Leaving the telephone receiver off-hook would have made the telephone line unavailable for use when any panic button was pressed. There is no evidence that WHF had a second line connected so that a panic button could dial out using that line instead. You've not explained how you know the time of 03:29, which you've been mentioning only relatively recently.
All telephone lines were shared unless you had a 'private telephone directory account', or similar. As I understand it, the line at the farmhouse was shared between private and business calls, for accounting purposes. BT had a way of billing for the business calls made to the business run from inside the farmhouse, known as, ' N & J Bamber, Ltd'. The phone located in the 'upstairs office' was for business use, and purposes only. The kitchen phone and the main bedroom phones were for private calls. That is the information I have been given...
It is not as certain as everyone thinks, that dads call to J (3.25am), and dads call to cops (3.26am), was using the same 'party line' to which the 'SB panic alarm' was linked to. The information I received was that the alarm was activated at 3.29am, and that it did not effect the open line left open by dad calling cops on the private side of the party line. Dad used the kitchen phone to make both the brief message call to J followed by the call to cops. The panic alarm was 'activated' three minutes after dad was speaking to cops. The panic buttons in use at the farmhouse operated via the party line fed into the upstairs office. A control box was plugged in inside Ralph's upstairs office, which could receive the signal from either of the two portable hand held transponders issued to the parents, no matter where they were inside the farmhouse or within a radius of 50 metres or more in the farmyard. I had personal knowledge of this type of transponder when I was a target criminal being hounded by the No.3 Regional Crime Squad. They put tracking devices on vehicles I was believed to be using, bugged cars, houses I visited, and my home, did phone taps. I suppose I was a guini pig for the No.3 RCS to practice the new technology they had developed or been given access to during the early to mid 1980's. All of this technology, its deployment and usage all fell under pii, and the official secrets act. Although we found out about it, we could not mention anything about how it had been unlawfully deployed or used against us. Cops couldn't use the evidence obtained from these devices, except for intelligence gathering purposes. I have it on good authority that transponder type panic alarms were installed at the farmhouse. Cops are forbidden to admit to them being installed because they were linked to a protection program involving Ralph Bamber and his wife, June, and it is not possible to get anything in writing regarding the use of this equipment at that time, because of something called, 'The Proviso', which is something the High Court will refer all enquiries to, which basically means the authorities do not have to give any explanation for why this type of equipment was used, other than the say the it maybe because it involves issues of National Security, the detection of crime, interfering with witnesses, you name it, they have an answer for everything. However, it still does not stop people from 'knowing', what the authorities do not want to have to admit to doing, or having done...