@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.