etc. distributed between several widespread locations nationally and The File Management Subsystem, FMS, comprises of support internationally. In fact, structures with increasing geographic dis- processor software for advanced file management. FMS supports tribution can be envisaged, such as offices located remotely or even various file structures such as direct, keyed or sequential access. in the home. By applying a combination of soft (additional software Files may also be transferred to a data link via DCS. File transfer to already installed local exchanges) and hard (new switches) net- normally takes place via hard disc, which function as a backup for work overlay principles, all locations within a company can be the data link. interconnected via a Virtual Private Network (VPN). The Man Machine Communication Subsystem, MMS, consists of AXE provides a complete business communication package with central and support processor software, and hardware devices for Centrex type services which combines all the functions required by alphanumeric input/output. Man machine communication in AXE the demanding business subscriber: implementation in any network is performed via alphanumeric terminals and alarm displays. The application; both mobile and wired access; provisioning of both man machine language is consistent with the recommendations of voice and data services; service to both large and small companies; CCITT. Terminals can be placed locally or remotely and remote coverage of single site as well as multi site companies. subscriber stages can also be fitted with transportable terminals AXE comprises a full set of ISDN services in accordance with the when needed. Unauthorised access is prohibited by a number of ETSI Memorandum of Understanding. ISDN accesses can also be security systems, e.g. authority checks, passwords and identity incorporated within the business groups. cards. The first generation of AXE broadband switches will be based on pre-B-ISDN offerings, such as Local Area Network (LAN) inter- connect an