Chandler was sat alone in his apartment, staring blankly at the TV set; thinking only of you and how much he misses you. His attention moves to his phone as he debates whether he should call you.

You were in France, visiting your mother as Chandler broke up with you because of Joey. You stare at the telephone, debating whether you should call him.

You both pick up the phone and ring each other at the same time. Oblivious to this, the both lines say they are busy.