Data Only
Your phone will automatically connect to the best data connection for internet, however, if that does not happen, go to your phone’s settings, select “Connections,” then “Mobile Networks,” choose “Network Operators”, and select one of the available networks
Under the “Mobile Networks” tab of your cell phone, ensure that roaming is set to “ON,” “Network Mode” is set to “Automatic” and that there aren’t any “Access Point Names” listed. This information also applies to use with a modem.