The IDD rate system is based on 6-second units, and the charge drops significantly after the first minute of conversation, even at Standard Rate. To save even more, you can call during Economy and Discount rate periods. Standard Rate is shown in green .
Economy Rate is shown in blue .
Discount Rate is shown in yellow . The rates are for overseas calls from general telephones. Different rates apply when overseas calls are placed from mobile or PHS phones and by KDDI Super World Card .