๐Ÿ”ฅ Ship your first app in 2 minutes โ€” free Lovable course in CBV Academy
Start Free Course โ†’
Skip to content
codingbutvibes
โ† All challenges
48 hours ยท ~12 hours of focused buildIntermediate

Ship an AI Voice Receptionist in 48h

ElevenLabs voice + Lovable admin + Lindy follow-up. Real numbers, real callers, real bookings.

Deliverable

What you'll have at the end

A live phone number that answers in your cloned voice, qualifies the caller, books the meeting, and emails the transcript before they hang up.

  • โœ“A real, working phone number you can put on your contact page
  • โœ“Calls auto-qualified into hot/warm/cold tiers
  • โœ“Calendly bookings with zero scheduling tag
  • โœ“Email transcripts with summaries in your inbox by Monday morning

The stack

Three tools, one weekend

ElevenLabs

Starter $5/mo (voice cloning + 30 min agent runtime)

Best-in-class voice cloning + Agents that actually hold a phone conversation.

Lovable

Free tier works; Pro $25/mo unlocks Supabase integration.

Spin up the receptionist's admin dashboard in 20 minutes with prompts only.

Lindy

Pro $49/mo for webhook + multi-tool steps.

Glue: takes the call transcript, books on Calendly, sends a tailored recap.

Daily build prompts

The hour-by-hour plan

  1. 01Friday night ยท 2h

    Clone your voice + provision the number

    Sign up for ElevenLabs Starter. Record 5 minutes of clean audio, clone your voice. Provision a Twilio number ($1/mo). Wire the number to a placeholder webhook.

    Use the elevenlabs course as your reference โ†’
  2. 02Saturday morning ยท 3h

    Build the Receptionist Agent

    In the ElevenLabs dashboard, create an Agent with the system prompt from the starter (paste agent-config.json). Test calls from your own phone โ€” iterate on the script until it sounds human.

    Use the elevenlabs course as your reference โ†’
  3. 03Saturday afternoon ยท 3h

    Stand up the admin dashboard in Lovable

    Prompt Lovable: a dashboard with a live calls table (caller ID, time, summary, intent), a settings page for the system prompt, and an export button. Deploy to a *.lovable.dev subdomain.

    Use the lovable course as your reference โ†’
  4. 04Sunday morning ยท 2h

    Wire Lindy as the post-call brain

    Import lindy-closer-bot-starter.json. Point it at your ElevenLabs webhook. Configure Calendly + Gmail. Test: call the number, confirm Lindy books and emails you.

    Use the lindy course as your reference โ†’
  5. 05Sunday afternoon ยท 2h

    Polish + go live

    Tighten the agent prompt with edge cases (caller is angry, caller wants pricing, caller is a vendor). Add a Slack notification. Tweet the number โ€” see if it survives a Sunday-night onslaught.

Honest pitfalls

What trips people up

  • !Clone quality matters โ€” record in a quiet room, single take, no compression.
  • !Twilio rate limits: international callers may need separate numbers.
  • !Don't ship without a 'transfer to human' fallback for confused callers.

Submit your build

Done? Drop the link.

We'll feature the best 3 builds in next week's Builder Drip with your link credited.