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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
Click to expand...
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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...
Click to collapse
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
Are you using your phone on Verizon?

Charkatak said:
Are you using your phone on Verizon?
Click to expand...
Click to collapse
Yes.

Jabawockee said:
Yes.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
Thanks that worked!!!

Joe92T said:
Does anyone have a download link to the Verizon specific OTA, please?
Click to expand...
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.

HTC lying about AT&T "compatibility"

U11 does not support VoLTE on AT&T
U11 does not support WiFi-Calling on AT&T
U11 does not support Video Call on AT&T
U11 does not support Integrated Visual Voicemail on messages app like it use to on HTC One M7, M8 & M9, you need the stand alone app which is crap...
the phone works for calls data LTE works MMS haven't test yet I don't use them....
Topic: General

Is VoLTE band used by AT&T suppoeted by the U11 and is it available in your area?
Was Wifi Calling verified to be working on your Wifi network on other devices? If it is then could be a faulty software glitch. If not the it could be a blocked port or their service is down.
I'd contact HTC and AT&T and ask them for clarification. HTC had to do testing with AT&T and gotten the approval from them to claim compatibility.
As far Video Calling, that sounds more like a third-party app feature then HTC. I've never known HTC dialer app to support anything like that.
You might have done all of this, but your post doesn't have any thing to show investigations or troubleshooting. Just a rant post.
Help future users out by having details and things that were tried etc.

Tachi91 said:
Is VoLTE band used by AT&T suppoeted by the U11 and is it available in your area?
Was Wifi Calling verified to be working on your Wifi network on other devices? If it is then could be a faulty software glitch. If not the it could be a blocked port or their service is down.
I'd contact HTC and AT&T and ask them for clarification. HTC had to do testing with AT&T and gotten the approval from them to claim compatibility.
As far Video Calling, that sounds more like a third-party app feature then HTC. I've never known HTC dialer app to support anything like that.
You might have done all of this, but your post doesn't have any thing to show investigations or troubleshooting. Just a rant post.
Help future users out by having details and things that were tried etc.
Click to expand...
Click to collapse
Volte was working fine on my HTC 10 video call and Wi-Fi calling is been introducedon newest devices on AT&T since galaxy note 4 edge with is couple of years old and it does support both features
Sent from my HTC U11 using XDA Labs

I had my suspicions about this as well. An HTC rep told me directly that the U11 is certified to work with AT&T's VoLTE and Wifi Calling. Of course, when they told me that, I turned it around with something along the lines of "Yeah, I know it will support it from a hardware perspective, but AT&T only allows certain approved devices to use those features. Can you say with 100% certainty that the unlocked U11 will actually be allowed to take advantages of those features?" They responded that it would... 100% I still don't believe it, though, and I have a feeling I'll be sending my U11 back within the return period.

All of the same confirmed here.. no wifi calling or VoLTE.. as well as no Band 30 support. What a pain. On AT&T that is.. works fine on TMO.

We got to make them aware bug them on Twitter Facebook all social networks about it I did already but one voice is nothing compared to users complaining about it
Sent from my HTC U11 using XDA Labs

JEANRIVERA said:
We got to make them aware bug them on Twitter Facebook all social networks about it I did already but one voice is nothing compared to users complaining about it
Sent from my HTC U11 using XDA Labs
Click to expand...
Click to collapse
This is really really sad. I was going to buy the U11 with my Discover card's 1st year double cash back (would have covered the whole cost) that rolls into my account at the end of August... Figured S-OFF / Locked may be available by then too. But after reading about VoLTE and WiFi calling not working on AT&T, I'm having 2nd thoughts. I live in NJ so WiFi calling really isn't super important (we have amazing LTE coverage just about everywhere) but neither working?? That's really super beat man.
I also saw posts on AndroidCentral reporting the same thing, so I believe you guys that this is a real problem. Thread was titled "Where is the WiFi Calling setting?" Although one user said that VoLTE was working on the U11 / AT&T, another verified it does not. As bassoprofundo so accurately explained to the CS rep at HTC, a guy on the other forum thread also referenced how the advanced calling features on the U Ultra, although "supported" by hardware, didn't actually work on AT&T either.
At least the HTC 10 was an awesome enough phone that I don't mind continuing to use it for the next year to come. But still, I hope HTC and AT&T collaborate and get this solved... which unfortunately sounds unlikely. I really like the U11 and I haven't even seen it in person yet.
Plus ViperU is already out. I WANTS.
I'm praying that AT&T / HTC surprises us!!!

turbo jjjang said:
This is really really sad. I was going to buy the U11 with my Discover card's 1st year double cash back (would have covered the whole cost) that rolls into my account at the end of August... Figured S-OFF / Locked may be available by then too. But after reading about VoLTE and WiFi calling not working on AT&T, I'm having 2nd thoughts. I live in NJ so WiFi calling really isn't super important (we have amazing LTE coverage just about everywhere) but neither working?? That's really super beat man.
I also saw posts on AndroidCentral reporting the same thing, so I believe you guys that this is a real problem. Thread was titled "Where is the WiFi Calling setting?" Although one user said that VoLTE was working on the U11 / AT&T, another verified it does not. As bassoprofundo so accurately explained to the CS rep at HTC, a guy on the other forum thread also referenced how the advanced calling features on the U Ultra, although "supported" by hardware, didn't actually work on AT&T either.
At least the HTC 10 was an awesome enough phone that I don't mind continuing to use it for the next year to come. But still, I hope HTC and AT&T collaborate and get this solved... which unfortunately sounds unlikely. I really like the U11 and I haven't even seen it in person yet.
Plus ViperU is already out. I WANTS.
I'm praying that AT&T / HTC surprises us!!!
Click to expand...
Click to collapse
Data on LTE is different than VoLTE {Voice Over LTE} basically is VoIP but on a LTE connection don't get things messed up LTE data indeed does work just no VoLTE that means you will not be able to talk and browse at the same time with LTE speeds but 4G does the same thing just on a different speed
Sent from my HTC U11 using XDA Labs

Duplicate
But follow me on Twitter and retweet with me let's make our voices get heard please..
Twitter.con/jeanfrivera

JEANRIVERA said:
U11 does not support VoLTE on AT&T
U11 does not support WiFi-Calling on AT&T
U11 does not support Video Call on AT&T
U11 does not support Integrated Visual Voicemail on messages app like it use to on HTC One M7, M8 & M9, you need the stand alone app which is crap...
the phone works for calls data LTE works MMS haven't test yet I don't use them....
Topic: General
Click to expand...
Click to collapse
Did the HTC 10 support volte on att?
Sent from my Pixel using Tapatalk

JEANRIVERA said:
Duplicate
But follow me on Twitter and retweet with me let's make our voices get heard please..
Twitter.con/jeanfrivera
Click to expand...
Click to collapse
I have "employment concerns" that unfortunately prevent me from doing so, but I'll see if there is anything I can do internally to raise awareness.

PunishedSnake said:
Did the HTC 10 support volte on att?
Click to expand...
Click to collapse
Yes it does and I have proof of it
Sent from my HTC U11 using XDA Labs

bassoprofundo said:
I have "employment concerns" that unfortunately prevent me from doing so, but I'll see if there is anything I can do internally to raise awareness.
Click to expand...
Click to collapse
You can always help anonymously thanks !!!
Sent from my HTC U11 using XDA Labs

JEANRIVERA said:
Yes it does and I have proof of it
Sent from my HTC U11 using XDA Labs
Click to expand...
Click to collapse
Show me
Sent from my Pixel using Tapatalk

PunishedSnake said:
Show me
Click to expand...
Click to collapse
Top signal icon on the right has the LTE while on a call I can provide you a video also but what is the point?

JEANRIVERA said:
Top signal icon on the right has the LTE while on a call I can provide you a video also but what is the point?
Click to expand...
Click to collapse
Video please
What HTC 10 is it? I didn't know it used att icons...
Sent from my Pixel using Tapatalk

PunishedSnake said:
Video please
What HTC 10 is it? I didn't know it used att icons...
Sent from my Pixel using Tapatalk
Click to expand...
Click to collapse
https://www.youtube.com/watch?v=d_WeaA0hKCg
this is a custom rom Viper10 but ht e device does it on stock unlocked rom to,
on the video I show you that is connected to AT&T network and i put it in LTE mode only to make proof that the device is not making the call or regular 4G or 3G

JEANRIVERA said:
https://www.youtube.com/watch?v=d_WeaA0hKCg
this is a custom rom Viper10 but ht e device does it on stock unlocked rom to,
on the video I show you that is connected to AT&T network and i put it in LTE mode only to make proof that the device is not making the call or regular 4G or 3G
Click to expand...
Click to collapse
Why use that horrible icons?
Sorry but a custom ROM with ability to change almost anything won't cut it. Needs to be on stock rom
Sent from my Pixel using Tapatalk

PunishedSnake said:
Why use that horrible icons?
Sorry but a custom ROM with ability to change almost anything won't cut it. Needs to be on stock rom
Sent from my Pixel using Tapatalk
Click to expand...
Click to collapse
either way I have nothing to proof to you all I did was as a courtesy I know what I am talking about I have the HTC 10 since day 1 and I know what it was working and what didn't work and this is off topic we are talking over here about the HTC U11

JEANRIVERA said:
either way I have nothing to proof to you all I did was as a courtesy I know what I am talking about I have the HTC 10 since day 1 and I know what it was working and what didn't work and this is off topic we are talking over here about the HTC U11
Click to expand...
Click to collapse
Nothing was proved but thanks
Sent from my Pixel using Tapatalk

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
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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
Click to expand...
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.

vowifi/WiFi calling on three UK on none branded phone

This might be to early to ask but has anyone been able to test this on three? I have no reception in my flat and can't get vowife to work on my 3t and because of the lockdown I need a working phone. I'm on a sim contract with three already.

Eggstones said:
This might be to early to ask but has anyone been able to test this on three? I have no reception in my flat and can't get vowife to work on my 3t and because of the lockdown I need a working phone. I'm on a sim contract with three already.
Click to expand...
Click to collapse
I'm getting WiFi calling with 3 UK. I suppose that is what you're looking for.

desiresiscool said:
I'm getting WiFi calling with 3 UK. I suppose that is what you're looking for.
Click to expand...
Click to collapse
Are you using an non-branded OnePlus 8 or one from three?

Eggstones said:
Are you using an non-branded OnePlus 8 or one from three?
Click to expand...
Click to collapse
Got it direct from OnePlus. Don't think it actually matter because all UK versions are unlocked

desiresiscool said:
Got it direct from OnePlus. Don't think it actually matter because all UK versions are unlocked
Click to expand...
Click to collapse
Thanks. For some reason the 3t doesn't allow that on three, which is annoying as the phone works fine bar reception at home which is an issue in lockdown

Eggstones said:
Thanks. For some reason the 3t doesn't allow that on three, which is annoying as the phone works fine bar reception at home which is an issue in lockdown
Click to expand...
Click to collapse
What I do at home is have an app (it's called Automate) which, when it detects me connecting to the home wifi, will divert incoming calls to my house phone. When the wifi connection goes (I've left the house), then it cancels the divert.
Maybe that will help you?
Alan

alan sh said:
What I do at home is have an app (it's called Automate) which, when it detects me connecting to the home wifi, will divert incoming calls to my house phone. When the wifi connection goes (I've left the house), then it cancels the divert.
Maybe that will help you?
Alan
Click to expand...
Click to collapse
Thanks but not really as my network provider charges me for that pleasure.

Got the OnePlus 8 today and wifi calling just appeared!