Add-ons

[Linc876]

If I purchase a US roaming add-on for 15 days when would the add-on start?

[Handy1]

@Linc876  Do you know if your phone/account has voLTE enabled ? If it dose great but if not your gonna experience spotty service at best . You can test for this before hand . Turn off  wifi set phone to LTE . Now make a phone call does it stay on LTE or drop to 3G ? If it stays on LTE then bingo you have voLTE and you should be fine with US roaming . And the US add on will start immediately after purchased . And when in the US just leave phone set to 4G/LTE  not 5G and make sure your connected to T mobile or AT&T . And that you have data roaming turned on in phone settings . Enjoy your trip 🙂

[HALIMACS]

The MOMENT of purchase @Linc876 

So it's best advised to purchase the add-on based on your trip duration and the day before you enter the US if you're going to be there 2 weeks or longer.

[Phil_Adelphus]

@Linc876   The same day you buy it.