Just calls and says nothing..just for the hell of it I stayed on to see how long they would and finally after 3 minutes they hung up.  Can you say, 'freaaaaaaaaaaaks'?

Get calls from 337-366-6892 and nothing heard; call # back; just silence...it IS a landline number. I am guessing the following here: The robo-caller telemarketer, based out-of-state, sets up a landline to make the "silent" phone calls to homes in the local area, to mask that the robo-caller telemarketer is out-of-state, to see if someone will answer.

If someone picks up the line, hearing silence, they hang up; bingo, the robo-call computer program logs the called number as "someone answered", then starts a series of telemarketing robo-calls within an hour or so.

I noted that exact pattern, as within an hour of the "silent" robo-call  my home number was 'hit' by 2 robo-calls from out-of-state
telemarketer robo-calls; details below!:

1 from Albany, NY, with an automated message about "a unique opportunity for a vacation"
2 from somewhere in  Arizona, for a 'truly unique business opportunity

Am I on the right line of thinking on this?

This has happen before-- when I say hello, no one answers --- when I try do dial the number,
the reply is  "sorry, party is not taking calls at this time --- the number that calls me is 337-366-6892

This has happen before-- when I say hello, no one answers --- when I try do dial the number,
the reply is  "sorry, party is not taking calls at this time --- the number that calls me is 337-366-6892

number called say hello nobody answers when try to call back busy signal