Dual Sim on TMobile and AT&T? - Samsung Galaxy S8 Questions and Answers

Has anybody tried to use the dual Sim version on both TMobile and AT&T in the US?
I'm very interested in how well it works in practice and if wifi calling is working. I would be especially interested in experiences with TMobile as sim1 and AT&T as sim2.
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Related

Need info on Bell and p7500M sim cards

Is the Bell sim card for the P7500M micro or standrad sized?
Standard SIM.
savagepagan said:
Is the Bell sim card for the P7500M micro or standrad sized?
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What is the difference between the P7500R(Rogers) and P7500M(Bell) hardware wise? I know one is Rogers is GSM and Bell is CDMA. But does the P7500R and P7500M have the same radio hardware but the tabs are just locked to their prospective networks? Can I get a the 7500M and unlock it and flash a AT&T radio and get 3G data speeds on on the at&t network or will I just get edge speeds?
They are the same. The bell version is hspa not cdma. They are identical in every way, except they are locked to their respective networks. Either one will work fine with att, once they are unlocked
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The galaxy tab 10.1 uses standard size sim cards
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StraightTalk and multi-band GSM: do they "mix"?

If I get an AT&T compatable StraightTalk SIM does it also pull from T-Mobile's towers for voice (but not 3g ofc)?
In other words, is the difference between the two SIMs (ATT/TMO) only for HSPA coverage, or HSPA and GSM?
Planning on getting my mom an Infuse 4G but I want to make sure that she'll be getting as best voice coverage as possible.
If you get her a Infuse,just get the at&t sim card from straight talk and everything will function just as if it were running on at&t
Sent from My Pkmn Sensation 4g
If you use a T-Mobile SIM you get T-Mobile coverage. If you use an AT&T SIM you get AT&T coverage. It's as simple as that.
MrObvious said:
If you use a T-Mobile SIM you get T-Mobile coverage. If you use an AT&T SIM you get AT&T coverage. It's as simple as that.
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Unless the phone supports both bands then you can use either sim card
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Yes but you won't be able to use the AT&T towers if you use T-Mobile from the way I understand it.
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MrObvious said:
If you use a T-Mobile SIM you get T-Mobile coverage. If you use an AT&T SIM you get AT&T coverage. It's as simple as that.
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This is the conclusion I've reached after much research.
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Damnit.
Well ATT coverage is great in our home area so I'll just stick to that. Thanks guys.
I was hoping that if an ATT sim was used and no ATT voice coverage was available it would try to roam to a TMO straighttalk service.
Get two SIMs and use Google Voice.
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T-Mobile LTE Hotspot on Metro PCS LTE

Anyone try it? Curious to know if you can just pop a Metro SIM in one and get $60 unlimited LTE.
Anyone try it? Curious to know if you can just pop a Metro SIM in one and get $60 unlimited LTE.
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Im curious as well if I can put a metro sim card in my unlocked tmobile Gs4 and get Lte. Thanks
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Going to Canada

Hello, I'm going over to Canada for a couple of days and had some general questions...
First, does Canada have prepaid options? I'm mostly needing data services. Where can I buy them and what is reliable / easiest to use? I'll be going to Vancouver from Washington state.
My phone is rooted, so if Canada has prepaid options available, is the phone unlocked so I can just switch out sim cards?
Thank you~
For couple days..eh..i would've said use Google voice grooveIP or talkatone.along with wifi...but if you buy tmobile.sim which I believe works with Canada tmobile network you should be fine...i mean couple.days...
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Nice. So I'm assuming my verizon note 3 doesn't have to be unlocked? Just pop in the new sim card and it will work?
..
Yes the phone is unlocked already..and as a matter of fact I. Just left Verizon for at&t prepaid...been working good so far for more than a week now. ..save myself $60 a month...
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Dual sim PH

Getting a one plus 6t in January and planning on using it overseas in Phillipines. I want to use there sim and my tmobile sim. I know tmobile works over there but it's 128kbs. I'm going to be buying a globe sim and using it too. Wanted to know if I have both Sims in how will data and voice calls go?
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derrickmd18 said:
Getting a one plus 6t in January and planning on using it overseas in Phillipines. I want to use there sim and my tmobile sim. I know tmobile works over there but it's 128kbs. I'm going to be buying a globe sim and using it too. Wanted to know if I have both Sims in how will data and voice calls go?
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You specify data sim.
Calls come in on both.
6t does not support Dual Sim Dual active.
tech_head is correct on how to use two sims.
Check my thread on oneplus forum
https://forums.oneplus.com/threads/dual-sim-dual-active-feature-not-working.946238/#post-19497460
What phone is
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