I added usa talk and data add on

[Amul1990]

Not able to make call or receive. Internet works.

[dust2dust]

Internet works on mobile data? Or wifi? Does real sms texting in and out work?
Do you know if the phone has been enabled for volte yet? If not then the phone needs to be able to switch down to 2G GSM or you might even need to do it manually. This is only on T-Mobile. Without volte AT&T won't work for talk.

[JRod]

@Amul1990

Are you connected to T-Mobile or AT&T? 

Go to your network selection settings, turn off automatic, and manually select T-Mobile and then reboot. Ensure roaming is also on when doing this.

[BKNS27]

@Amul1990 

Reboot your phone by powering off then back on and set the network to T-Mobile.

[Handy1]

@Amul1990  Make sure your connected to T mobile and reboot the phone 

[Amul1990]

I have Samsung s10