What does the narrator mean when he writes that there was a wild inconsistency in the house

Then she heard his step on the stair away down on the first flight, and she turned white for just a moment. the phrase "she turned white for just a moment" is mainly used to show that della has very fair skin. is afraid of jim's reaction. is beginning to get an illness. had become extremely angry.

Which is easier to identify direct or indirect characterization? why

Iam trying to  get  a call through to san francisco. (send, put)