US roaming not working

[Kencs]

I paid for US roaming. I can use data but can't make or receive calls or retrieve voice mail.

[Dunkman]

@Kencs 

Do you know whether you have VoLTE service activated yet for your account? If activated, check out the following article on VoLTE:

https://www.publicmobile.ca/en/ab/get-help/articles/volte

Considering adding prefix +1 in front of area code

If VoLTE is not activated, then your talk roaming will be dependent on the T mobile 2G network.  This network coverage varies across the USA. Try to manually connect to this network.  The talk roaming experience with 2G network is hit and miss.  

https://www.publicmobile.ca/en/ab/get-help/articles/us-roaming

[softech]

@Kencs what phone do you have?

try to enable VoLTE first

iPhone: Settings->Cellular->Cellular Data Options->Voice & Data, enable 4G or LTE there

Pixel:  Settings->Network and Internet->Internet, click on the settings icon besides SIM 1, turn on 4G calling there

Samsung/ Other Android: Settings->Connection->Mobile Data, enable VoLTE there

 if that doesn't work, try to change the Preferred network type or network mode to 2G and see if it helps.  But you might need to change back LTE for voice

if nothing works , download VoIP app TextNow as a workaround to make free calls and check VM using the app