A quick glance at the reports shows a pattern of missed calls without voicemail, followed by a dead‑end when dialing back. This behavior often points to spoofed or invalid numbers used by automated systems to mask their true origin. Protect yourself by not returning calls to unfamiliar, silent callers; instead, let the call go to voicemail or use a reverse‑lookup service if you feel compelled to investigate. Consider blocking the number on your device and keep an eye on your call log for any repeat attempts. Staying cautious and leveraging built‑in phone security features can curb unwanted disturbances.
The caller never leaves a voicemail. When I tried returning the call, I heard the 'no such number' tone—might be a spoofed line.