No voice or us data

[Peterjang]

I am in US now. But can not use roaming voice and us data which I purchased as ad-ons. Pls solve problems or refund it

[Phil_Adelphus]

@softech  Another thing to check, make sure data roaming is enabled in the settings.

[softech]

@Peterjang 

Critical part to US roaming depends on T-Mobile/AT&T coverage and whether you can connect successfully onto either network.

If the phone is not connecting to T-Mobile/AT&T, change the Network Connection from Automatic to Manual and select and test both T-Mobile and AT&T and see which one you can connect.

With your voice issue, make sure VoLTE is enabled on the device setting.  And if it does not work, try to change the Network to T-Mobile ONLY, and change  Preferred Network Type or Network Mode to 2G and see if the calls go through.
Also, you can download VoIP app TextNow as a workaround to make calls and text if you have Wifi or if your roaming has data component and data  is working

[Rastin]

Manually select at&t or Tmoble also select 4g and if still having problems 2g. Also we are just customers here so we can not refund anything.