John: Hi, this is John Winchester. Who am I speaking to and why are you calling me?

Dean: Do you not have my number saved?

John: Who is this?

Dean: Who is this???

John: Who am I speaking to?

Dean: It's...it's Dean.

John: Dean, why are you calling me?

-vs-

John: Hi, this is John Winchester. Who am I speaking to and why are you calling me?

Sam: Dad, do you not have my number saved?

John: Sammy! It's good to hear your voice son!