Functionality
Typical functionality of a Fritz!Box includes: * a built-in broadband modem: ** a DSL modem (most models) ** a cable modem (6xxx series) ** a 3G or LTE (telecommunication), LTE modem (68xx series) ** a fibre broadband modem (54xx series) * a built-in router (computing), LAN-WAN router, usually with a network switch supporting Fast Ethernet or, in newer models, Gigabit Ethernet * in nearly all models, a wireless access point: ** in the 13-centimeter band, 2.4 GHz radio band, in accordance with IEEE 802.11b-1999, IEEE 802.11b (11 Mbit/s), IEEE 802.11g-2003, IEEE 802.11g (54 Mbit/s) and IEEE 802.11n-2009, IEEE 802.11n (up to 450 Mbit/s) standards ** in many newer models, also in the 5 GHz radio band, supporting the IEEE 802.11a-1999, IEEE 802.11a (54 Mbit/s), IEEE 802.11n-2009, IEEE 802.11n (54 Mbit/s—450 Mbit/s) and IEEE 802.11ac (up to 1.27 Gbit/s) standards * a Private branch exchange, PBX, particularly in the 7xxx series models: ** a built-in Session Initiation Protocol, SIP client for internet telephony (Voice over IP, VoIP) ** a DECT base station to connect cordless handsets ** a SIP server to connect SIP-compliant phones or software devices ** support for physical phones (extensions) connected via ISDN and/or Plain old telephone service, analog interfaces ** an answering machine and software-based fax (receiving only) * in most models since 2006, a Universal Serial Bus, USB port to connect external storage or printer which may also be used to connect a e.g. a 3G or 4G mobile modem * a network-attached storage, NAS and a DLNA/UPnP compliant media server in most models with newer firmware Many Fritz!Boxes offer wireless repeater functionality which, in earlier firmware versions, was compatible with the IEEE 802.11-1999 standard wireless distribution system before being replaced with a proprietary system in more recent firmware versions. IPv6 support was enabled from firmware version 4.90 onwards. Fritz!Box devices operate under the control of Fritz!OS, a specialized Linux distribution, which provides a graphical web interface for user interaction.Domestic versions
Fritz!Box devices with an integrated DSL modem come in three versions. The version for the German market uses an ISDN interface for voice. For the Austria, Austrian and Switzerland, Swiss markets the voice interface use traditional Plain old telephone service, POTS and also has a German-language user interface. The international version has a multi-language web interface and provides support for POTS and usually ISDN for voice. While the international version supports both the most common G.992.3, ADSL Annex A POTS and G.992.3, ADSL Annex B ISDN, the German version offers hardware support for Annex B only, which is the sole standard used in Germany, with additional support for Annex J in newer models.References
External links
* {{authority control Broadband Linux-based devices Networking hardware Telephony equipment