BT phone constantly ringing
My parents had their old BT phone connection box replaced with a modern one a couple of months ago, and they also had a new phone line put in to their sitting room. The phones have been fine, but my mum has just told me that since 1.30 am this morning, the phones have been constantly ringing. She has dialled 1471 and nobody is there, etc. She called BT and they have told her that there is nothing wrong with the line and if they want an engineer to come out, they will have to pay £120 for them to look at it. I've suggested that she pulls the leads out and then puts them back in a few minutes later, but I don't know if this has worked yet. The phones are a matching pair that were bought from Currys a few months ago. Does anybody have any ideas as to what is happening as regards the ringing? Thank you.