A Discovery Call is the first substantive sales conversation focused on understanding the prospect's current situation, business pain, goals, and buying process — as opposed to pitching. Great discovery is characterized by more questions than statements, genuine curiosity about the prospect's world, and the ability to connect pain points to quantified business impact. Weak discovery is the root cause of most lost deals: reps who don't understand the real problem can't craft a compelling solution or navigate objections credibly.