Intercom Systems are mainly used for the screening of visitors before they enter a premise.
They can offer 2-way audio communication and 1-way video verification. The basic concept is simple; a visitor presses the 'call' button at the Door Station to signal their arrival. The occupants respond by communicating with the visitors at the audio (and video) handset, then releasing the door by a simple push of the button from their tenancy. This releases the electronic lock (or opens the gate) which allows the visitor to access the building or compound.
Intercom Systems can be used for single tenanted applications with just one door station, to multi-tenanted residential properties with multiple door stations and handsets, even accommodating a concierge station for 24 hour staff.
Intercom Systems often have built-in keypads which give access to tenants by entering their PIN code. Door stations can be concealed (flush) or surface mounted, and are often vandal resistant stainless steel.
Wireless audio and video intercom systems are also available and are very popular in residential applications. Wireless Intercom systems give the resident the ability to communicate with a visitor using a portable audio/video device, with an option to remotely open a door or gate.