This is the software publisher's description.

With TapiRex, you will always know who is calling you at the first ring of your telephone!

When your telephone rings, TapiRex will look into your contacts to let you know who is calling and show the name, image ad any additional info of the caller.

The contacts can be stored in any Database or the program can import the contacts' information and image from Microsoft Outlook, Skype or the Windows Address Book (WAB).

The name of the caller or the callerID can be spoken via Windows speech-output.

If a callerID is not in your contacts, the program tries to lookup the name of the caller in the internet.

The easiest configuration for TapiRex is, when your pc is connected to the phone-line directly via modem, ISDN or any other TAPI- or CAPI-enabled device (nearly every ISDN adapter, modem or telephone box) or has a locally installed Skype.

TAPI- or CAPI-drivers for your modem/IDSN-card are supplied by the manufacturer of the hardware (delivered on the driver CDs or available for download).