I'm unsure as to whether anyone else has had this experience, but we received a couple of calls about 6 months ago from what seemed to be a call centre. We could hear general chatter in the background but nobody was actually speaking to us.
I put the phone down to cut them off, then picked up the phone a few seconds later, and they were still there
. Then I replaced the handset for a minute and when I picked up again, they were still there. This went on as I left the phone for longer periods of time. However, through all of this, I was unable to dial any number, even 999.
Anyone know who this may be and why it happened?? ???