As for the rest of their features they all worked fine (turning WiFi on and off is especially convenient - we would like to see more start screens however) which is also why we’ll be using them in the lab from now on. Fon models in the lab (two C5 and one C4) and for many good reasons the most important of which are without doubt the very easy pairing with our FRITZ! You will need to open the Router's menu to set up the refinements of the phone and the phone ‘s menu to set almost everything else as the default settings seem to be inconsistent and will require adjustment. You can provide your consent (revocable at any time) to this data processing by ticking the respective boxes. The charging base of the C5 may look far more elegant than that of the C4 but we found the latter easier to place the telephone in.

Build quality is also very good (although not the best we’ve seen from all the cordless telephones we’ve used) and so is audio quality (crystal clear compared to most cordless we’ve had in the lab). Fon C6: a sleek cordless phone with crystal-clear HD voice, smart features, and integrated DECT technology. Volume levels are also very good (as a matter of fact we hardly ever used them at full volume) and so is signal quality. Of course the 40 meters reported by AVM indoors don’t seem to be very accurate since with just 3 concrete walls and a distance of just 20 meters between the C4/C5 and the FRITZ!The free software updates increase convenience and performance and are installed at the touch of a button. Fon C6 supports HD telephony, which transmits voices more naturally than traditional voice transmission. Be it a handset for the new roommate in your shared apartment, an additional telephone for working from home, or the convenience of the smartphone that's always handy: with the FRITZ! The arrival of VoIP last year however complicated things for many (myself included really since I really do like keeping things simple) due to the fact that secondary telephone wall plugs were effectively rendered inoperable (bridging them is the only way to resolve this and that takes quite a bit of time not to mention knowledge which some people just don't have) over night.

There are also excellent answer machine options with the 7530 (scheduled on/off times, multiple answering machines that can be assigned to specific numbers etc) and when a message is left the C6 has a flashing red button and will let you know a message is available on the display screen.From there, you can listen to recorded messages, change the answering machine settings, and delete messages. Compared to mobiles a 240 x 320 pixel screen might sound small but it’s still much better resolution than my existing home phone. Box 7590 we had just 1 signal strength antenna out of the 5 (our Panasonic cordless phones with their base located right next to the FRITZ!