The postpaid, AEON exclusive b-mobile SIMs now support voice. The terms are the same as the AEON data-only SIMs: residency required and payment via credit card. A 1-year contract is required, but it does not automatically renew. No microSIM are available.
Current users of AEON data-only plans won't be able to continue using the same SIM card.
From the product page, here is a table showing the potential pricing.
Total minimum monthly cost
|Voice Plan S||Voice Plan M||Voice Plan L|
|Data Plan A||980円||2,270円||3,080円||4,655円|
|Data Plan B||2,980円||4,270円||5,080円||6,655円|
|Data Plan C||4,980円||6,270円||7,080円||8,655円|