Caller ID showed this call as coming from "Unassigned." Of course I didn't answer, and of course they did not leave a message.

Called @11:50am. No message. Block it.

Constant calls all week long from this stupid harasser!

Wouldn't respond. Block

An unwanted call from this Los Angeles area VOIP number arrived today.  When the answering machine picked up, the caller responded with dead silence.  This is the tactic of robocallers (unlawful telemarketers) who troll the phone lines desperately seeking gullible schmucks to victimize.  They are free-range telecriminals.

DO NOT BECOME A VICTIM.  LET YOUR ANSWERING MACHINE TAKE THEIR PATHETIC CALLS.