Got a call from this #. I was not home and they left no message. Caller ID shows Los Angeles  CA

Caller id says "BB Trading" and they ask for a person and if that person is not available they say "no message will call back later".  They do not identify themselves or give any details about themselves.

Call over and over and when I answer, the call is ended without any dialogue.

Received a rude call...asking for my husband, when I asked where he was calling from or what he was calling about, he said "personal business."  So I went a few rounds and he wouldn't disclose where he was calling from or what it was about, so I said, "Well, if you are calling for personal business, then you know his personal cell phone number and can call that."  He didn't seem to like that.  I just said thank you and hung up.

just rings and calls daily