Based on the provided information, it appears that the caller with the number +6421939046 made a call and then hung up. When the recipient tried to call back, they received a message stating that the number was disconnected. This behavior suggests that the caller may have been a telemarketer or a scammer trying to avoid conversation or identification. The fact that the number was reportedly disconnected after the initial call adds to the suspicion, as it may indicate an attempt to evade detection. Overall, the caller's actions seem suspicious and may indicate malicious intent.
They rang, dropped the call, and when I tried to call back the line was listed as disconnected.