First I do not have an S6 yet but am researching before Purchase and main concern
is Battery Life ....but this is a General Question.
On Metro PCS/ Tmobile we already have VoLTE on all Devices which have 4G LTE
Radios which are Carrier Branded Devices.
Metro PCS was one of the first so back in 2012 my little LG Motion 4G had simultaneous
Voice and Data on LTE Band .
My current Factory Unlocked Alpha 850M is CAPABLE of VoLTE but lacks the specific
TMobile Software for VoLTE on this Network so as soon I make a call the LTE
drops down to 3G or H H+ to make the call then returns to LTE after the call.
All unlocked Devices do this .
HOWEVER: the Galaxy S6 has a VoLTE setting in the Menu - on a MetroPCS/Tmobile
version on Tmobile/Metro you already have this function so:
1) What does VoLTE switch do on S6 Tmobile version - you stay on LTE During calls
either way - right ? VoLTE ON or OFF.
2) Since there IS a VoLTE switch will this be the FIRST Device that enables VoLTE even
as a Factory Unlocked version running on Tmobile/ Metro ?
Meaning - is this the beginning of VoLTE as a Universal Android Feature across many
Carriers not requiring specific Carrier Software for a Specific Network to enable
VoLTE on multiple Carriers ?
Thanks for your patience - I am not a Dev and have learned much here.
robertkoa said:
Meaning - is this the beginning of VoLTE as a Universal Android Feature across many
Carriers not requiring specific Carrier Software for a Specific Network to enable
VoLTE on multiple Carriers ?
Click to expand...
Click to collapse
I don't believe this is the case YET. Android AOSP has VoLTE built into it as of OS version 5.1 (as seen with the Nexus 6). Prior to this the VoLTE was handled by carrier software on carrier devices. I do not know if another carriers S6 will use VoLTE on T-Mobile without being flashed with T-Mobile software first.
That being said going forward we should see a VoLTE "Universal Android Feature" that is compatible with any device/enabled carrier but not until 5.1+
You're confusing a few different things
- Simultaneous voice + data was always available on GSM networks, it uses the regular GSM radio to place the call and then data is separate. This is not VoLTE.
- CDMA carriers (Verizon, Sprint, old Metro PCS) had trouble with voice + data, CDMA didn't allow it to work. When LTE was introduced, it gave them the ability to connect voice through CDMA and data via LTE, so that's how they were able to do simultaneous voice + data. This is also not VoLTE.
- VoLTE is sending the call over the data LTE network. This is also different to WiFi calling. So instead of your phone call being transmitted as a voice call, it's turned into data, and sent through T-Mobile (or whatever carrier's network) as data. You can have a VoLTE call and use data as well, it's the equivalent of having 2 data apps running at the same time.
- There have been a few VoLTE enabled phones already, I believe the Note 4 and Z3 both have VoLTE. There are probably others, I just don't know off the top of my head.
We have Had VoLTE Phones on Metro PCS since August 2012
Again-we have had VoLTE Phones since 2012 on Metro PCS :
http://www.pcmag.com/article2/0,2817,2408750,00.asp
I had one of the first Models called LG Motion 4G- the Call
AND the Internet while on the Call were all over LTE.
Metro PCS was one of the first to offer this and most of their
LTE ( if not ALL) have had this feature since AND TMobile has
adopted this Feature to most of their phones.
But I don't want to get bogged down in that Question.
The Question is - On Metro PCS /Tmobile you ONLY Get VoLTE on a Metro branded Phone-
AT&T issued an OTA UPDATE for their first VoLTE Phone which
was Galaxy S4 Mini .
There is No Factory Unlocked Phone which can get VoLTE on Metro PCS ( but their Branded 4G LTE phones do have VoLTE)
BUT - since VoLTE is a Function in the Galaxy S6 and is somewhat supported by Android Lollipop -
Will Factory Unlocked Galaxy S6 be the First Phone which will
Stay on 4G LTE during a call even when you get on the Internet?
Other Phones which are NOT Carrier Branded drop down to 3G during calls and thus have slower data speeds during calls etc.
The new Galaxy S6 Active will probably have an SD Card and much larger Battery -probably exclusive to AT&T
BUT Factory Unlocked Models will become available -
1)IF I get a Factory Unlocked S6 Active and turn on VoLTE Feature-will the Device stay on 4G LTE during calls with Data - VoLTE ?
2) Metro PCS LTE phones and Tmobile LTE Phones already have VoLTE so again what is the difference on S6 if you turn VoLTE on or off in the Menu ?
3) My Factory Unlocked Galaxy Alpha 850M does not have the VoLTE software for Metro/ Tmobile so I am on LTE but as soon as I make a call I drop to 3G ( it shows on the screen) with slower data and sometimes data interruption.
Will S6 do the same thing if an Unlocked Phone or be the first Factory Unlocked Phone with VoLTE across multiple Carriers ?
robertkoa said:
Again-we have had VoLTE Phones since 2012 on Metro PCS :
http://www.pcmag.com/article2/0,2817,2408750,00.asp
I had one of the first Models called LG Motion 4G- the Call
AND the Internet while on the Call were all over LTE.
Metro PCS was one of the first to offer this and most of their
LTE ( if not ALL) have had this feature since AND TMobile has
adopted this Feature to most of their phones.
But I don't want to get bogged down in that Question.
The Question is - On Metro PCS /Tmobile you ONLY Get VoLTE on a Metro branded Phone-
AT&T issued an OTA UPDATE for their first VoLTE Phone which
was Galaxy S4 Mini .
There is No Factory Unlocked Phone which can get VoLTE on Metro PCS ( but their Branded 4G LTE phones do have VoLTE)
BUT - since VoLTE is a Function in the Galaxy S6 and is somewhat supported by Android Lollipop -
Will Factory Unlocked Galaxy S6 be the First Phone which will
Stay on 4G LTE during a call even when you get on the Internet?
Other Phones which are NOT Carrier Branded drop down to 3G during calls and thus have slower data speeds during calls etc.
The new Galaxy S6 Active will probably have an SD Card and much larger Battery -probably exclusive to AT&T
BUT Factory Unlocked Models will become available -
1)IF I get a Factory Unlocked S6 Active and turn on VoLTE Feature-will the Device stay on 4G LTE during calls with Data - VoLTE ?
2) Metro PCS LTE phones and Tmobile LTE Phones already have VoLTE so again what is the difference on S6 if you turn VoLTE on or off in the Menu ?
3) My Factory Unlocked Galaxy Alpha 850M does not have the VoLTE software for Metro/ Tmobile so I am on LTE but as soon as I make a call I drop to 3G ( it shows on the screen) with slower data and sometimes data interruption.
Will S6 do the same thing if an Unlocked Phone or be the first Factory Unlocked Phone with VoLTE across multiple Carriers ?
Click to expand...
Click to collapse
I have a MetroPCS Galaxy S6 Unlocked and VoLTE Works Fine and also I have the T-mobile firmware on it I'm not sure if that would change anything but I was just saying for me it works perfect
Sent from my SM-G920T using XDA Free mobile app
My brother brought Samsung Galaxy Note 9 SM-N960F. When calling him most of the calls goes to Voicemail so i just want to make sure it is the problem with network or phones bands that does not support to US bands
alwynjoshy said:
My brother brought Samsung Galaxy Note 9 SM-N960F. When calling him most of the calls goes to Voicemail so i just want to make sure it is the problem with network or phones bands that does not support to US bands
Click to expand...
Click to collapse
It's more than likely a network related issue,unless he has calls set to go straight to voicemail.
Which network/carrier is he using?
KOLIOSIS said:
It's more than likely a network related issue,unless he has calls set to go straight to voicemail.
Which network/carrier is he using?
Click to expand...
Click to collapse
he is using lyca (tmobiles network sharing). When i check with lyca website most of the bands are not come on international version
alwynjoshy said:
he is using lyca (tmobiles network sharing). When i check with lyca website most of the bands are not come on international version
Click to expand...
Click to collapse
No,the phone should work just fine,unless he's in an area that is served solely by Band 71,which is highly unlikely,as most,if not all areas are served by at least two bands.
My guess is he needs to call LycaMobile & see what's going on.
Another couple of possibilities:
1) The phone he's using is region locked or blacklisted.
2) Check the APN & make sure it's correct,but,this shouldn't be necessary on an unlocked device.
An unlocked phone that is otherwise compatible should automatically use the proper APN for whatever SIM is installed.
I had a few different models of the Note FE & never had issues with calls/data & I'm on T-Mobile US,so,there's really no reason why this Note 9 shouldn't work.
That's why I suspect it's either region locked,or,something else is going on w/LycaMobile.
@alwynjoshy
Perhaps the phone's anti-spam feature is detecting your number as such & sending it directly to voicemail:
https://us.community.samsung.com/t5...oing-straight-to-Voicemail-Note-9/td-p/395457
If that feature is indeed on his phone,have him turn it off & see if it helps.
In effort to use the Spectrum Mobile carrier on my samsung SM-N950U1, I picked up a sim using the IMEI of a "compatible" iphone I had laying around. I am not a fan of the Iphone and want to use this sim in my note as opposed to spending too much money on the note 9 through the Spectrum site. I know the network bands that Verizon use are compatible with this version of the note. When inserting the sim in the note after having activated it on the Iphone, it shows I have signal but does not allow and data services. It also does not show as registered on any network for longer then a few seconds.
Through settings using an APN I captured from the Iphone (APN settings blocked through traditional routes so I have limited information) I found two APNs Charterrslrvzwentp and vzwadmin . having ported both to my note, I get the flash of registered on Spectrum then nothing.
I am looking for a note 9 user on spectrum mobile or any user that can pull their full APN info and share it here. Hopefully that's all I need to get this device working on their network. I know they plan on expanding older devices to their network but I do not know when.
Thank you for the help.
So running the latest software it seems no need to flash firmware for carriers when you place an actual carrier sim in the splash screen and everything automatically switches to sim...I have a note 8 and a note 9 one cricket one metro since note 9 has band 71 I wanted to try metro in it and utilize that but ofcourse finding out metro locks service to imei unlike cricket does where any phone unlocked will work..but although I couldn't use my metro on my note 9 it did change splash screen and showed the wifi calling which I cant use wifi calling but i am able to hotspot again so that's the bonus for everyone on cricket needing hotspot again try popping in a tmobile or metro sim it holds even after restarting...correct me if I'm wrong on the firmware automatically switching cause the note 9 is a verizon bought phone and had been showing verizon splash screen....diagnose further when I buy new sim to tie note 9 to metro since they apparently pair sim and imei...
Terasman210 said:
So running the latest software it seems no need to flash firmware for carriers when you place an actual carrier sim in the splash screen and everything automatically switches to sim...I have a note 8 and a note 9 one cricket one metro since note 9 has band 71 I wanted to try metro in it and utilize that but ofcourse finding out metro locks service to imei unlike cricket does where any phone unlocked will work..but although I couldn't use my metro on my note 9 it did change splash screen and showed the wifi calling which I cant use wifi calling but i am able to hotspot again so that's the bonus for everyone on cricket needing hotspot again try popping in a tmobile or metro sim it holds even after restarting...correct me if I'm wrong on the firmware automatically switching cause the note 9 is a verizon bought phone and had been showing verizon splash screen....diagnose further when I buy new sim to tie note 9 to metro since they apparently pair sim and imei...
Click to expand...
Click to collapse
all us devices contain all carrier's csc.
bober10113 said:
all us devices contain all carrier's csc.
Click to expand...
Click to collapse
It's kind of new to me but I guess the take away for anyone is I've lost my hotspot capability on cricket when I switched to note 9 from note 8 cause changing the apn didn't work with new software like I did with note 8....and now i have regained that on note 9 which was bought through verizon also I'm able to utilize dialer codes again where I lost that too...so if your on cricket or something like that and lost those abilities then just pop in a metro or tmobile sim and restart phone then put your cricket sim back in and your good to go with hotspot and dialer codes again....I just wish cricket didn't whitelist phones capable of using volte where I could get that on my note 9 cause 3g calling has definitely went downhill with low to no coverage anymore on it...my real question is this everyone is talking about flashing the carrier csc to whatever carrier you going to so you have the best and all their perks just seems with latest updates there's no need for it like my note 9 has band 71 but while on verizon I'm sure they disable that band because it's not needed so it seems when you swap sims and forced to restart because new sim is detected and you put a tmobile sim in it automatically turns correct radio bands on for its network...correct or not because I want tmobile just need to know band 71 will be activated when I put a tmobile sim in this verizon bought note 9 and I'll be able to utilize their full network spectrum...cause metro by tmobile apparently only utilises band 2 and band 12 which cuts my coverage...sorry for the long read
I've heard conflicting things regarding band support on this device.
These are the bands supported by the PFEM10 model, with the bold ones used by T-Mobile in specific for their 4G LTE connectivity:
1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 66 - China
The only band missing is band 71, but otherwise the device has 5/6 4G bands needed for connectivity. The reason I'm asking is because I have a friend who imported the device from Hong Kong to the USA and he says when he plugs in his T-Mobile SIM to the device, he can't get 4G connectivity or any connectivity whatsoever. WiFi works fine, but no mobile data. We already called to try to activate the phone and was told by T-Mobile support "this device is not compatible with our network", even though the phone is factory unlocked and GSM-based.
Am I missing something here, or is there more to the picture than just band support?
dipleg said:
I've heard conflicting things regarding band support on this device.
These are the bands supported by the PFEM10 model, with the bold ones used by T-Mobile in specific for their 4G LTE connectivity:
1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 66 - China
The only band missing is band 71, but otherwise the device has 5/6 4G bands needed for connectivity. The reason I'm asking is because I have a friend who imported the device from Hong Kong to the USA and he says when he plugs in his T-Mobile SIM to the device, he can't get 4G connectivity or any connectivity whatsoever. WiFi works fine, but no mobile data. We already called to try to activate the phone and was told by T-Mobile support "this device is not compatible with our network", even though the phone is factory unlocked and GSM-based.
Am I missing something here, or is there more to the picture than just band support?
Click to expand...
Click to collapse
Try entering the IME numbers in T-mobiles web site(bring your own device page). When I was researching this(I'm on T-Mobile) some were incompatible. I have the global version and have 4g connectivity but no 5G. HD voice also works even though the indicator does not show on the status bar(it shows in the dialer screen.
BTW..forget about AT&T. They wont support the phone AT ALL! I left them because my Xiaomi Mi 10 Ultra worked fine on 5g until the 3g shutdown. They basically told me tough nuts so I left for T-Mobile.
g1xx3r said:
Try entering the IME numbers in T-mobiles web site(bring your own device page). When I was researching this(I'm on T-Mobile) some were incompatible. I have the global version and have 4g connectivity but no 5G. HD voice also works even though the indicator does not show on the status bar(it shows in the dialer screen.
BTW..forget about AT&T. They wont support the phone AT ALL! I left them because my Xiaomi Mi 10 Ultra worked fine on 5g until the 3g shutdown. They basically told me tough nuts so I left for T-Mobile.
Click to expand...
Click to collapse
Thanks for the reply man, I feel like we're the only ones here lol. I found an app on the Play store that allows you to take the first few numbers of a dummy IMEI and it fills in the rest of the numbers. I copy and pasted some variants of my Chinese IMEI version, and none of them works with t-mobile. I found a dummy IMEI number for the international version of this phone and made a few variants, plug them all into T-Mobile and they all say compatible, so looks good. So I'm pretty convinced that the international version will have 4G connectivity from your reports and a few other sources. I'm actually on MetroPCS but I know they use T-Mobile's infrastructure so I would assume it would be the same thing.
Another interesting thing is on Mint Mobile's IMEI compatibility checker, it gives some good detail... I typed in the Chinese IMEI and it said the phone did not support VoLTE, but I type in the IMEI number for international version and it says that it DOES support VoLTE. So my conclusion at this point is that the Chinese PFEM10 Oppo Find X5 Pro DOES support VoLTE but not specifically T-Mobile/MetroPCS's USA-based carrier implementation of VoLTE so it won't work despite the device having the compatible bands? Does that sound logical?
So do you have the options for things like volte and Wi-Fi calling under your sim settings on the global version?
dipleg said:
Thanks for the reply man, I feel like we're the only ones here lol. I found an app on the Play store that allows you to take the first few numbers of a dummy IMEI and it fills in the rest of the numbers. I copy and pasted some variants of my Chinese IMEI version, and none of them works with t-mobile. I found a dummy IMEI number for the international version of this phone and made a few variants, plug them all into T-Mobile and they all say compatible, so looks good. So I'm pretty convinced that the international version will have 4G connectivity from your reports and a few other sources. I'm actually on MetroPCS but I know they use T-Mobile's infrastructure so I would assume it would be the same thing.
Another interesting thing is on Mint Mobile's IMEI compatibility checker, it gives some good detail... I typed in the Chinese IMEI and it said the phone did not support VoLTE, but I type in the IMEI number for international version and it says that it DOES support VoLTE. So my conclusion at this point is that the Chinese PFEM10 Oppo Find X5 Pro DOES support VoLTE but not specifically T-Mobile/MetroPCS's USA-based carrier implementation of VoLTE so it won't work despite the device having the compatible bands? Does that sound logical?
So do you have the options for things like volte and Wi-Fi calling under your sim settings on the global version?
Click to expand...
Click to collapse
Yeah,I thought more people would chime in on this lol don't see the normal options for either but when I'm on a call, HD lights up and my calls are crystal clear.
I have now owned the PFEM10 in USA on T-Mobile for about a week and my unit connected to my service almost instantly after I moved my SIM over from my IN2025(Oneplus 8 Pro). Everything works fine but no 5G indicator on status bar. I have confirmed using the app "Network Cell Info Lite" that it does connect to the n41 band however and still can get over 100 Mbps download speeds. HD calling works too.
Also, something odd but hasn't really caused an issue. On my old phone, when going into Mobile Network settings, you would find a "Preferred network type" option allowing you to limit the phone connection to 5G/4G/3G etc. but on this phone you do not get that, or many settings for cell data at all, at least in my experience on the T-Mobile network.
I just received a new PFEM10 and after inseted my italian SIM the roaming is with AT&T 5G and hd voice (see attached)
They messaged me that I can use sms and data but no phone call.
I don't know if is because the phone is not registered with them or something else. Also msg. work on T-Mobile.