How It Works

Phone rings. Job appears. Tech rolls.

No magic. Just a clean pipeline of well-known tools wired together. Here’s every component, what it does, and why we picked it.

The 7-second flow

  1. 1

    Customer dials your business number

    0 ms

    They use your normal published phone number. You forward it to your dedicated BeMyCrew Twilio line via *21* on most carriers.

  2. 2

    Twilio receives the call

    +200 ms

    Twilio is the underlying telecom carrier. It hits our /api/voice/inbound webhook with the caller ID and TwiML.

  3. 3

    BeMyCrew greets the caller

    +800 ms

    ElevenLabs synthesizes your custom greeting in your selected voice (Rachel, Adam, Daniel, Charlotte, etc.) and Twilio plays it.

  4. 4

    AI conversation

    +2-30 sec

    Claude (Anthropic) drives a natural conversation through the script: name, address, issue, urgency. Detects emergencies with a keyword + intent classifier.

  5. 5

    Job appears on the dispatch board

    +3 sec after hangup

    Firestore writes the new job. The dispatcher’s Next.js app subscribes to the collection via onSnapshot and renders the card live.

  6. 6

    Smart dispatch matches a tech

    +5 sec

    Claude scores each available technician by skill, location, and current workload. The top match gets a one-tap suggestion.

  7. 7

    Tech gets the job in their pocket

    instant

    The technician’s mobile PWA receives the job via Firestore, plus an SMS via Twilio with directions, customer name, and the issue.

The actual stack

Telephony

Twilio

Numbers, voice webhooks, SMS.

AI conversation

Anthropic Claude

The model that drives the call script.

Voice synthesis

ElevenLabs

Natural-sounding voices that don’t feel robotic.

Database

Firebase Firestore

Realtime sync for dispatch board and tech portal.

Auth

Firebase Auth

Email/password, Google, anonymous — standard, free.

Hosting

Vercel

Next.js app hosted on Vercel’s edge network.

Frontend framework

Next.js 14 + React

App Router, RSC, server actions — industry standard.

Styling

Tailwind CSS

Fast iteration, no design system overhead.

Maps

Leaflet + Mapbox tiles

Free, open source, good enough for dispatch.

Email

Resend

Transactional email — booking confirmations, receipts.

Payments

Stripe

Optional. Only if you accept card payments from customers.

License

MIT

Use it, fork it, ship it. We don’t care.

Why it’s $5-15/mo and not $500

Field service software like ServiceTitan charges $400-500/month per seat. They built their own data center, sales team, marketing team, customer success team, and shareholder returns into the price.

BeMyCrew is open source. There’s no sales team, no per-seat license, no shareholder margin. The actual cost of running an AI receptionist for a small shop is <$15/mo: Twilio number ($1), call minutes ($2-5), ElevenLabs voice ($5-9). That’s it.

You pay those providers directly. We don’t see your card. We don’t mark anything up. That’s the entire pricing model.

Ready to wire it up?

Setup is 90 seconds. No credit card.

Set Up Voice AgentWatch Live Demo