A multi-unit intercom system is disclosed in which a plurality of remote stations can be signaled from a common station. Switches are provided at the remote stations for persons located there to either control a two-way communications link between the particular remote station and the common station or operate an electrical device such as a door latch for admitting the person at the central station to a facility.Get the best multi-door multi-unit building entry intercom systems in the market for your new or existing building. Quality systems at friendly costs to any budget! A whole variety of