Saturday 21 June 2014 9.19am
Gavin Smith wrote:
They must be playing an audio recording of the dial tone.
Disconnecting from the wall won't make any difference; the connection will be maintained. I don't know if, say, after two hours or something it automatically "releases", but certainly the connection is maintained for at least 45 minutes.
I think you must be wrong. Conversely, as far as I know, mobiles do sever the connection even if it is only the recipient who ends the call.
Anyone know a telephone engineer who can comment on this? Do you really mean if someone phones me, then I hang up at my end but they don't put their phone
back properly, the line remains open and as a result I can't make a call to a different number 'for at least 45 minutes'???
I've just found this http://www.bbc.co.uk/news/business-22513041
Quote 'At the moment, when someone makes a telephone call, it is possible that the line can stay open
, even though the person receiving the call has hung up.
'When the person receiving the call picks up the phone again, they will not get a dialling tone. But in stressful circumstances, they may not notice.
'The fact that they then dial a number on the keypad makes no difference to the line, which remains in place.
'The telecoms regulator Ofcom is working with the industry to get this changed.
'Talks are currently taking place to see how easy it would be to alter the necessary technical systems, and to establish how quickly such changes could be made.'
Sounds to me as if it's a technical problem they've only just recognised - has it really been a problem ever since phones were invented, or is something that's come in with new technology?
So getting the dialling tone is all important - and as Gavin says, perhaps the scammers since that BBC report came out have started playing recordings of it!