Roaming on T-Mobile?

[werkx]

I just switched over to T-Mobile from Sprint recently (obviously USA based), and have a question about roaming. Back on Sprint, there were options to set roaming both cellular (voice/text) and data separately, but here on T-Mobile I do not see an option on my Samsung Galaxy S10 to set cellular roaming. I'm hoping for some help explaining how T-Mobile does roaming and how best to set my S10 to take advantage of it. Oh, I am on the Magenta Amplified plan (similar to Plus, I think).

When I was on Sprint with my S7, under Mobile networks there were both Domestic and International roaming where under each I can toggle roaming Voice and Data separately.

Now, with the S10 on T-Mobile, I can't find any Voice roaming settings. Under Mobile networks, only Data roaming for toggle on/off (currently on).

So, does T-Mobile roam on other networks for voice (and text) or not at all, hence there's no option to toggle it on/off on the S10?

In addition, is there a limit on domestic data roaming?

 

[mustang7757]

I just switched over to T-Mobile from Sprint recently (obviously USA based), and have a question about roaming. Back on Sprint, there were options to set roaming both cellular (voice/text) and data separately, but here on T-Mobile I do not see an option on my Samsung Galaxy S10 to set cellular roaming. I'm hoping for some help explaining how T-Mobile does roaming and how best to set my S10 to take advantage of it. Oh, I am on the Magenta Amplified plan (similar to Plus, I think).

When I was on Sprint with my S7, under Mobile networks there were both Domestic and International roaming where under each I can toggle roaming Voice and Data separately.

Now, with the S10 on T-Mobile, I can't find any Voice roaming settings. Under Mobile networks, only Data roaming for toggle on/off (currently on).

So, does T-Mobile roam on other networks for voice (and text) or not at all, hence there's no option to toggle it on/off on the S10?

In addition, is there a limit on domestic data roaming?

I have the unlimited plan so not sure about roaming charges.
There is a toggle to turn on roaming I'll provide a screenshot so you can compare.
Go to settings>connection>Mobile network

 

[werkx]

I have the unlimited plan so not sure about roaming charges.
There is a toggle to turn on roaming I'll provide a screenshot so you can compare.
Go to settings>connection>Mobile network
View attachment 305718

Thanks. Yep, I have the same, but that's data roaming control. Is there such a thing as Voice roaming control on T-Mobile, or is that inherent within the plan so no end user setting to control it?

 

[mustang7757]

Thanks. Yep, I have the same, but that's data roaming control. Is there such a thing as Voice roaming control on T-Mobile, or is that inherent within the plan so no end user setting to control it?

I haven't seen it , you can check your MyT-Mobile account log in if anything there.

 

[Rukbat]

Roaming is different on GSM and CDMA.

On GSM, it you're in an area in which there's a local roaming partner, you roam on that tower. If there isn't, and there's no TMobile tower, you're off the network.

Data is limited to your TMobile plan, roaming or on a TMobile tower. (There's no PRL update either - the towers handle that.)

 

[werkx]

Roaming is different on GSM and CDMA.

On GSM, it you're in an area in which there's a local roaming partner, you roam on that tower. If there isn't, and there's no TMobile tower, you're off the network.

Data is limited to your TMobile plan, roaming or on a TMobile tower. (There's no PRL update either - the towers handle that.)

Okay. Thanks for the education regarding GSM roaming.