NTT DoCoMo and Microsoft will construct the CE operating system (hereafter referred to as Windows CE) environment, which suits the call quality characteristics of cellular telephones. The exchange of technological information between NTT DoCoMo and Microsoft will help realize the Windows CE operating system that can make easy remote access available to cellular telephones. Also, this technology is scheduled to be applied one by one to other operating systems (hereafter referred to as Windows).

NTT DoCoMo and Microsoft will jointly develop data center services accessible in the wireless environment. The data center service will enable users to access e-mail, individual schedule tables, and address books, etc. from their terminals.

By combining NTT DoCoMo's cellular telephone technology and Microsoft's data center service technology, the data centers can be easily accessed from mobile terminals.

Furthermore, NTT DoCoMo and Microsoft will also study the feasibility of joint development of mobile terminals (including handheld PCs, palm-sized PCs and developed forms of cellular phones) and software that are most suitable for accessing data centers, on the basis of Windows CE and Microbrowser (currently being developed by Microsoft).

Regarding Windows CE products, NTT DoCoMo and Microsoft aim to construct an environment where users can easily enjoy PHS high-speed data communications services through conducting joint development of multimedia applications which enable users to enjoy high-speed data communications with Windows CE, and discussing ways to improve Windows CE performance.

NTT DoCoMo and Microsoft will further advance their cooperative relationship and promote the development of mobile multimedia.