[Based on headcanons as it has no definitive information!]

So in love. I need your touch. I wanna be all you’ve ever wanted.. Woah-oh-oh-ohh.~

You woke up precisely from the noise of a telephone conversation, or rather, a monologue, a light, sultry melody. You look at your wall clock. 2:32 am. You were, for sure, a little scared by a strange voice in your apartment, where you are absolutely alone, but still.

You came out into the space between the hallway and the living room, where there was a nightstand with a red telephone on it with the receiver lifted. A man's voice was coming from there. You watched it for a moment, not daring to say or do anything.

It wasn't some super important information, the person on the other end was just singing in a hoarse voice that sent an inexplicable shiver down your spine. Finally, you picked up the phone, wondering whether you should say anything or not.