AI voice agents are great at the live conversation and terrible at the follow-up. When an agent says "I'll call you back at 3," or a call hits voicemail, no-answer, or busy, that callback usually falls through the cracks. redialer.io is the missing callback layer. Your Retell agent handles the conversation; redialer.io handles the redial. It listens to Retell webhooks, detects how each call ended, and schedules the outbound follow-up call — or an SMS — at the requested time. If a call doesn't connect, your retry rules decide when and how often to try again, with sensible limits. It's built for operators, not just demos: per-agent quiet hours and quiet days keep you inside acceptable calling windows, tier-gated retry delays prevent hammering a number, and outcome detection means you're only redialing the calls that actually need it. Everything runs off your existing webhook + n8n flow — there's no new API to integrate and no dialer to babysit. Pricing is freemium: a free tier covers a single agent, and paid Starter, Pro, and Scale plans add multi-workspace and agency-volume capacity. It's purpose-built for Retell today, with Vapi and Bland support on the way. If you run AI voice agents and lose revenue to missed callbacks, redialer.io closes that loop automatically.

redialer.io

Automated callbacks for AI voice & SMS agents.

Automated callbacks for AI voice & SMS agents.