Japan's KDDI is set to become the country's first telecom to launch a Web site featuring full-length tracks and master ringtones that can be downloaded onto personal computers.

Japan's KDDI is set to become the country's first telecom to launch a Web site featuring full-length tracks and master ringtones that can be downloaded onto personal computers.

Users of KDDI's new Lismo service, set to debut May 17, will be able to transfer downloaded tracks from their PCs to their mobile phones. Repertoire will mainly comprise domestic pop, and individual songs will cost an average of ¥300 ($2.62).

KDDI says Lismo is being developed with the help of Internet portal Excite, operator of the Excite Music Store.

Lismo users will be billed via their mobile-phone account.

KDDI is the operator of the hugely successful "Chaku-Uta Full" mobile-based full-song download service, which as of the end of 2005 boasted 30 million download sales.