Does AT&T H820 support Wi-Fi calling on T-mobile network? - AT&T LG G5 Questions & Answers

I'd like to buy H820 instead of H830 given it supports more bands to use on T-mobile but would need WiFi calling on T-mobile.
Has anyone tried?
Thanks

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Tell me about LG G5 US992

Hi! Can i use any cellular operator with my sim-card or i need to use United cellular sim and this smatrphone us992 locked for another operator
And further. Does the phone work in gsm and can I use 3g and 4g in Europe? what are some other disadvantages?thanks
Hi, I'm using US992 outside of the U.S. with a local USIM. It works fine including the 4G LTE connection.
allthedogs said:
Hi, I'm using US992 outside of the U.S. with a local USIM. It works fine including the 4G LTE connection.
Click to expand...
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Used GSM?

AT&T V30 Unlocked on T-Mobile - WiFi Calling Issue

I have an AT&T branded V30 that has been unlocked. I put my T-Mobile SIM in and am able to get LTE and make calls, but WiFi calling does not turn on.
I have an AT&T branded Samsung S7 that is also unlocked and it doesn't work either.
My wife has a T-Mobile branded Samsung S8+ that she's using on AT&T and I'm able to turn on WiFi calling for her number. Why does T-Mobile not allow this?
supadoggie said:
I have an AT&T branded V30 that has been unlocked. I put my T-Mobile SIM in and am able to get LTE and make calls, but WiFi calling does not turn on.
I have an AT&T branded Samsung S7 that is also unlocked and it doesn't work either.
My wife has a T-Mobile branded Samsung S8+ that she's using on AT&T and I'm able to turn on WiFi calling for her number. Why does T-Mobile not allow this?
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Click to collapse
That would be a question for T-Mobile.
Sent via open market LG US998 V30/V30+
ChazzMatt said:
That would be a question for T-Mobile.
Sent via open market LG US998 V30/V30+
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I spoke with their support and they said because it's not a T-Mobile phone, it will not work. When I first switched to T-Mobile, I used a Nexus 6P and was able to get WiFi calling to work. I bought the Nexus 6P directly from Google and not through T-Mobile.
From what I understand, wifi calling has carrier-specific "hooks" to Android system to allow wifi calling, so AT&T phone wifi calling only works for AT&T and T-Mobile phone wifi calling only works for T-Mobile. Nexus is carrier-free phone, so Google probably has set up wifi calling for all carriers in the US. It is the reason the custom ROM does not support wifi calling.
i have US998 Unlocked (Oreo) from BH. Use it on ATT prepaid, but I don't see the wifi calling. Do I need to call ATT to put IMEI in their system for wifi calling?
supadoggie said:
I spoke with their support and they said because it's not a T-Mobile phone, it will not work. When I first switched to T-Mobile, I used a Nexus 6P and was able to get WiFi calling to work. I bought the Nexus 6P directly from Google and not through T-Mobile.
Click to expand...
Click to collapse
T-Mobile allows Wi-Fi calling on US998, and that's not a T-Mobile phone.
---------- Post added at 05:12 AM ---------- Previous post was at 05:09 AM ----------
waichai said:
i have US998 Unlocked (Oreo) from BH. Use it on ATT prepaid, but I don't see the wifi calling. Do I need to call ATT to put IMEI in their system for wifi calling?
Click to expand...
Click to collapse
I also have AT&T Prepaid on B&H Photo US998. I think AT&T either doesn't allow that feature on AT&T Prepaid or doesn't allow it on non-AT&T phones. Either way I also do not have it for my AT&T number.
I do have it when I use my Google Voice number, of course.
Hi ChazzMatt,
Can I flash ATT firmware into US998 for wifi calling? If yes, can I return back to US998 firmware if i want?
waichai said:
Hi ChazzMatt,
Can I flash ATT firmware into US998 for wifi calling? If yes, can I return back to US998 firmware if i want?
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Yes. You can flash the H931 TWRP-flashable zip to US998. (You need bootloader unlock and root.) With an AT&T account you may get Wi-Fi calling.
IF it doesn't work, very easy to return to US998 firmware.

US Cellular V60

Hi!
Will a US Cellular LG V60 ThinQ 5G work on the Verizon network if its unlocked?
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