Softbank Corp. is planning to provide public Internet Protocol (IP) telephony services and wireless Internet access at McDonald’s fast-food restaurants in Japan, using its Asymmetric Digital Subscriber Line (ADSL) infrastructure, the two companies announced Tuesday.

They aim to offer the IP telephony service in as many restaurants as possible in 10 cities where soccer World Cup games will be held, and will try to be ready by the opening of World Cup on May 31, said Yasuyuki Yagi, president and chief operating officer of McDonald’s Co. (Japan) Ltd.

For the first six months, the public IP telephony service will be free of charge within Japan and to the U.S., said Masayoshi Son, president and chief executive officer of Softbank. Then, Softbank plans to charge