Here is my query, during travel abroad from US: On my Oneplus 7Pro, I have data enabled SIM1 (UK) and US TMobile SIM2 (no-data on international roaming). T-Mobile calls/SMS to the US using wifi calling is free from overseas.
Can my dual-SIM phone use "WiFi calling" feature of T-Mobile, by using the data connection from the UK SIM?
I can use 2 phones and setup wifi hotspot, so that TMobile uses the wifi of the local SIM, and wifi calling is enabled. But I want to use one dual-SIM phone. Is it possible?
Thanks!
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Me and my family will be traveling to Jamaica this weekend. From looking at Sprint's coverage map, didn't see any coverage for Jamaica. Question, w/out enabling International services for our phones, is there an app we can use for texting each other? Would this only work if we are connected to a wifi network?
Update: Talked to Sprint, we have Sprint Global Roaming (not warming) which is free. We'll have unlimited text/data, but we'll get charged for any voice calls, $0.20/minute. We will have to connect to a GSM network when we get there.
ycats said:
Me and my family will be traveling to Jamaica this weekend. From looking at Sprint's coverage map, didn't see any coverage for Jamaica. Question, w/out enabling International services for our phones, is there an app we can use for texting each other? Would this only work if we are connected to a wifi network?
Update: Talked to Sprint, we have Sprint Global Roaming (not warming) which is free. We'll have unlimited text/data, but we'll get charged for any voice calls, $0.20/minute. We will have to connect to a GSM network when we get there.
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Do they have to activate something on your phone to connect to a GSM network? My father in law is thinking about switching to our family plan but goes overseas to the Philippines a couple times a year and is worried about connectivity while over there which is all GSM. Thanks!
They updated our Profiles, not sure what got changed.......................then when we arrive in Jamaica, we'll have to go into Settings, More Networks, Roaming, Roaming Network, Automatic, Roaming Settings, check International Voice and International Data..........then Settings, Connections, More Networks, Mobile Networks, Network Mode, Select GSM/UMTS, then select one of the three networks that will be available.
Can anyone let me know if the S8+ Dual Sim is 4G/3G as Australia is turning off all 2G networks.
Thanks
It's 4G/3G/2G (SIM 1) + 4G/3G/2G (SIM 2).
TL;DR: LTE/LTE.
Pretty sure that SIM 2 is GSM only
http://www.phonemore.com/samsung-galaxy-s8-plus-duos-sm-g955fd/specs/3256
2nd sim is 2g/3g on my s8+.
seal said:
Can anyone let me know if the S8+ Dual Sim is 4G/3G as Australia is turning off all 2G networks.
Thanks
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It's 4G/3G for my 955FD
Sent from my SM-G955F using Tapatalk
Both SIMs are 3G and 4G, but you can use as 4G only one and the other one will be max 3G, or if you prefer can be 2G as well. This is not so relevant, since you switch the SIM cards for internet use (since you can not use both cards in the same time for data usage) it will change settings to 4G for the preferred SIM immediately.
I'm contemplating a purchase for a Mate 9 with dual SIM capability ( from Kogan Australia). It's advertised with dual SIM. For me, the secondary SIM would only add value if I can use it on 3G, while I keep the main SIM on 4G.
But in some documentation, the secondary SIM only supports 2G. Has anyone successfully used Mate 9 with 4G+3G SIM combination.
andrewsc said:
I'm contemplating a purchase for a Mate 9 with dual SIM capability ( from Kogan Australia). It's advertised with dual SIM. For me, the secondary SIM would only add value if I can use it on 3G, while I keep the main SIM on 4G.
But in some documentation, the secondary SIM only supports 2G. Has anyone successfully used Mate 9 with 4G+3G SIM combination.
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For sure....! I also think 4G+4G can work...
If the Australian version is the same as the European version it will support 2G, 3G and 4G on SIM 1 whilst SIM 2 will support 2G and 3G.
Sent from my MHA-L29 using Tapatalk
3G would be great on SIM 2. The problem I'm trying to solve is that our Australian telco ( Optus ) has severely degraded its own mobile network, to the point where we can't receive voice calls anywhere in our suburb. LTE used to work well, not any more. On the other hand, they improved somewhat on their 3G network. My wife is still in contract with cheap plan. So I could arrange a dual-SIM where SIM 1 is on 4G with another telco, while SIM 2 stays at 3G with the old telco. Things may improve for their network, or the company is going down, we shall see.
4G/3G is how it does it.
Both will support 4G but you'll need to put the switcher setting on your homescreen so you can switch quickly - you can't have both on 4G but both will support it. The other will be able to use 3G.
Just switched from Iphone 7 to P30： good thing is that it shows some signal at my home, where iphone 7 usually shows no signal at all; bad thing is that WIFI calling is gone.
Anyone was able to turn on t-mobile WIFI calling with P30 ?
Thanks
Yes, I did.
How is It possible ?
Two answers. Yes it does supports Volte and WIFI calling with T-Mobile. No it does not support Volte and WIFI calling with T-Mobile USA if the questions are about that telecom. Please remember that T-Mobile is a German brand for Deutsche Telekom and exists in many countries.
I have Tmo and Verizon sim in the non-TMO GM1917 . I want to use Verizon SIM for Data. When i do this, Tmo drops to UMTS for calls. If I leave Tmo as data sim, both lines do VoLTE.
I don't really want to randomly mess with different dialer settings under *#*#4636#*#* - anyone have any luck with both Verizon And Tmo as dual sim doing VoLTE on both lines while keeping Verizon for data?
If not, do we think that Android 10 will make a difference?
Another reason I want VoLTE on the Tmo SIM is that is what controls VoWifi - no VoLTE, no option for VoWifi.