An intercom (intercommunication device), talk back or door phone is a stand-alone voice communications system for use within a building or small collection of buildings, functioning independently of the public telephone network . Intercoms are generally mounted permanently in buildings.
There are two kinds of intercom:
IP which can be controlled remotely.
analog can be used in local.
We provide the latest technologies of Intercom systems, including supplying, installing and programming systems.
