Confused

Whenever I try to continue a conversation while chatting, the intercom rings, or a woman shows up, or a man shows up, or the delivery arrives, or the phone rings, or I get a LINE message... What is that thing that activates every single time, like 'Eternal Force Blizzard'? It's so complicated! Also, for a while, I misread 'Eternal' as 'Ethanol'! What is that thing that doesn't activate when I want it to, but pops up frequently? I'm supposed to be talking to the chatter, but suddenly I'm chatting with the narrator! Fellow confused folks! Raise your hands! 🙋‍♀