I mean, you’re still using a resource that was provisioned only for emergency use. The rough analogy is borrowing the exterior-mounted fire extinguisher of your apartment building to use it as a temporary paperweight, and then putting it back after two minutes.

Your use of it in this way might be benign, but if everyone is doing that, someone will eventually mess up and that resource won’t be there when it’s truly needed. Plus, what is the objective from calling your own elevator while you’re in it? Just yell lol

I don’t mean to sound boring, but while there’s a time and place for pranks and fun in an elevator, I personally think the emergency equipment is off-limits. Everything else is fair game, up to and including playing Doom on the LCD screen that modern elevators seem to have.

Deviant Ollam has two great lectures on YouTube about elevators you may find enlightening. He’s a security researcher and physical penetration tester. Short answer, no lol play with that phone

you could cause a screeching feedback loop