Answering unknown number calls on my cell phone like a receptionist really confuses scammers.

"Good afternoon, thanks for calling!"

"Hello."

"Hi, who's calling please?"

"This is Experian Security Services calling to discuss an urgent issue with your account."

"Who are you trying to reach?"

"I am looking to talk to the owner of this phone number."

"I'm sorry, I'll need a name to help you."

30 seconds of silence.

Call hangs up.

@vees Last year I fiddled around with SIP as I wanted to look up calling numbers from my customer database. Just for fun I then wrote a script which looked up the calling number from a phone scam registry. If it was found, the script waited for the initial silence from the caller and then played a recording of me asking if they could hold on for a second as I had to get the front door urgently. The script then measured the time until the connection was closed.

Record so far is 32 minutes.