the police took the answering machine , and yes you can set it for as many rings as you want and and times you can obviously turn it off.
if the phone rings in the early in the morning when it is quiet , then personally I would always rush to the phone because I would think it must be an emergency , otherwise why would someone ring at that time. And Jeremy only lived in a small cottage - so its not rocket science. He could have got to the phone .
And I could easily get to my phone before the answering machine kicks in. Even early in the morning.
So all it goes to show is we are all different and I don't see the point of going round this AGAIN , because there is no definitive answer.