 has been a trooper for the last couple years, but I could definitely do with an upgrade - especially with updates ended and patches ending soon.

candre23 said:
Perfect. Placing order now.
My Nokia 6.1 has been a trooper for the last couple years, but I could definitely do with an upgrade - especially with updates ended and patches ending soon.
Click to expand...
Click to collapse
Good deal. Just got mine the other day and really enjoying it. Got bored with my iphone pro. Just for your reference I took a screenshot of the settings.

Got it yesterday and can confirm that yes, wifi calling does work on t-mobile out of the box.