Tried it a few times and it's not terrible, but not exactly amazing either. I don't recall when this went from text message to phone call though. And I think the "You remember everything" end had a typo with "everying".
I am very curious to know what your character remembered and what the heck the person over the phone was talking about. Maybe I missed routes explaining or you deliberately left it blank? Either ways, if you didn't add it in, it might have been an interesting idea to.