Making phone calls with the Gigaset DA310 is a breeze, as it allows you to program up to four function keys and ten speed dial keys. Also, this phone allows you to choose one of three ringtones and adjust their volume. You can even turn off the sound completely to enjoy the silence. There is a special key to redial the last dialed number. Thus, the Gigaset DA310 is an easy-to-use wired desk phone with all the features you need.