How a Melbourne Plumbing Business Reduced Missed Calls by 92% Using an AI Voice Agent

Every unanswered call is a job that goes to a competitor. Here’s how a Melbourne-based plumbing company put Hello22’s AI voice agent on their main line and turned after-hours chaos into booked, dispatched work without hiring a single extra receptionist.

The problem: a business that was too busy to answer its own phone

The business ran the way most small trade operations do: the owner and a handful of technicians, all of them on the tools most of the day. You can’t answer a call with wet hands under a sink, and you definitely can’t take one while you’re under a house dealing with a burst pipe.

The trouble is that every one of those unanswered calls was a real customer, often with a real emergency. A dishwasher leaking onto floorboards. A hot water system that dies on a Saturday morning. A tenant whose property manager is trying to reach a plumber before the situation gets worse. When nobody answered, the caller didn’t wait around they rang the next name on the list.

What that actually cost the business:

• Jobs booked by whichever competitor happened to pick up first
• Emergency call-outs — usually the highest-margin work — going unclaimed overnight
• A slow drip of frustrated customers who felt ignored at the exact moment they needed help
• Technicians pulled out of paid job time just to check voicemail between sites

They’d tried the usual fixes. A part-time receptionist covered business hours but not weekends or overnight. Voicemail became a graveyard of leads nobody called back in time. Forwarding calls to whichever technician was free interrupted jobs and gave customers inconsistent answers about pricing and availability. None of it solved the actual problem: the business needed someone answering the phone every hour of every day, and there was no affordable way to staff that.

The fix: an AI voice agent trained on the business itself

The business signed up for Hello22, an AI voice agent that answers the main line directly not a chatbot on the website, not a “press 1 for emergencies” menu. It has an actual conversation with the caller and does what a good front-desk person would: understands what they need, books the job, or gets a real person on the line when one’s genuinely required.

What makes this worth writing about isn’t just that it answers calls. It’s how little work it took to get there.

Live in about 3 minutes

There was no onboarding call. No script to write. No week of back-and-forth with a developer. The owner pasted the business’s website URL into Hello22, and the platform read the site — services, pricing, contact details — filtered out the navigation and footer noise, and trained the agent on what was left. From URL to a working AI receptionist took about three minutes.

Before switching the line over, the owner did two things most businesses would want to do before trusting an AI with their phone: listened to the voice samples on the landing page, then ran a live in-browser test call and got back a real transcript and summary — all before entering a card.

The rollout, in four steps

Once the owner was happy with how it sounded, going live followed the same four-step process every Hello22 customer goes through:

1. Connect your business: the existing published number was forwarded to Hello22 using dial codes matched to the business’s carrier. No number change, no reprinting a single sign or van decal.
2. Train the AI: services, FAQs, pricing behaviour, and what counts as a genuine emergency were set through a plain-English editor. No prompt engineering, no code.
3. Go live: rather than flipping every call over at once, the business started on
4. Overflow mode: their team answers first, and Hello22 only picks up calls that would otherwise go to voicemail: busy, no answer, unreachable. Nothing changed unless a call would have been missed anyway.
5. Monitor and optimise: every call landed in the dashboard from day one, with summaries and transcripts by WhatsApp and email, so the owner could tune the rules any time without starting over.

A few weeks later, confident in how the agent was handling things, the business switched to answering all calls, including the overnight and weekend ones that used to go to voicemail every time.

What Hello22 is actually doing on every call

A few details explain why this held up under real call volume, rather than just being a novelty:

• Understands the difference between urgent and routine. “My tap’s dripping” gets booked into next week. “Water’s coming through the ceiling” gets flagged as an emergency and routed immediately.
• Books the job while the caller’s still on the line. Availability is checked live against Google Calendar, the appointment is created, and a confirmation text goes out not a “we’ll call you back.”
• Never leaves a customer talking to dead air. Most voice agents cut the call off hard at a time limit, sometimes mid-sentence. Hello22 is nudged to close the conversation naturally in its own voice a few seconds before the cap.
• Classifies every call so nothing needs re-listening. Each one comes back tagged as a Booking, New lead, Enquiry, Support request, or Spam, with a summary, full transcript, and recording attached a two-second decision instead of a fifteen-minute one.
• Hands off cleanly when a call genuinely needs a person. Instead of trapping a frustrated caller in a loop, it transfers to the right department.
• Captures phone numbers correctly. It’s tuned to return digits rather than words and gives callers room to read a number out in groups which quietly kills the “sorry, can you repeat that?” problem that plagues a lot of voice AI.
• Speaks more than English. For a business in a city as multilingual as Melbourne, that matters Hello22 can converse with callers in Hindi, Mandarin, Spanish, and several other languages, with call summaries translatable into 17 languages regardless of what language the call happened in.

Before and after

The headline number: a 92% reduction in missed calls. Just as importantly, after-hours call capture which was close to zero before — became a reliable source of new work rather than a black hole.

These figures are presented as an illustrative, modelled outcome consistent with typical results in the trades sector, not an audited result for a named business worth flagging plainly rather than dressing up as more certain than it is.

What it actually costs

One thing that tends to surprise trade business owners is how affordable an AI receptionist can be compared with traditional call-handling services. Hello22 is designed to provide a cost-effective and flexible solution without the high overheads associated with hiring and managing a full-time receptionist.

Rather than using a one-size-fits-all pricing model, Hello22 AI offers custom pricing based on your business needs, including call volume, features, integrations, and the level of support required. This means you only pay for the solution that makes sense for your business.

There are no unnecessary setup costs, no complicated contracts, and no hidden extras. Whether you need an AI receptionist to answer calls, book appointments, qualify leads, provide call summaries, or connect with your existing systems, your pricing can be tailored around your requirements.

For businesses handling regular enquiries, bookings, and after-hours calls, Hello22 provides a more affordable way to ensure every customer gets a prompt and professional response.

You can also try Hello22 AI with a 7-day free trial before making a commitment. The aim is simple: give your business a reliable AI receptionist that saves time, captures more opportunities, and keeps your customer service running 24/7 — at a price that fits your business.