Ok right now, i only know 4 endings if you call them like it.

[Default ending most people get] - Leave the room, move to the kitchen and then move to the backdoor and pickup the cutter - cut the chains - pick the VHS inside it and put it in the VHS Recorder (start room) - open the secret room with the switch at chimney like the mod. in the video did - pickup the key where the ladder was and open the backdoor and exit. welcome to the family

[Phone Call #1] - Open the secret room with the switch in the chimney and pickup the Fuse left on the crate - Put the Fuse it in the Box - Move the stairs up - Activate the button - Move to the attic - Pickup the phone and welcome to the family

[Phone Call #2] - Open the secret room with the switch in the chimney and pickup the Fuse left on the crate - Put the Fuse it in the Box -move to the kitchen and then move to the backdoor and pickup the cutter - cut the chains - pick the VHS inside it and put it in the VHS Recorder (start room) - and move to the kitchen after they talk, left at the fridge is the lockpick, lockpick the furniture behind you (front of fridge) - Back in the present, pick up the axe from the furniture - Move the stairs up - Activate the button - Move to the attic - Pickup the phone get a different talk and welcome to the family

[Phone Call #3] - Open the secret room with the switch in the chimney and pickup the Fuse left on the crate - Put the Fuse it in the Box - Move the stairs up BUT DON'T look at the Dummy's! - Activate the button - Move to the attic - Pickup the phone get a different talk, you can walk backwards the stairs down but anyway one time you will get a welcome to the family

There must be more then just 4 "endings"