Screen every unknown call before answering—use your phone's caller ID or a quick online search to check for red flags. In this case, the mention of an expiring contract from an unrecognized number screams potential scam. Hang up immediately, just like this person did, and never share personal details. Block the number to stop repeats, and report it to your telecom provider or authorities like the FTC. Scammers often use urgent language to pressure you; staying skeptical keeps you safe. If it persists, consider apps that filter spam calls automatically.
My mobile rang from an unknown number; I answered expecting a call, heard an Asian accent discussing a contract expiration, and then ended the call.