Intercom is a separate InterCall that is usually attached to a separate camera unit installed on the doors of houses or companies and is one of the forms of communication systems between individuals. It is considered an integrated security system. Today these devices are considered a safety factor for individuals, especially as they are used to protect houses, villas and companies from strangers, thieves and intruders. Intercom systems also allow residents in the building to grant access to visitors by opening the door remotely online
