Japan's largest mobile services provider NTT DoCoMo has developed an app that will allow people to use their native tongue on calls and translate them almost immediately.

NTT Docomo will initially convert Japanese to English, Mandarin and Korean, with other languages to follow.

The Japanese translator application, which is called Hanashite Hon'yaku, can reduce companies' costs by not hiring people with multilingual skills, among other uses. Nevertheless, the system is not ...