Watch out: repeated silent calls often signal automated nuisance. Callers use brief rings and a long pause to trick voicemail systems or to harvest numbers for future spam. If the pattern is two missed calls a day with a 15‑second silence before hanging up, it’s likely a harassment or robocall campaign. Block the number on your phone, report it to your carrier, and consider a call‑blocking app. Never return the call, especially if no voice is heard. Keep a log of timestamps; if the volume escalates, file a complaint with the FTC or your national communications regulator. Stay vigilant and protect your contact list.
Two missed calls per day have been received from this number over the last two weeks; when I finally answered, the line stayed silent for about 15 seconds before the call ended.