The use of a video intercom is extremely important since, in addition to being able to converse with whoever is at your door, it offers the possibility of observing who is there.
There are multiple video intercom applications, but in general, they all have the same generalized function, which is to be able to see while communicating with the visitor and to give access by the remote command to the electric lock to open the door if it is considered convenient.
The video intercom also offers access control functions which offer control mechanisms over who enters and leaves the property.
