# A voice agent that makes the calls for me

AI galaxy · Cédric Merlin, CTO · https://merlin-cedric.fr/en/ia/leo/

Léo, a hand-built prospecting voice agent, telephony included: it introduces itself as Cédric’s virtual secretary, offers a slot and logs a summary.

## The problem

Calling companies to set up meetings takes whole days.

## What I did

1. **Homemade telephony.** Léo calls from telephony software that I wrote myself (SIP, RTP).
2. **Introduced from the first sentence.** It introduces itself as Cédric’s virtual secretary.
3. **It listens and answers.** It listens, answers and follows up, with about 1.1 seconds of delay.
4. **A slot booked.** It offers a slot, books the meeting and logs a summary of the call.

## The result

A complete voice agent, running on a single computer.

Figure: 1.1 s response delay in conversation.

## Guardrails

Companies only, legal calling hours, a refusal is recorded immediately and they are never called again.

## Listen

Objections, a question about wasted time, then a meeting booked.

Media: Rehearsal against a simulated prospect, 1 min 27 (https://merlin-cedric.fr/leo-extrait.mp3)

## Stack

Python, SIP/RTP, ElevenLabs, LLM, Cal.com, Baserow

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Page: https://merlin-cedric.fr/en/ia/leo/ · Contact: contact@merlin-cedric.fr