Our apartment is quite spacious, that is a lot of corners and walls. By this is an area in the DECT coverage through the FritzBox 7390 very bad or breaks most from. Hab then bought the AVM FRITZ! DECT Repeater 100. After small initial difficulties with the application (probably my fault) everything works perfectly: I can now easily in receiving weak area calls without noise or other background noises (AVM FRITZ! Fon MT-F). When switching from the Fritz box on Repeater or vice versa you sometimes hear a cracking, but everything else is good. If you look closely, you can see in the green bar at the reception FritzFon MT-F orange "1" for reception via Fritz box or an orange "2" for receiving via repeaters.
