66,000 AI Voice Interviews — and $20M Later, Here's What Happened

What happens when you let an AI conduct the very first interview with every single job candidate — 66,000 times? Integrity Staffing Solutions found out, and the results are hard to ignore. In this episode of AI HR Daily, we dig into one of the most concrete AI recruiting case studies to emerge from high-volume staffing. Integrity Staffing partnered with ConverzAI and deployed an AI voice agent called Recruiter Jamie to own the first-touch candidate call entirely. Not scheduling. Not FAQs. The actual first interview. The numbers tell a striking story: 66,000 AI-led conversations, an opt-out rate under half a percent, candidate response times slashed from days to under 15 minutes, and $20 million in attributed revenue over 18 months. One client alone saw time-to-fill drop by 60%. But the most interesting part isn't the speed or the revenue — it's what happened to the human recruiters who stopped spending their days on screening calls. Their Net Promoter Score jumped 35 points in a single year. That's not a stat. That's a signal about what happens when you put human expertise where it actually belongs.