Live agent, onshore
A domestic verifier reads the approved script and listens to the answers.
Strong at: judgment. A good verifier hears hesitation, slows down for a confused customer, and knows when to stop.
Where verifications go wrong: coverage and drift. Sales close in the evening and on weekends, and verification waits for a staffed seat. Over months, verifiers paraphrase to save time and the disclosures move away from the approved text. It is also the costliest of the four to staff.