this is all stuff from the early 1990s, probably dates from the start of the internet.
method 2 is impossible to work with modern digital phones and in car systems, however it could well have worked with analogue mobile phones (common in some countries until the early 2000s) and some very old (and insecure) car lock systems from the 1990s.
All the recent tests disproving this are using modern equipment.
its the same principle on which years ago if you were near a rave and the police helicopter went overhead you might hear the (analogue) police radio across your car radio. its also possible when it worked, the media worldwide were heavily discouraged from demonstrating this back then by the Police as even free countries communications ministries discourage broadcasters giving out valid details of crime methods.
the advice on 3 is backwards. if it did work (it is a valid code on some Nokia phones) it will actually activate Enhanced Full Rate and make the phone use more radio power (and thus battery power) but with supposed better sound quality –
3370 = EFR 0 (look on your letters on the phone dial)
Enhanced full rate – Wikipedia, the free encyclopedia
but whilst again this may have worked in the 1990s, however most modern mobile phone repeater stations will just block the code and the network will decide what codec is used – its essentially allowing a user to take up more resources than what are needed for a phone call…
these days AMR (adaptive multiple rate) is used anyway so there is no point in using this code, the network decides how much bandwidth you get and tries to trade off between call quality and power usage (they have to pay for the electric to run the repeater mast)
112 is also from the 1990s, the EU made it a europe-wide Emergency number in 1992.
Angel;201564 wrote:
4 works for me..
but you never test 112 unless you have a real emergency :you_crazy
I actually managed to do this by accident recently on a couple of occasions
had had two digital phone systems set up, a test server (not connected to the phone lines) and a production one (which is connected) as I was ready to deploy the live system.
now I have this flashy digital IP phone with a big LCD screen and four “line” buttons which can appear as different extensions. I have three on the production server and a 4th on the test one. The idea was I’d look on my computer screen and it shows what dialled numbers have been translated to and what would goe out to the telephone lines (even on the server with no lines connected), there is a complex routing on this system so I wanted to check if people coudl call 112 or 999 if required…
So I dialed 9-112 but foolishly forgot to press “line 4” button first
heard one (ring) tone, thought “WTF? how does a non connected line ring?”, realised what I had done (dialled out on the main office number) and very quickly hung up before anyone answered…
I also accidentally did this a while back as well whilst sorting out my mates broadband (dialled the wrong BT test number, the “nines gateway” rather than line test). This is what comes of snorting ketamine whilst sorting out tech issues… This time the operator did answer straight away and I had to say
“apologies, engineer testing phone equipment, misdialled nines by accident – all in order, no emergency services required…”
she said “no problem” and cleared the circuit (when you dial 999 or 112 the operator takes control of your line and its still seized even if you put the phone down)
if you ever do call 999 / 112 by accident, stay on the line and explain to the operator what has happened. people make mistakes such as cleaning phones which are off hook and pressing the buttons, or impatiently dialling 9 for outside line access on a office phone system (one stuck 9 key and this can happen)
if you just hang up particularly if the receiver is replaced roughly they may assume someone is getting beaten up and had the phone grabbed off them and the next thing you know is the cops are at your door. This can be extremely undesireable if there is anything in the building where the call occurs you would rather they didn’t see….
