Who called from 9713027191

Repeated calls, no voice mail.  When I call back it rings many times, eventually someone picks up, but doesn't talk.

I got a call from them. The Caller ID said "Security". When I answered it sounded like a call center, but they hung up immediately. I tried to call back and got a busy. It makes me think if they were checking if someone was home.

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ID says security - also had calls from these other numbers, all with the security ID. The last one 971-302-7189; 971-302-7275 and 971-302-7191. Information from other sites indicates these are all phishing and scammers.