The AVM FRITZ!Web PPP over ISDN driver is software provided by AVM, a German company known for its networking hardware, including ISDN (Integrated Services Digital Network) and broadband devices. The FRITZ!Web PPP over ISDN driver is part of the software suite required to allow Windows computers to use AVM ISDN hardware to establish a PPP (Point-to-Point Protocol) connection over ISDN for internet access or network communication.

In the early days of broadband, ISDN was a popular method for internet connectivity before the widespread adoption of DSL and cable modems. AVM's FRITZ! ISDN devices were widely used for these types of connections, and this software allowed the computer to establish a PPP connection via the ISDN hardware.