I see you're a huge fan of The Stanley Parable. This is a very nice game for those who enjoy this type. Plus the humor and story is very entertaining, and quite convincing when using big scientific words haha.
I can very much see this conversation being in the series Loki, as a time agents call center, giving technical and temporal support XD I cant get enough of it !
My on and only suggestion, is reading the phone numbers from the Numbad or the keyboard in general, as clicking is a bit slow for long numbers.
And at the end it said to enter "1800-Paradox" but i dont know how to do that, since there is no letters in that keyboard.
Other than that, i really enjoyed the story, cant wait for a bigger version :3