FritzBox

FritzBox is a brand of residential networking devices produced by AVM GmbH, a German company based in Berlin. The product line consists of combined modem/router devices intended for DSL, VDSL, fiber, or cable connections, with many models including an integrated telephone system, wireless access point, and USB ports.

The devices typically run FRITZ!OS, a feature-rich firmware that provides firewall, NAT, guest networks, parental controls, VPN server, dynamic DNS, and a web-based interface. They often include DECT base for cordless phones and can function as media servers with DLNA, NAS-like file sharing, FTP server, and printer sharing. They support Wi-Fi standards aligned to each model and frequently add features like mesh networking via FRITZ!WLAN Repeater and satellite functionality.

The FRITZ!Box line is popular in German-speaking regions; AVM markets and updates the devices with new hardware and firmware. The MyFRITZ! service allows remote access to the home network without direct IP exposure, and FRITZ!Box models can be used as a VoIP telephone system with integrated SIP-based telephony and compatibility with many VoIP providers. Management can be performed via smartphone apps as well as the web interface.

AVM continues to expand FRITZ!Box family with models oriented toward home offices, small businesses, and households requiring advanced features such as high-speed WAN, USB connectivity, and network storage. The brand is known for emphasizing user-friendly configuration, regular firmware updates, and ongoing feature development within FRITZ!OS.