Caller ID = UnknownWe receive call every shift change.Most can not speak english.We have no idea who they are with.

Received several unwanted calls. Quite annoying.

always call and when you answer he or she hang-up.

My husband keep getting this call on his cell phone , like a telemarketing.When you call this # back, it will say "your call cannot be completed as dialed, pls. check the # & dial again" That's weird. We don't want this people calling us. What's the best way to do it?

got call and silence, no response when I said hello

waste of time these telemarketers..
best to not shake the hornets nest,
don't pickup at all and after a few (days or weeks depending on a**hole's patience)
they will drop you and play with someone else..
these are the bottom feeders that gives legit telemarketers who follow rules a bad name..

also, if you are with verizon, i think there's a way to block the calls by punching in some # and number
codes...