| 摘要 |
A device for telecommunication comprising alarm devices or the like, installed in secured areas (2) such as apartments, vacation or private homes, company buildings, shops, banks, insurances and the like, has a central unit (3), which is associated with an alarm device disposed in a secured area (2) and to which surveillance or sensor units (3) are connected, and an internet portal (7), which is hosted on a server and contacted by the central unit (4) in case warning signals are received from the associated surveillance or sensor units (3). The internet portal allows for communication means (9) to contact a person (1) associated with the respective secured area (2). The internet portal can be accessed by the person (1) with a key or password. In order to allow the person responsible for the secured area (2) to obtain further information regarding the incident reported by the surveillance and sensor unit (3), before initiating emergency or alarm measures, according to the invention the central unit (4) of the alarm device associated with the secured area (2) comprises a hardware key (5) with a CPU having access memory (6), in which a mathematical encryption mechanism is stored and is designed to be not readable. The hardware key (5) can be accessed via the internet portal (7) by separately secured transmission channels. A web server is associated with the hardware key such that optionally further communication means having a browser can be used by a person contacted by the internet portal (7) to gain access to the warning signals of the surveillance- and sensor unit (3) detected in the alarm device associated with the secured area (2) by using the key or password via the internet portal (7).
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