I want to use the phone as a substitute for a DECT telephone system to call "radiation-free". Bought, put into operation, tested. Easy to set up, the phone can be operated intuitively, so I was offered. I then carried out some test calls with the handset in order, but my opponent partially can not understand when listening / hands-free, with a landline phone speakerphones a real disadvantage. It comes nowhere near to the voice quality of my old Siemens Gigaset 4000 Comfort zoom, pity, a knock-out criterion. I have returned the device back and let me continue to irradiate now.