Executive summary
Human call centers still work but carry turnover, unmanageable peaks and rising cost. When to put an AI voice agent in front — or replace it.
For years, the default answer when a Spanish company grew was to outsource phone handling to a call center. It works, but it drags turnover, constant training, peaks you cannot cover and a cost that grows with every new agent. In 2026 many of those contracts are being rethought with an AI voice agent in front.
The hybrid model we see most in 2026
Most teams do not shut the call center down: they put the AI voice agent as the first line and keep the human team for the cases the agent flags as complex. Typical result: 60-80% of calls resolved without a human, better KPIs on what does reach the team, and cost per contact going down.
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Written by
José María Lozano is CEO and co-founder of IACall, a Spanish company building AI voice agents that answer phone calls in real time. He works mainly with law firms, accountancy practices, property managers, estate agents, clinics and workshops: businesses where a missed call is a missed opportunity. IACall operates in Spanish, Catalan and Galician, with data hosted in the EU and compliance with GDPR and the EU AI Act.