"Yes, this is Mango himself. Listen I'm terribly busy and don't have time for a phone interview right now"

This quote by Chris Kattan indicates that he is too hectic to take a phone interview at the moment. He is most likely describing his professional life, as he is a well-known actor and comedian. It is likely that he remains in the middle of a job or has a great deal of commitments that he needs to take care of. His response also implies that he is a busy person and does not have a lot of spare time. This might be due to his profession, family life, or other dedications. It is also possible that he is merely trying to be respectful and not wishing to take up excessive of the recruiter's time. Whatever the factor, it is clear that Chris Kattan is a busy individual and does not have time for a phone interview today.