Sonnerie fixe is French for a fixed landline ringtone, and this version comes from a Gigaset cordless home telephone. Gigaset handsets, originally made under Siemens, became a common sight in European homes for DECT calls, with simple electronic rings designed to be heard from another room. Clips of the ring later circulated on soundboards as a clean, recognisable telephone sound without speech or music over it. It remains popular because almost anyone instantly understands the meaning, making it useful for call gags, waiting scenes and nostalgic domestic setups.