How you can track your usage so that you stay within your plan and do not incur additional charges while abroad.Ask your service provider about all the available options.Higher rates may apply to all of your phone's functions, including voice calls, voice mail, text messages, and internet access.Rates may be much higher because of additional roaming fees on foreign mobile networks and may vary from country to country and network to network.customers, domestic service plans do not cover usage abroad.
If you are willing to pay the charges, verify with your carrier that international roaming is activated before you travel.
Mobile telephone networks differ from country to country, and your phone may be incompatible with the networks in the country you are visiting.International roaming arrangements with the service providers in the country you are visiting and whether your mobile phone will work there.Before you travel, ask your carrier about: