Literally every time I've had UPS ATTEMPT to deliver a package to my apartment, they have not used the doorbell. Then when I leave my apartment I see this lovely post-it on the front door saying they stopped by, while I was at home, and left.
I've called them to make sure they would come when I was home. And I'd be home. Yet still the doorbell does not get rung and I get yet another post-it left on the front door to the building.
I've checked with the superintendant, and the doorbells work and are labeled correctly. So my question to UPS is: What is it about doorbells that is preventing your delivery personnel from using them?