Very good price / performance ratio. The names from the address book of my Fritz box are displayed if you call and they can easily be entered in the phone's memory (which I do not normally need as directly from Outlook's address book by TAPI Service make the call and the phone sounds). I also wanted to acquire at the beginning of the ZX410 headset, but I then decided to go for Plantronics Savi Headphones. In this regard, the performance of the phone is better than expected. According to the manual should have been with schließenen Headphone does not have speakerphone function. In my configuration you can actually between Headphones (when they are enabled) or handsfree device wählen.Dann I have a phone with headphones and hands-free function. Fully satisfied.