It is "mobile communications" that realize an ultimate purpose of communication with anyone, anytime, anywhere. The mobile phone is best known work for it and has been developed remarkably. It is used for not only ordinary communication, but also mobile computer to offer data communication from outside the home. In addition to supports of speeding-up, high quality, multimedia for communication, expansion of communication area and global roaming support shows it is essential media for information-driven society. We, Micros Software, help in various form for technology development of the mobile communications that continues developing for the future.