British Telecommunications Plc and Microsoft Corp yesterday announced they have started rolling out their joint trial of a wireless internet portal based on Microsoft Exchange services. The service will be offered to 1,000 users at existing BT customers British Broadcasting Corp, Nortel Networks Corp, KPMG LLP, and Credit Suisse First Boston Corp.

Users will be able to access facilities such as email, calendars, address books, and other information services, via a mobile phone. The system will be based on Exchange Server, built using Exchange, Windows NT Server with MS Internet Information Server. Mobile handsets will be manufactured by Samsung Electrontics Co Ltd and Sagem SA, using the OS-independent microbrowser Microsoft acquired with STNC Ltd in July.