bell pull 
noun
A cord or handle which rings a bell when pulled, typically used to summon someone from another room.I tugged the bell pull twice before feet shuffled forward....
- They're open until 6 a.m. on weekends; after 4 a.m. the door is locked, but Gloria showed us the secret bell pull.
- ‘At least four’ corrected Riann, standing up to reach for the bell pull.