A record exists of the '999' call that was transferred by the operator from the farmhouse to the control room at 6.09am..
If no such call was made and transferred, how did the lady operator use the '999' open line system to link the phones at the house to the control room - she couldn't do that if the phone had simply been off the hook! The fact that she did transfer a call from the house to the control room using the '999' system proves somebody was still alive inside the farmhouse at 6.09am, when the call got transferred!
What I am saying can be verified by any BT engineer who worked the system at the time!
I believe the lady operator herself said as much in some witness statement or other, that unless it was an emergency call she would not have been able to patch a 'off the hook' phone at the house to the control room using the '999' system, or words to that effect!
Clearly somebody was still alive inside the farmhouse in addition to 'Crispy' the dog, a living victim who managed to make that '999' call!