I recently had an Openreach engineer in to install a second phoneline to allow me to bring my BT package over as the original line was already taken up by my neighbour's ISP.
When they came in they installed a cable coming out of the original lines master socket they assured me that they are installing a completely new line. A day later everything seemed to be going well aside from the lack of a dial tone on the second line both me and my Neighbour were able to recieve broadband from our individual ISPs.
On the third day however, everytime I turned my hub on my neighbours hub lost all connection to the internet and mine followed suit, so I kept mine off to allow my neighbour to continue to use her internet. I contacted BT about the issue and they told me it was a problem with the cables outside the property and that an engineer would be round to fix the problem.
He told me that there was a damaged cable that needed to be replaced and that judging by the sound of the original issue I complained about rather than installing a new line the original engineer had just installed an extention to the old one as my neigbours line now comes up with my phonenumber.
Once he left my neighbour and I had found that neither of us could now connect to the internet at all. Of course my neighbour is blaming me for this whole issue and it is causing me great stress and is disrupting my work.
I rang BT up and explained the further issue and they are telling me it could take up to 10 days to sort out.
I am now worried that Openreach have inadvertently taken over my neighbours line with mine. However if this is the case I am confused as to how we were both able to connect to our individual ISPs.
The easy way to explain my living situation would be liking it to a bedsit. There was a line at the address already but the girl who lives across the hall has already claimed it for her service.
As for the master socket I was only telling you what they told me, they said that there was a spare line going into the master socket in case we wanted a second line.