ShareISDN Server lets you share the functions of an ISDN-Card with other users in a network. For example, every person within a company can send faxes or transfer files via one single ISDN-Card. Installing an ISDN-Card in every single computer of a network would give the same result but of course this would be much more expensive and requires a lot more effort (installing the cards, laying cables, etc). Simply install the Server on the computer with the ISDN-Card. The ShareISDN Client is put on every computer to access the ISDN-Card of the Server computer. You can use every application which supports the CAPI 2.0 specification. CAPI 2.0 is the standard programming interface for ISDN-Cards and nearly all ISDN applications support it. For example, the widespreaded Fritz! software is compatible with ShareISDN. The function of the ShareISDN package is also called "Remote Capi", "Lan Capi" or "Network Capi" to show the special characteristic: the whole Capi-Interface of the ISDN-Card is accessible from the client computers.