Verify unknown callers before engaging—hang up immediately on odd behavior like repeated 'hi's or strange noises. This suggests a ping call, where scammers test active numbers for later targeting. Block the number via your phone settings to prevent repeats, and report to authorities if it persists. Enable call screening features on your device for added protection, and never call back suspicious numbers to avoid fees or traps. Stay cautious with unsolicited calls to safeguard personal info.
The person on the line made odd sounds and kept saying “hi,” then hung up after 21 seconds.