ShareISDN software facilitates shared usage of ISDN-Card functions across a network. All users within an organization can send faxes, transfer data and access the Internet, with just one ISDN-Card.

To use ShareISDN, you simply need to install the ShareISDN Server (SISsetNT.exe for WindowsNT/2000, SISset95.exe for Windows95/98/MI) on the computer with the ISDN-Card. Afterward, the ShareISDN Client (SICsetup.exe) should be put on every computer to access the ISDN-Card from the Server computer. ShareISDN supports nearly every application that follows the CAPI 2.0 specification. CAPI 2.0 is the standard programming interface for ISDN-Cards, and almost all ISDN applications support it.
Furthermore, ShareISDN is compatible with the widely accepted Fritz! software. The function of the ShareISDN package is also called "Remote Capi", "Lan Capi", or "Network Capi," indicating that the whole Capi-Interface of the ISDN-Card is accessible from the client computers. With ShareISDN, you can make Dial-Up connections to the internet via modem. However, ShareISDN is not the right tool for multiple users accessing a SINGLE Internet Dialup connection.
It is possible to build an internet connection via ShareISDN, but you cannot SHARE it with others. Other users can also use ShareISDN to establish an internet connection via the same ISDN-Card. However, they must build up an independent internet Dialup connection. ShareISDN is a useful tool for a company looking to share the functions of an ISDN-Card without incurring a lot of cost and effort.
Version 1.3.1:
Better diagnostics
Support for systems with several ISDN cards
Version 1.2.9: Some minor bug fixes