To help upgrade the telecommunications infrastructure at small offices and home offices, Iwatsu Electric Co. announced Feb. 14 that it will start selling on March 1 an all-in-one digital telephone that can connect to the Internet and a personal handy-phone system.

Alion, priced at 198,000 yen, is equipped with a digital servicing unit and a terminal adapter so it can immediately use high-speed ISDN lines, according to an Iwatsu spokesman. It also comes with a PHS, demand for which is expected to grow even more as the data communication service starts up in April. Connecting cables for personal computers based on both the Windows 95 and Macintosh operating systems are included. The firm hopes to sell 60,000 units annually.