The KDDI IP-phone service lets you use the Internet for voice transmissions. Cheap calling rates — when calling other KDDI IP-phone subscribers — make this an attractive service.
With conventional phone systems, the further away you call, the more you have to pay. But phone calls between IP phone subscribers are free, and uniform rates apply in Japan when calling regular subscriber telephones from IP phones. If you often call people who live far away, this is by far the best plan for you!
Uniform Rate System Nationwide for calling NTT Subscriber Phones from IP Phones (A¢ªC)
Join KDDI's IP-phone service to enjoy cheap international per-minute calling rates. For example, you can call the US ( mainland ) at any time of the day for only ¥9 per minute!
KDDI International Phone Service Lineup List