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How to install an intercom, an intercom, or a dictaphone This device with smart sound systems works to connect the visitor with the homeowner by pressing the button.
Installation of an intercom for beginners in an easy way.
The easiest way to learn how to install an intercom for beginners.
Finally, FERMAX intercom is installed.
How to install an intercom with the door lock connection method.
How to install FERMAX intercom with door lock.
Installing an interphone FERMAX step by step.