TapiRex shows a contact for an incoming phone-call with image, name and company. Microsoft Outlook is supported as source for the addresses as well as any other ODBC-database (like Access, mySQL, SQL-Server, ...).
The program can even show incoming calls on any telephone plugged to any computer in your network (client-server mode).

Any developer can extend the program with its open architecture. A free SDK is available. Many free plugins are available (like Speech output of caller, run any application on a call, notification and call history in Microsoft Media Center, ...).

The TapiRex Server forwards call information to the connected TapiRex clients. Not every single computer has be connected to the phone line, but only the server.