Imagine the phone buzzing at 3 AM, jolting you from sleep—this is the hallmark of a silent or nuisance call that offers no voice, just a ring. Such phantom rings are often used by robocall operators to confirm active numbers before launching full‑scale scams. The best defense is simple: let the call go to voicemail, avoid answering unknown early‑morning rings, and consider blocking the prefix +632. Register your line with the national do‑not‑call list and enable carrier‑level spam filters. Regularly review call logs for patterns and report persistent silent rings to your telecom provider to help curb the source.
A call was received at the unusual hour of 4am, with no one speaking on the other end.
Received a call at an unusually early hour, 4am, which is generally considered an inappropriate time for contact
A disturbing silent call was received at 4 am from this number.
I received a call from this number at the unusually early hour of 4am.
our sleep was distrupted by a call from this number at 03h47
The phone rang and woke us up at 03h47, very disturbing
