Kyodo News International, Tokyo Knight Ridder/Tribune Business News
Oct. 7--TOKYO--The number of subscribers to the Softbank Corp. group's Internet protocol-based (IP) phone service topped 3 million as of last Friday, Softbank said Tuesday.
The Softbank group launched the low-cost IP phone service, called BB Phone, in April last year. The service is operated jointly by Softbank BB Corp. and Yahoo Japan Corp.
BB Phone subscribers can talk to each other free of charge by dialing ordinary phone numbers with conventi