WiFi Calling? (AT&T) - Xperia Z5 Compact Q&A, Help & Troubleshooting

I have read on the AT&T website that they offer WiFi calling for all supported devices. Their list includes their branded IPhone 6. I know the Z3c worked over wifi on T-mobile. Any idea about a setting or somthing on the Z5c?
Sent from my E5823 using Tapatalk

The Z3C never had wifi calling on Tmo US. But the Tmo branded Z3 did. The Z5C won't have wifi calling on ATT or Tmo. Besides, the wifi calling for ATT is like in a beta state right now so it's not even reliable enough to use yet.

Oh! gotcha.
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Related

Verizon G3 for T-Mobile What should I know?

Ok, I'm buying a G3 thats for Verizon but for my T-Mobile service. I want to flash roms etc and I'm coming from a unlocked T-Mobile Note 2. Anything I should know before I buy it? Is it fine with T-Mobile?
T-Mobile runs on GSM network and Verizon runs on CDMA so the two won't work.
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I thought it was SIM unlocked and worked
digitallure said:
T-Mobile runs on GSM network and Verizon runs on CDMA so the two won't work.
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Click to expand...
Click to collapse
Don't give false information if you have no idea what you're talking about? If this information were true, how am I using a Verizon G3 on ATT with LTE?
The Verizon G3 is unlocked so it will work on either T-Mobile and ATT. It picks up LTE and HSPA+ on both networks. But LTE depends on what frequency is used in your area.
daniel4653 said:
Don't give false information if you have no idea what you're talking about? If this information were true, how am I using a Verizon G3 on ATT with LTE?
The Verizon G3 is unlocked so it will work on either T-Mobile and ATT. It picks up LTE and HSPA+ on both networks. But LTE depends on what frequency is used in your area.
Click to expand...
Click to collapse
Alright, you got it
LTE on band4 works fine on the vs985 on both T-Mobile and Cricket pre-paid. H+ gsm works as a fallback, too. Verizon phones have had GSM radios since at least the Droid3, if they were "World Phones", like ALL current LTE models are. Verizon used to require a code be entered before GSM would work, and even then no USA GSM networks would work. But that's all in the past.
lowridincrew said:
Ok, I'm buying a G3 thats for Verizon but for my T-Mobile service. I want to flash roms etc and I'm coming from a unlocked T-Mobile Note 2. Anything I should know before I buy it? Is it fine with T-Mobile?
Click to expand...
Click to collapse
every lollipop rom will pop up with a call forwarding hass been disabled bug that happens when dropping for lte to H or H+
it will work but the bug will annoy you all the time and i never was able to find away to disable it
4.4.4 roms work amazing tho so id say stick to those for now
digitallure said:
T-Mobile runs on GSM network and Verizon runs on CDMA so the two won't work.
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Click to expand...
Click to collapse
Actually it will work. I'm using mine on T-Mobile now. 4g lte is limited since verizon g3 only supports one band thats compatible with tmobile. But hspa+ or regular 4g works, spa or 3g works edge gprs all of those work.

?SIM Unlocked Sprint S6 on T-Moile?

OK Question:
I have been trying to find reliable information on this specific question for quite some time.. I am wondering two things:
How well will a Sprint Samsung S6 work unlocked on T-Mobile? I was comparing Basebands or bands or whatever and it has most of the LTE bands but none of the 3G bands. Does that mean that IF I was in a place where LTE was not available that it wouldn't be able to connect to 3G? How well would this work?
Thanks
beforedenied said:
OK Question:
I have been trying to find reliable information on this specific question for quite some time.. I am wondering two things:
How well will a Sprint Samsung S6 work unlocked on T-Mobile? I was comparing Basebands or bands or whatever and it has most of the LTE bands but none of the 3G bands. Does that mean that IF I was in a place where LTE was not available that it wouldn't be able to connect to 3G? How well would this work?
Thanks
Click to expand...
Click to collapse
3G will work.
Sent from my Nexus 5 using Tapatalk
optimummind said:
3G will work.
Sent from my Nexus 5 using Tapatalk
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Click to collapse
Ok Please give me more information. how well will it work? Perfectly all the time?
If you are in the United States, by law the carrier cannot "lock" a phone to be only activated by their own network. You may have to call them to get it unlocked though. They may request for you to pay off the ETF on it, which is usually the remaining balance of the discounted phone on contract.
So really there is no such thing as a locked phone anymore, at least not for now. The hardware on the Samsung S6 should be the same for all carriers, the only difference should be the SIM card.

Bands for US carriers

I will order the z5c soon and have accounts with both Tmobile and AT&T. Should I hook it up on AT&T because of missing Tmobile bands? Are there any missing at&t bands? Buying the UK version from either Handtec or Clove. Please advise if anyone knows. Thanks
Sent from my D5803 using Tapatalk
The E5823 model supports all of T-Mobile USA's LTE bands 2, 4, and 12. Band 12 (Extended Range 700Mhz) is questionable though. That particular band doesn't seem to be fully supported yet as Sony would need to get the phone validated on T-Mobile's network. Given that there's no USA model, it's unclear if this will ever happen.
That said, using the LTE Discovery app, I have seen my Z5c jump onto Band 12 if low coverage areas. When I had 4G enabled, band 12 didn't seem to work. When I was in HSPA+ mode, band 12 seemed to work.
Thanks
Sent from my D5803 using Tapatalk
Notchr302 said:
Thanks
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Click to expand...
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Double check the hspa bands. I feel like it might be missing one.
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phositadc said:
Double check the hspa bands. I feel like it might be missing one.
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Click to collapse
I do have the option to use at$t but would rather Tmobile. Maybe I'm safer on att
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gr00vy0ne said:
The E5823 model supports all of T-Mobile USA's LTE bands 2, 4, and 12. Band 12 (Extended Range 700Mhz) is questionable though. That particular band doesn't seem to be fully supported yet as Sony would need to get the phone validated on T-Mobile's network. Given that there's no USA model, it's unclear if this will ever happen.
That said, using the LTE Discovery app, I have seen my Z5c jump onto Band 12 if low coverage areas. When I had 4G enabled, band 12 didn't seem to work. When I was in HSPA+ mode, band 12 seemed to work.
Click to expand...
Click to collapse
That's no good. I was thinking of getting this to test band 12 on tmobile. I currently use att, verizon, and testing tmobile. I already have z3c on att and thought I'd try the z5c for band 12 and put on att when/if i drop tmobile.
That really only leaves m9 or iPhone 6s for my options as i don't really want a gs6
Edit: I also noticed that it does not support bands 29/30. I believe att will soon be using b30. Probably not a big deal for a while.
This phone also does not appear to support WiFi calling for tmobile USA if that's important to you.
So the E5823 model supports all tmobile LTE bands besides 12 right? just double checking, I don't mind band 12 since it's not in my area yet
Not sure where the lack of band 12 misinformation is coming from but I am in a Band 12 area right now and my z5c works great with it - confirmed on LTE discovery Android app.
Band 12 works fine. Sadly the 3 most important innovations, wifi calling, VoLTE and HD voice, do not and it is not likely they ever will
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km8j said:
Band 12 works fine. Sadly the 3 most important innovations, wifi calling, VoLTE and HD voice, do not and it is not likely they ever will
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Click to expand...
Click to collapse
This is what makes me sad. VoLTE support for areas where T-Mobile has only B12 would be great for when I travel into those areas, like northern Michigan (Chicago area native here). The Z5C would be great for most places I go, but I know I wouldn't get VoLTE calling in some areas.
jm8j: Have you noticed that B12 data works fine though?
doclloyd said:
This is what makes me sad. VoLTE support for areas where T-Mobile has only B12 would be great for when I travel into those areas, like northern Michigan (Chicago area native here). The Z5C would be great for most places I go, but I know I wouldn't get VoLTE calling in some areas.
jm8j: Have you noticed that B12 data works fine though?
Click to expand...
Click to collapse
LTE Discovery shows I'm connected to Band 12 in some low signal areas. When that is occurring, I'm still online.
km8j said:
LTE Discovery shows I'm connected to Band 12 in some low signal areas. When that is occurring, I'm still online.
Click to expand...
Click to collapse
What market are you in? I'm most concerned/interested in what the Z5 and Z5C does if you're in a B12 only coverage for T-Mobile and you try to make a call. Does the phone roam then to another carrier or just not make a call?
Hmmm not sure. I'm in South FLA. I just see that I'm on Band 12 regularly
Sent from my E5823 using Tapatalk
I was at walt disney world two weeks ago and picked up band 12 at the art of animation resort lobby and speedtest was logging 65 mbps. Unfortunately that was the only place I was grabbing band 12. No service in any of our rooms and the park in general sucks if you are a tmobile or sprint customer. One or two bars of band 4 lte outdoors if I was lucky. But for whatever reason the hotel lobby had great band 12 reception. I have been generally displeased with tmobile coverage. Their marketing ads do not match up to my lackluster experience both with this phone or my (supported) Nexus 6. Ive been thinking of switching to ATT. Everywhere we go my wifes ATT iphone has LTE coverage while im lucky to make calls. Lol
sabooher said:
I was at walt disney world two weeks ago and picked up band 12 at the art of animation resort lobby and speedtest was logging 65 mbps. Unfortunately that was the only place I was grabbing band 12. No service in any of our rooms and the park in general sucks if you are a tmobile or sprint customer. One or two bars of band 4 lte outdoors if I was lucky. But for whatever reason the hotel lobby had great band 12 reception. I have been generally displeased with tmobile coverage. Their marketing ads do not match up to my lackluster experience both with this phone or my (supported) Nexus 6. Ive been thinking of switching to ATT. Everywhere we go my wifes ATT iphone has LTE coverage while im lucky to make calls. Lol
Click to expand...
Click to collapse
I had the exact same experience this summer - got so jealous of my wife having signal that I joined AT&T. I was happy for about 3 months, getting signal everywhere before I realized that the data speeds are pretty mediocre. Plus, their prices for capped data are ridiculous! It cost me an additional $45 when I went over my cap by 3 gigs. I'm tempted to switch back now, but T-mobile jacked up their pricing for unlimited data since I left. 2 lines with Unlimited Data used to be $100. Now it's $140. Not sure if I can justify that price increase, though it's still a better deal than AT&T's limited data plans. I live in a major city, so AT&T and T-Mobile both have excellent coverage here. I spend 98% of my time here, so I should be satisfied if I can't get a signal the other 2% of the time, right?
/rant

New US version

Is the US version of the Z5 compact separate hardware? Or is it the e5823 with custom software for the US that has full Tmo support?
I read that they dropped the fingerprint sensor for the US versions of the z5 and z5c.
weasal said:
I read that they dropped the fingerprint sensor for the US versions of the z5 and z5c.
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Click to collapse
I cannot understand why they would do this.
weasal said:
I read that they dropped the fingerprint sensor for the US versions of the z5 and z5c.
Click to expand...
Click to collapse
This is why I'm asking if the hardware is different or just software. So we know if we can keep the e5823 and just get software.
km8j said:
Is the US version of the Z5 compact separate hardware? Or is it the e5823 with custom software for the US that has full Tmo support?
Click to expand...
Click to collapse
What do you mean by "full Tmo support?" Do you mean VoLTE and WiFi calling? Unless it's a T-Mobile branded phone it will probably not support those things. I've had several unlocked Android phones on T-Mo and they did not have those features (including my Z3 Compact and Z5 Compact). The only one that comes close is the iPhone which does have WiFi calling on T-Mobile when using the unlocked version (because, I assume, they have no branding anyway).
We must have made our threads very close. I was asking the same thing. On one hand, the US version doesn't have the fingerprint scanner but may have better radios for the US carriers.. On the other hand if the international version has the same radios, it's also cheaper. Not sure what to do as I don't seem to have a clear answer.
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scottjb said:
What do you mean by "full Tmo support?" Do you mean VoLTE and WiFi calling? Unless it's a T-Mobile branded phone it will probably not support those things. I've had several unlocked Android phones on T-Mo and they did not have those features (including my Z3 Compact and Z5 Compact). The only one that comes close is the iPhone which does have WiFi calling on T-Mobile when using the unlocked version (because, I assume, they have no branding anyway).
Click to expand...
Click to collapse
This is not accurate. Nexus 5x, 6p, HTC One A9 all have proper T-Mo support including Band 12, VoLTE, HD Voice and WiFi Calling and are unlocked/unbranded. Pretty sure Moto X does too.
km8j said:
This is not accurate. Nexus 5x, 6p, HTC One A9 all have proper T-Mo support including Band 12, VoLTE, HD Voice and WiFi Calling and are unlocked/unbranded. Pretty sure Moto X does too.
Click to expand...
Click to collapse
OK. I had a Nexus 5X and I don't remember support for WiFi calling, but I only had it for two days. My Sony devices don't support it.
I guess the correct answer is it depends on the device.
weasal said:
I read that they dropped the fingerprint sensor for the US versions of the z5 and z5c.
Click to expand...
Click to collapse
According to Amazon site for Z5 Compact "Fingerprint sensor is not supported." (see last line of specs under "From the Manufacturer.") Read: It's there, but without software support.
This leads me to believe that hardware is identical to E5803 or E5823 and only fingerprint sensor software/drivers are not included in US customization.
That makes more sense than Sony building a completely different model for the US market that they would have to support with different parts, etc.
Also means that someone with a US variant should try flashing a non-US customization and see if the sensor 'awakens.'
cschmitt said:
Also means that someone with a US variant should try flashing a non-US customization and see if the sensor 'awakens.'
Click to expand...
Click to collapse
Yes, that probably would work. You can get it more easily buying one from Clove UK with the sensor software already functional.
Granted you'd have to return it to Clove for warranty support but I wonder how a US distributor would handle warranty support on a phone with a different customization. I suppose you could put the US version back on it for support.
Looks like the bands are better for US carriers including the infamous band 12 for Tmobile. Think I'll go this route since I'm on Tmobile
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Notchr302 said:
Looks like the bands are better for US carriers including the infamous band 12 for Tmobile. Think I'll go this route since I'm on Tmobile
Sent from my D5803 using Tapatalk
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Doesn't add up because the original Z5c had B12, just no VoLTE.
km8j said:
Doesn't add up because the original Z5c had B12, just no VoLTE.
Click to expand...
Click to collapse
Hmm. This is what I'm trying to figure out for sure. Obviously if I can get away with a UK model and still have the same bands.. It will save me money. Just read that b12 was NOT on the UK and Asian models. Do you have a source?
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when i was in florida/miami i got a t-mobile card, it worked fine, but it almost always showed that i had a very bad signal.
i have a nordic yellow z5c.
also, wtf is up with the prices 60$ for unlimited calling in the states and 3gb surf.
Notchr302 said:
Hmm. This is what I'm trying to figure out for sure. Obviously if I can get away with a UK model and still have the same bands.. It will save me money. Just read that b12 was NOT on the UK and Asian models. Do you have a source?
Sent from my D5803 using Tapatalk
Click to expand...
Click to collapse
I'm using an Asian model and get a band 12 signal on T-Mobile according to LTE Discovery
I ordered mine from amazon, and am using on T-Mobile, it does have fingerprint sensor. Pretty sure there is one model that supports pretty much every band there is. US model is the same except the fingerprint sensor as I read in the news, not sure how I can tell mine is US model as it is not indicated anywhere.
Ever since I got out of my contract and started using prepaid I never bought a single phone from a carrier. ****ty logos, apps and sometimes software, and apparently now different hardware? No thanks..
Bump... Anyone have volte
km8j said:
Bump... Anyone have volte
Click to expand...
Click to collapse
nope, no VoLTE on mines.

No ATT HD Voice on unlocked S9+

Hello,
I just bought the S9+ unlocked today at best buy. I love the phone and I opted in for unlocked version so that I can root the thing later if I wish.
So, I would really like to have the HD voice option, but I found out that you need a carrier phone to be able to have wifi-calling and hd voice. My parent can hear me great on their end (they have iphones) but on my end I have the same old ****ty voice quality.
Is flashing ATT firmware (and getting their bloatware) the only way to get the option? Right now, when I go into settings-> connections-> mobile networks, the option isnt even there.
Reason is the same as I posted on a different thread. Flashing at&t firmware will not fix the problem. Subsequent comments in the thread may be of interest.
https://forum.xda-developers.com/showpost.php?p=77649772&postcount=7
Ouch. That sucks. I read somewhere that tmobile and sprint don't lock unlocked phones out of their volte and wifi calling. Does Verizon use same tactics as att or will they make it available to me as well?
fen-q said:
Ouch. That sucks. I read somewhere that tmobile and sprint don't lock unlocked phones out of their volte and wifi calling. Does Verizon use same tactics as att or will they make it available to me as well?
Click to expand...
Click to collapse
Yeah att doesn't have volte on any unlocked Phones. I put a sim in my Sprint S8 and it dropped to H+ during the call where TMO and vzw stay on VOLTE on my phone.
Sent from my SM-G950U using Tapatalk
Same issue in Canada - Carrier Unlocked device purchased do from Samsung & none of the Canadian Carriers support VoLTE or WiFi Calling - This is extremely unethical on the part of the partnership between Samsung & the Carriers! We all know that the Carriers are Samsung's biggest customers - But to make key features unavailable is unconscionable! ?
Sent from my SM-G965W ??
shaggyskunk said:
Same issue in Canada - Carrier Unlocked device purchased do from Samsung & none of the Canadian Carriers support VoLTE or WiFi Calling - This is extremely unethical on the part of the partnership between Samsung & the Carriers! We all know that the Carriers are Samsung's biggest customers - But to make key features unavailable is unconscionable!
Sent from my SM-G965W
Click to expand...
Click to collapse
For the US carriers though... if i switch to tmobile, will hd voice work if i call my parents on att? Anyone have real life experience?
fen-q said:
For the US carriers though... if i switch to tmobile, will hd voice work if i call my parents on att? Anyone have real life experience?
Click to expand...
Click to collapse
T-Mobile and Verizon customers both get VoLTE on Samsung factory unlocked phones. AT&T restricts by IMEI (as well as requiring their firmware). Sprint does not yet offer the feature at all on their network. It is unclear whether unlocked devices will get it once they do deploy it. Time will tell.

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