← AICédric MerlinFREN

AI galaxy Case 4 of 8

A voice agent that makes the calls for me

Proof

Rehearsal against a simulated prospect, 1 min 27

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

Recorded callCall in progress
  • LéoVoice agent
  • ProspectSimulated

Audio in French, live English transcript

Transcript

  1. Prospect

    Hello?

  2. Léo

    Hello. This is Léo, Cédric Merlin's virtual secretary at M‑KIS.

  3. Léo

    I'm trying to reach Mr Durand. Is that you?

  4. Prospect

    Yes, it's me. Listen, I really don't have time right now.

  5. Léo

    I understand. I hear that a lot.

  6. Léo

    I'll only take 30 seconds.

  7. Léo

    Cédric wrote to you last week about how you manage your quotes and your stock.

  8. Léo

    I wanted to see whether that speaks to you.

  9. Prospect

    We already have software. It works very well.

  10. Léo

    Good. Does it do everything, or is there still work you do on the side, in Excel or on paper?

  11. Prospect

    Well, it's true that we redo the delivery notes by hand.

  12. Prospect

    But your thing must cost a fortune.

  13. Léo

    It really depends on what you need.

  14. Léo

    And Cédric would rather give you a fair figure than a guess.

  15. Léo

    That's what the meeting is for, and it doesn't commit you to anything.

  16. Léo

    Would you prefer the start or the end of the week?

  17. Prospect

    Just send me some documentation instead.

  18. Léo

    Happy to. So that it's actually useful to you,

  19. Léo

    what takes up the most time today with those delivery notes?

  20. Prospect

    All right, fine, 15 minutes, Thursday afternoon then.

  21. Léo

    Perfect. I'll find you a slot on Thursday afternoon.

  22. Prospect

    2:30 pm works for me. It's durant-exemple.fr.

  23. Léo

    Perfect. Thursday 1 October at 2:30 pm.

  24. Léo

    I'm confirming your email, durant-exemple.fr. Is that right?

  25. Prospect

    That's right. Thank you, goodbye.

  26. Léo

    Thank you, Mr Durand.

  27. Léo

    See you Thursday. Meeting confirmed for Thursday 1 October at 2:30 pm.

  28. Léo

    The invitation is on its way to your inbox.

The problem

Calling companies to set up meetings takes whole days.

What I did

01

Homemade telephony

Léo calls from telephony software that I wrote myself (SIP, RTP).

02

Introduced from the first sentence

It introduces itself as Cédric’s virtual secretary.

03

It listens and answers

It listens, answers and follows up, with about 1.1 seconds of delay.

04

A slot booked

It offers a slot, books the meeting and logs a summary of the call.

Diagram: a phone call, a conversation, a booked slotA phone connected to Léo by a SIP and RTP link. Léo first introduces itself as Cédric’s virtual secretary, then the conversation alternates between the prospect and Léo, with a delay of about 1.1 seconds. A slot fills in a calendar and a table row receives the summary of the call.SIP · RTPLéoVirtual secretary≈ 1.1 s

The result

A complete voice agent, running on a single computer.

1.1 s

response delay in conversation

Guardrails

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

Stack

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