OpenAI Realtime API Voice Calls Can Route to Human Sales Teams in Real Time

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A DEV Community guide explains how to pair OpenAI's Realtime API with human oversight for high-ticket B2B sales, where mistakes on large deals are costly. The AI agent answers calls immediately, qualifies buyers, and handles routine questions, while every live call is mirrored into a sales war room on platforms like Slack or Microsoft Teams. Human staff can then monitor, guide, or fully take over the conversation. The article notes that OpenAI retired the Realtime API Beta interface on May 12, 2026, so the guide uses the newer GA version. It also cites older studies suggesting faster lead response improves qualification rates, though these measured web leads rather than AI voice calls.

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