I can see Tony changing it to only calling if Tony isn't able to respond to JARVIS's inquiries if he's all right, and then they have to change it again because, Yes, something blew up but it was cool and, oh my God, I was just busy thinking, you didn't have to get all sniffy about it.

Tony: okay, new rule, I have to have no pulse, not be breathing or have lost, like, 15% blood volume.
JARVIS: Sir, isn't that basically an average Tuesday?
Tony: Don't get sassy, you're on thin ice already.