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Saint Fermax, Who Opened the Door With the Right Tone
Patron of door intercoms, DTMF tones, and anyone who, on Christmas Eve, waits for someone to buzz them in.
Life
Christmas night is the right night for a saint who opens doors: in the outdoor panel of Fermax intercoms, the DTMF tone receiver accepted the door-release command from anyone who played it into the speaker, not just from residents. An unknown visitor, whistling the tones for '1' and then '#' into the microphone, could buzz the door open and climb to the upper floors, like a Santa who comes in through the intercom instead of the chimney.
Prayer
O Saint Fermax, who opens doors to whoever knows the tone, let our intercoms listen only to those who live inside. Amen.
How to celebrate
Celebrated by asking the manufacturer for updated firmware and, when in doubt, going down to let expected guests in yourself.