Genesis 41:11 - Anytime, Anywhere Communication

And we dreamed a dream in one night, I and he; we dreamed each man according to the interpretation of his dream.

God's communication is always present, even while in confinement. God gave the baker and butler each a dream with a meaning of its own while they were in prison (Genesis 40:5), and likewise, God heard Jonah's prayer from within the belly of a fish (Jonah g2:2).

Genesis 41:10 - The Chief Butler remembers Joseph.

Pharaoh was wroth with his servants, and put me in ward in the captain of the guard's house, both me and the chief baker:

The ward in the captain of the guard's house was a prison, the same place where Joseph was imprisoned (Genesis 40:3).

Genesis 40:8 - As a Instrument in God's Hands.

And they said unto him, We have dreamed a dream, and there is no interpreter of it. And Joseph said unto them, Do not interpretations belong to God? tell me them, I pray you.

Joseph knew he could interpret the dream but only as a medium by which God would give them the answer they desired (Genesis 41:16 NIV).