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Library/ Voice Agents/ Module 5 · Project 4: Production Voice-Agent Platform (your own 'mini-Vapi')/ 5.4 Campaign engine

subtopic

Queue, concurrency, calling windows and retries

10 min applied10 min research1 curated resources

Build the outbound engine: a job queue of contacts; workers that start calls while respecting each client's concurrency limit, calling window and time zone, DND/consent flags and maximum attempts; schedule retries from call outcomes; pause a campaign instantly.

Builds on: Module 3 · Project 2: Outbound Calling Agent on Vapi (reminders and lead qualification), 3.6 Run it reliably

Notes, key code, what to skip and 1 curated resources are inside the platform.Join the waitlist and we'll build you a roadmap that includes this topic only if your goal needs it.

Queue, concurrency, calling windows and retries · 1x1labs.ai