With just 4 keys the HT4600 is reducing its operating aspects to the basics. Via the 4 keys you are able to operate all the essential functions, including call acceptance, door opener and setting of the ringing volume and melodies. It is also possible to mute the HT4600 (the device automatically switches itself back on again after 12 hours) and activate a freely assignable key, e. g. the hall light, by keystroke.
Visual call signalling
Besides an acoustic signal, there is an additional optical call indication via LED which draws the attention to the visitor in front of the door. You can choose between 8 front door and 4 floor ringtones.
Optionally, the HT4600 is available with 6 extra functional keys for the internal communication for up to three other intercoms in the house.