Line dead except for a computer blip noise.  The same as from 305 560-5673 who called less than five minutes earlier.

They hung up when the heard the beginning of my message. Just another scammer or solicitation call.

do know this number they called then hang up, very annoy, for some place in FL.

Didn't answer call, but what used to be 800 calls are now moving to real area codes.  Typically, the line is dead or sometimes open with no sound on the other end.  No person or robot answers.  Lots of calls of this type per day - I stopped answering.

None, no ring now just appears on phone.