"911 Where's your static?"

This one is rather strange.

The other night I got an abandoned 911 from a residence not too far from Police Headquarters. I answered the phone and all I heard was static. Couldn't tell if anybody was there talking or not. I hung up 911 and picked up the 7-digit line and dialed the number back. It rang once then I started hearing the static again so I just hung up. I dispatched a cop to that residence as an abandoned 911, busy on the callback. While he was en-route, I tried calling it again and got a normal busy signal. Three cops arrive, and after a few minutes, they asked me to try calling the number again. All that was running through my mind was that they had multiple phone lines and they weren't sure which one they might have mistakenly dialed 911 from. Well, when I called it back, I got a fast busy signal and stated that over the radio. A few minutes of silence go by and one of them says they've spoken to a neighbor and the owner of that house died just over a year ago, there's nobody in the house, and the family has been trying to sell it. They were also not aware of any phones that were connected... as far as they knew, the house was completely empty.

Isn't that just STRANGE? Kinda freaked me out a bit.

To top all of that off... the whole night it's sounded like somebody was walking up and down the hallway, up and down stairs, or walking around the front lobby at random times throughout the shift. I've checked the cameras and physically looked in those areas I could get to without walking out of Dispatch and there was absolutely NOTHING there and all of the cops were out on the road. I thought maybe one of them might have sneaked in and is messing around... but what explains it when everybody I had on the road is out on a call?

Hiding in the corner,

Dispatcher 6