Adjust the settings in your phone to disable data roaming, and then turn it on only when you need it. Head over to the Device tutorials page, select your device, and you'll find steps to change these settings. Avoid using apps that use a lot of data when roaming, such as streaming video. Turn off background data sync for apps. Prepaid Mobile Internet Service: Service available for time period and/or usage amount provided by Pass. For time period, a day is 12:00 a.m. to 11:59 p.m., Pacific time. Usage rounded up to the nearest MB each session. Only one Pass may be active at a time. Account suspended after 365 days of inactivity. Some peoples are confusing between "domestic roaming" and "network switching by Google Fi". Yes, domestic roaming is supported when you're on T-Mobile or USCellular on Google Fi. However, network switching between T-Mobile and USCellular is only supported on Designed for Fi phones. But, domestic roaming on T-Mobile network does work for every Double check that the Data Roaming toggle in the network settings is turned on. Be aware that default roaming can be pretty slow. Us a PING test, rather than your favorite video streamer to be sure you have data. Call T-Mobile international support at +1-505-998-3793. (It's a free call from your T-Mobile phone. The truth about Mexico/Canada Roaming. Rant. This rant is in regards to T-Mobile鈥檚 deceptive advertising practices in media, online customer service and in store sales used to entice customers to switch to and/or use T-Mobile services that claim limitless calls, text and data services in Mexico and Canada. On the roaming page you can look up rates for cruise ships and ferries. For Princess, it's $15/mb, $0.50 to send a text (receiving is free), and $5.99/min for calls. I think that means you would pay $5.99 for a call, even if you didn't answer it or hung up immediately. 1. Dzwo艅 i wysy艂aj wiadomo艣ci do Polski za darmo, korzystaj膮c z dost臋pnych w okolicy sieci WiFi. W niekt贸rych krajach aby m贸c w pe艂ni korzysta膰 z roamingu nale偶y uruchomi膰 us艂ug臋 Tani roaming. Wi臋cej szczeg贸艂贸w odno艣nie taniego roamingu znajdziesz tutaj. Sprawd藕, czy Tw贸j telefon znajduje si臋 na li艣cie urz膮dze艅, na kt贸rych From my understanding these are the ways to not get charged: 1. Call to disable Voicemail and turn off call forwarding (you will still get phone calls) 2. Disable Voicemail and set up Call Forwarding to Google Voice or Voicemail (you will get voicemails but calls won't show up on phone). 5zO5RrS.