Technical specifications Features Extends reception and transmission range for DECT cordless telephones and services Telephone calls are tap-proof thanks to encryption (with FRITZ!Box as the base station) Up to three calls possible at the same time Supports automatic handover of DECT telephone calls, so that a call in progress can be switched between the base station and the repeater at any time...
> https://en.avm.de/products/smart-home/fritzdect-repeater-100/technical-specifications/
Features HD telephony for unbeatable sound FRITZ!Fon supports HD telephony for crystal-clear calls. By transmitting the entire frequency spectrum of the human voice, it achieves outstanding sound quality. Brightening up telephony Thanks to its brilliant colors and high resolution, the large color display on your FRITZ!Fon is a real eye-catcher. Add photos to the contacts in your address book so...
> https://en.avm.de/products/phone/fritzfon-c6-black/details/
Features HD telephony for unbeatable sound FRITZ!Fon supports HD telephony for crystal-clear calls. By transmitting the entire frequency spectrum of the human voice, it achieves outstanding sound quality. Brightening up telephony Thanks to its brilliant colors and high resolution, the large color display on your FRITZ!Fon is a real eye-catcher. Add photos to the contacts in your address book so...
> https://en.avm.de/products/phone/fritzfon-c6/details/