Recruitment telephony platform

Case study · Recruitment agency · Europe · Jul 2026 · in production

Thousands of candidates, too few people to call them.

An automatic dialler on the agency's own SIM lines. Candidates press 1 to reach a consultant, no-answers get retried, and anyone who opts out is never called again.

Results

  • 22,000+ calls in the first two weeks
  • 16 calls at once across 3 gateways
  • 4 build phases, from dialler to multi-gateway

How it works, step by step

  1. Candidates: People who fit the job; anyone who opted out is skipped
  2. Scheduler: Picks who to call next, only in calling hours, never twice at once
  3. Phone system: Plays the recorded job message, listens for a key press
  4. SIM lines: Three SIM gateways ring candidates in parallel
  5. Consultant: Interested? Put straight through to a recruiter
  6. Result: Answer saved; unanswered calls marked for a retry

Delivered for this client

  • Automatic calling system (Automation): 22,000+ calls in two weeks, with live transfer to consultants
  • Job campaigns with AI voice (AI): Candidates matched to vacancies; each campaign opens with its own AI-made message
  • Callbacks and routing (Automation): Candidates who call back reach the right consultant

Role and stack

Designed, built and ran it, end to end. Built with n8n, Asterisk / FreePBX, PostgreSQL, Python, PHP, Docker.

Built by Usama Ali, a GTM & AI Automation Engineer who designs, builds and runs end-to-end systems for sales and operations. Get in touch.

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