Free Guide · 27 Pages · No Credit Card

Build Your Own AI Receptionist.

The honest 27-page guide to setting up the same Retell + Twilio + Google Calendar stack we use at Futurity247 — every step, every cost, every gotcha. Build it yourself, or decide it's not worth the headache.

Email Me The PDF See What's Inside

Pages, no fluff

Setup sections

Cost to read

A$50

Avg monthly run cost

Live Demo

Talk to the AI receptionist.

Same Retell agent we wire up for clients. Click the button, allow mic access, and ask her about availability, quotes, or after-hours bookings. No signup, runs in your browser.

Ready

Mic only · no recording stored · ~30s to connect

The Guide

Every step, written honestly.

No upsells buried in 200 pages. No "buy the course for the real stuff." The whole build, start to finish — including the parts that suck.

01
What you're actually building
The full pipeline: Twilio → Retell → Google Calendar.
02
Real costs in AUD
Per-minute, monthly, and what to expect month one.
03
Skills and time required
8–15 hours over two weeks. Hour-by-hour breakdown.
04
Retell account setup
Sign-up, billing, the dashboard you'll live in.
05
Building the agent
Voice choice, LLM choice, response settings, and the prompt.
06
Aussie Twilio number
The 1–3 day regulatory bundle nobody warns you about.
07
Google Calendar integration
The Cal.com bridge — where most DIY builds fall apart.
08
The 20-call test protocol
Every scenario to break before going live. Tradie-specific.
09
Going live
Forwarding from Telstra/Optus, port-vs-forward, conditional rules.
10
What can go wrong
The 7 most common failure modes and how to fix them.
11
Ongoing maintenance
What breaks unannounced. Weekly and monthly checklists.
12
+ Prompt template & glossary
Copy-paste system prompt, 5 worked call scenarios, jargon decoder.

Honest Check

Is this for you?

Most lead magnets bullshit you into downloading. This one tells you up front whether to bother.

Read it if

+You enjoy tech and want to actually understand the system
+You have 10–15 hours of focused time over the next 2 weeks
+You're a tinkerer who'd rather build than buy
+You're an agency or reseller pricing this for your own clients
+You want proof an AI receptionist even works before paying for one

Skip it if

−You bill more than $80/hr on the tools — your time costs more
−You need a working system live in 48 hours, not 2 weeks
−You've already missed three calls this week reading this
−You don't want to learn — you want it done

Who Wrote It

Nathan

Founder, Futurity247 · Brisbane, AU

I run Futurity Marketing, a small Brisbane agency, and I built Futurity247 — a done-for-you AI receptionist for Australian electrical contractors — using the exact stack in this guide.

I'm writing it because every "DIY AI receptionist" tutorial online is either an affiliate-link page or a 30-second demo that skips the parts where things break. This is the version I would've wanted when I started — including the 3-day Twilio delay, the calendar token expiry that broke a client's bookings, and the prompt iterations that took Billie from "sounds like a robot" to "sounds like the office".

Read it. Build it if you want. If you decide it's not worth the headache, the offer at the end is the same system, done for you, in 48 hours, for $299 setup — includes a free 30-min setup call to dial it in for your business.

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