Fritz!Box 7490 - 6. updating the firmware on a Fritz!Box 7490 - YouTube
AVM FRITZ!Box 7430 (VDSL/ADSL2+, WLAN N, 450 MBit/s , TK-Anlage & Voice over IP mit DECT-Basis, Mediaserver) geeignet für Deutschland: Amazon.de: Computer & Accessories
AVM FRITZ!Box Call Monitor doesn't work with AVM fritzbox firmware >=7.50 · Issue #92811 · home-assistant/core · GitHub