Door Entry systems provide a more advanced and varied set of capabilities compared to a standard Access Control system.

Primarily used within a building where there are:

  • multiple occupants (either a block of flats (or similar communal living facility with multiple living areas each secured by their own secondary front door) or an office building with multiple tenants)
  • reception facilities which are not permanently staffed
  • distances between where the receptionist is located and the outside door
  • higher than normal security risks
  • multiple points of entry to the building
  • larger premises with multiple buildings all under the control of one organisation


Door entry systems can either be activated externally by authorised personnel through the use of more traditional access control user identification credentials (such as a PIN, Proximity Fob or Biometric identification), or they can be used to permit access locally or remotely; which can also be subject to additional security checks.


Basic door entry systems will simply be fitted with a ‘call’ button externally and a bell or buzzer alert which sounds when the button is activated. The ‘caller’ can then be ‘buzzed’ in through the activation of a door release button.


More commonly, door entry systems will have a 2 way intercom, whereby the occupants can communicate with the ‘caller’ and decide whether to permit entry.


With the advances in video technology and reduction in component costs, more modern door entry systems will have a video intercom, whereby the ‘caller’ can not only hold a 2 way conversation with the occupants, but they can also be visually verified before the occupants allow access.


And finally – the latest top end systems are integrated with (Internet Protocol) IP door entry capabilities allowing the building owner or occupant to remotely permit access from anywhere in the world where they have internet access. An example of which could be where someone is expecting a delivery, but is away from the office when the courier arrives. When the ‘call’ button is pressed, an alert is sent to the occupant’s mobile device, through which they can then hold a 2 way conversation with the courier, (whilst watching them through the built in IP camera) and then remotely permit access for them to leave the parcel in a secure area, ready for the occupant’s return.


Additionally – a door entry system can also be sited on purpose made stainless steel posts to provide any of the above types of authentication (PIN, proximity readers, biometric, basic call button, 2 way intercom, video intercom or even IP based) when linked to vehicle gates or barriers, thereby providing additional levels of security to a site before the ‘caller’ even gets to the building.


For more information on these, or any of the other systems we offer, or to find out how they can best be integrated to add further value, please contact The Thompson Group on 01902 658822.