Patent ID: 6728351
Filing Date: 2004-04-27
Classification: H04M

Abstract:
An access control system selectively providing access to a building, said access control system comprising:a main control unit telephonically in communication with entities within a building, said main control unit being mountable at an entrance to said building; a display on said main control unit displaying contact codes for selected ones of a plurality of building tenants; at least one code entry unit receiving access codes, each said code entry unit providing received said access codes to said main control unit; and at least one controlled door, access through each said controlled door being provided by said main control unit in response to a correct access code entered at one said code entry unit, said main control unit logging system activity; whereby building tenants may select whether a corresponding contact code is displayable on said display, visitors to said building viewing a list of displayable contact codes, remaining ones of said contact codes being unviewable on said display.