Just looking at my ping logs from last night. Each of our phones was offline at one point for at least 10 minutes. The range was from seconds to 10 minutes when pinging every 5 seconds.
This is on an iphone 7+ and 8+.
Been doing this a long time. It sucks that my system won't arm until I'm gone for at least 15 minutes, but its nice that its instant when I arrive home.
