| 摘要 |
The invention relates to a residential intercommunication system intended to be associated with a telecommunications station. This system is characterised in that it includes: - a control keyboard comprising: . electromechanical engaging keys, at least equal in number to that of the network lines (4, 5) as well as a release key; . an electromechanical engaging key for putting a telephone call originating from a network line (4, 5) on hold, and a new release key; . and pushbuttons (10 to 14) for pulsed control of an audio call element (16) built into each system; - a low-voltage energy supply (17); - and means of connecting different systems in parallel. <IMAGE>
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