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Spanish landline number reported by multiple users for making spam calls with a call-and-hang-up pattern. Users complain of a high volume of daily calls, even multiple in one day, with no response when answered. The main annoyance lies in the insistence and the impact on waiting for legitimate calls.

可能的目的：The likely purpose is spam or scams, though the 'call-and-hang-up' method might indicate a strategy to generate curiosity or to identify active numbers without incurring voice costs.