The free firmware update for the Fritz! Fon 7150 improves the features of the popular phone. Depending on the version, the Fritz makes! Fon software update for optimized voice transmission and eradicates minor errors under the bonnet. Detailed information on the latest update can be found in Donwloadbereich. With FRITZ! Fon 7150 Firmware keeping the own Fritz box up to date. Download directly from the servers of AVM.