A lot of electronic bells require the 3rd wire.
As you say if phone has only 2 wires, that is the best indicator
As you say if phone has only 2 wires, that is the best indicator
I have to say, personally, that whilst I have known what was 'technically correct' from the start, I still very much think in terms of 0207/0208 followed by 3+4 and, indeed, I think that I still nearly always verbalise or write them as such.Technically you are correct, officially and as far as the public were concerned the code and number went from 0171 plus7 to 020 plus8 etc. The practicalities of the changeover were a different matter which is why the numbers became 11 digit for the duration of the changeover. ... Even now, 20+ years on many of the public still don't understand the correct number, but it doesn't matter in the slightest.
Indeed they can for calls within their 020 area. (You still got it wrong at the end of the last line!).As you say, it doesn't really make any difference at all - except, I presume, for those who live in those areas (which I haven't for ~35 years),who I presume can dial just the 4+4 for calls within their (0207 or 0208) area.
Kind Regards, John
I guess that illustrates how 'fixed' my thinking still isIndeed they can for calls within their 020 area. (You still got it wrong at the end of the last line!).
Do I take it that, within the 020 area, this also works for 020 3xxx xxxx numbers (or any other 'fourth digit which may exist or appear)?
Ah that may very possibly have been the case depending on where you were, as exchanges 'changed over' at different times, accordingly different arrangements were in place at different times. However the publicity at the time was massive, as someone has already mentioned, so there should be no excuse for not knowing the 'official' situation.Incidentally I don't remember having to dial 11 digits at any time during the changeover except for calls outer to inner.
About the same time mobile phones were all changed to 07..... IIRCShort Access 'codes' (speed dial) went around the time (but before) of the national code change. They had to go as the codes were restricting the available number ranges in any 'phone area.
Yes they still are their property as it is very likely that they are connected to a a pair ( of wires ) in a distribution cable.
They need to protect the other circuits in a multipair cable from spurious signals that could be created by some one using a seemingly defunct telephone pair for an internal ( inside the house ) data or voice connection.
The pair may be dissed at the exchange or in a street cabinet so it appears to be dead but is still capacitively coupled to other pairs in the cable betweem house and cabinet / exchange
The old cable that supplied the Banham alarm was showing 48v. The customer asked me to remove it.
It sounds to me that you have been vigilant and careful with your actions. I very much expect your customer will hear nothing more from any officialdom. from me.I appreciate your, and others' posts, but...
The cables that were not connected to the 10 core cable coming out of the ground- I removed them.
The old cable that supplied the Banham alarm was showing 48v. The customer asked me to remove it. He now has a 3G MODEM. I cut it back and used gel crimps on the two wires that trace back to the 10 core cable. The two remaining cables that run back to the 10 core cable but are not terminated to any fittings in the house, I did the same thing.
I could not see why snipping a wire that is, for example 2m long, but not connected to anything other than the ground level BT cable would harm their network. We are talking about 2 cores being used, and not 4 pairs of twisted cable. If anything, I worked n the assumption that cross talk is more likely if old cables are running in to old properties and not terminated as close to the BT 10 core cable.
If I am wrong, then please do provide links and I genuinely will read them.
At the risk of sounding flippant, which isn't my intention, I appreciate that what I may have done is not legal, but I am not going to lose any sleep- unless someone can demonstrate that my actions have harmed anything. If that happens, I will take steps accordingly to mitigate any (potential) problems.
A telephone connection to the alarm suggests the alarm is ( was ) connected to a monitoring system. If the monitoring system contract has been terminated then I would expect the telephone line would have been discontinued / parked and dissed at the exchange.
If the monitoring contract has not been terminated then if the monitoring system performs a routine line check then the system will probably flag up a line fault.
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