If you want to avoid roaming charges when you travel, you have a few options to consider:
Rely on Wi-Fi.
Purchase a daily roaming plan.
Turn off roaming altogether.
Buy a local SIM.
Get an eSIM.
People Also Ask
If you get a call from an international number to your cell phone and pick it up, do you have to pay for international charges? No, unless it is a scammer, or if you call back. There are many scams out there that will charge you to call back and the scammer gets your money.
In the United States, it's required to switch your phone to airplane mode. But it's not because the plane will crash if you don't. According to Smarter Travel, by not turning your phone onto airplane mode, your phone will attempt to make connections with the cell towers around it.