The problem we have is that we can have one or the other. If I disconnect the Broadband then the telephone works without issue. If I reconnect the broadband then the broadband works without issue but the telephone doesn't.
There is a slight white noise coming from the phone instead of the usual dial tone. More curious is that if I disconnect the broadband, then pick up the phone, then reconnect the broadband, I get interference. At the minute this is in the form of football commentary. I can't tell who it is as it is not very loud and anyway I wouldn't want to ruin the score for someone who is recording it!
I telephoned BT's auto-line-check service and it concluded that the fault is within the house.
Any help would be appreciated.