There is no monthly fee, basic charge, or any other fee for signing up for au International Call Service. You are only billed for the length of each call.
Confirmation before using au International Call Service
Important Notes
When contracting with au for a communication service, you are automatically signed up for au International Call Service as well.
We automatically set a monthly limit of ¥20,000 (tax exempt) for the au International Call Service. If you reach the limit in any given month, the service will be suspended until the end of that month. If you want to adjust the monthly limit, contact the KDDI Customer Center.
If you want to unsubscribe, you can request to cancel the subscription.