You can use communication services by connecting to the network of an overseas carrier.
No additional applications or fees are required for using your own phone even overseas.
In addition to calling, you can send and receive mails and use the Internet.
To make a call in your destination (within the service area), select "Settings" > "Cellular" > "Roaming", and check that "Voice Roaming" is set to ON.
To use data communications in your destination (within the service area), select "Settings" > "Cellular" > "Roaming", and check that "Data Roaming" is set to ON.
Note that packet communications may incur higher packet communication charges
About Overseas Double-Teigaku
In the areas eligible for Overseas Double-Teigaku, you are automatically connected to a carrier eligible for the flat-rate service
With carriers eligible for the flat-rate service, a maximum charge of ¥1,980/day (tax exempt) is applied if you use less than approximately 24.4 MB of packet communications overseas (manual carrier selection is no longer needed), while a maximum charge of ¥2,980/day (tax exempt) is applied for any amount above 24.4 MB, regardless of how much you use. This plan gives you peace of mind.
Packet communications used in areas not eligible for Overseas Double-Teigaku are charged on a usage basis.
For eligible countries and regions, please check the following "List of areas eligible for Overseas Double-Teigaku".
Check carriers eligible for the flat-rate service in your destination, how to dial, and charges by country or region.
Download the app before traveling abroad.
You can make international calls easily from your iPhone without any applications
Dial "+" or "010", the country code, and then the phone number.
Calling charges vary depending on the country or region you are calling to.
Click here for the charges
au International Calling FLAT
Flat rate international calling service from any au device (in Japan) to countries overseas!
For the au International Phone Service, please see the service introduction page as well.
Click here for details
A text message can be sent from an iPhone to a phone number of a local mobile phone overseas
You will be billed for this service with your au mobile phone charges on the month following use of this service.
(1) Tap "Message" on the Home screen
(2) Enter a destination
(3) Enter your message
|¥100/message (tax exempt)||Free|