(at around 1h 8 mins) After Jude's death, Emily runs up a flight of stairs, seen with the sharp tool she used to stab Travis with. When she exits the stairs and enters the hallway, she is empty handed.
(at around 32 mins) When the girl answers the phone at the nurse station, she does not depress the lighted line button. This was necessary on these types of phones. As it sat with no line depressed, she would have had no connection.