Guide
Missed-call text-back in Australia: what it is, what it costs, and what the law asks of you
A missed call is not a missed call. It is a person with a job and a phone, who is going to ring the next business on Google in about forty seconds. Missed-call text-back is the cheapest thing you can do about that. Here is how it works, the three honest ways to get it, and the compliance bits people skip.
Published 19 August 2026 · Written by Sam O'Leary, OP Digital · Perth, WA
What missed-call text-back actually is
Someone rings your business. You are up a ladder, under a sink, or driving with a trailer on. The phone rings out. Missed-call text-back is a system that notices that call was missed and sends the caller an SMS, from your business, within seconds.
That is the entire idea. There is no app for you to open and nothing for the customer to install. They get a text that says who you are, that you are on a job, and asks what they need. They text back. Now you have their name, their suburb and the job, in writing, and the lead is sitting in your pocket instead of ringing your competitor.
It is worth being precise about what it is not. It does not answer the phone. It does not talk to anyone. It does not quote. It buys you time and it captures a name, and that is all. That sounds modest until you count what a lost call is worth.
Why the speed matters more than the message
The reason this works has nothing to do with clever copywriting. It is speed.
The most-cited research on it is Oldroyd, McElheran and Elkington's “The Short Life of Online Sales Leads” in the Harvard Business Review, March 2011. Its own summary of what it found is blunt: “most companies are not responding nearly fast enough”, and the odds of ever having a real conversation with the person collapse as the delay grows.
Here is the part that is specific to trades. A person ringing an electrician at 7am with no hot water is not shopping. They are triaging. They will ring three numbers off Google in the next five minutes and go with whoever answers or replies first. Being second is the same as being nowhere.
A text that arrives in nine seconds gets read while they are still holding the phone. A callback at lunchtime arrives after they have already booked someone else.
The maths, done properly
Most of the numbers thrown around about missed calls are marketing. Do it with your own figures instead. The model is deliberately simple, and it is the same one behind our missed-call calculator:
Multiply by twelve for the year.
Three inputs, and the third is the one people get wrong. Not every missed call is a job. Some are suppliers, some are wrong numbers, some are people price-shopping who were never going to book. A booking rate somewhere around a quarter to a third of missed calls is a sober starting point. If you know your real number, use that.
Worked through on genuinely conservative figures: ten missed calls a month, an average job worth $400, and 30 per cent of those callers who would have booked. That is 10 × 400 × 0.30 = $1,200 a month, or $14,400 a year, walking out the door.
Those inputs are the calculator's defaults, and they are defaults because they are modest. Ten missed calls a month is roughly one every second working day. Plenty of one-van operations miss that before smoko on a Monday.
Sanity-check it against what you would pay
The test that matters is not the annual figure, it is the monthly one against the cost. At $400 a job, catching a single extra job a month pays for the whole system with change left over. That is a low bar, and it should be. If a system needs you to catch five extra jobs a month to break even, be suspicious of it.
Run your own numbers rather than ours. The calculator is free and takes about a minute, and it does not ask for your email.
The compliance bit: business SMS and the Spam Act 2003
Automated commercial SMS in Australia is governed by the Spam Act 2003, which the Australian Communications and Media Authority administers. It is worth the four minutes it takes to understand.
ACMA's own guidance sets out the obligations in three parts. Get consent first, then make sure every message you send does two things:
- Consent, before anything else. ACMA distinguishes express consent, where someone has actively agreed by filling in a form, ticking a box, or saying so on the phone or in person, from inferred consent, which can apply where someone has knowingly and directly given you their number and it is reasonable to believe they expect to hear from you. Under the Spam Act it is on you to prove you had consent, so keep a record of it.
- Identify yourself as the sender. The message has to say who it is from and carry your contact details.
- Make it easy to unsubscribe. A working opt-out, honoured promptly.
One trap worth naming, because it catches people: ACMA is explicit that you cannot send an electronic message asking for consent. That message is itself a marketing message.
Where a missed-call reply sits
A missed-call text-back is unusual among automated messages in that the recipient started the conversation. They rang you, seconds ago, about a job. That is the textbook shape of inferred consent, and it is why an immediate reply about their enquiry sits very differently to a bulk promotional send to a list you bought.
The practical rules that follow from that:
- Keep the reply about the thing they rang about. The moment it starts advertising an unrelated special, it stops being a reply and starts being marketing, and the consent argument gets much harder.
- Put your business name in the message. Not a mystery number, not just a first name.
- Reply quickly. Inferred consent from an enquiry is not a permanent licence to text someone. Seconds later is a reply. Three weeks later is a campaign.
- Honour opt-outs immediately, and keep a record that you did.
- Do not roll these numbers into a marketing list without asking first.
Three honest ways to get it
There is no single right answer here. There are three routes, and which one suits you depends almost entirely on whether your time is worth more than the money you would save.
1. Build it yourself
Entirely doable. A messaging provider like Twilio gives you a programmable number and an API; something like Zapier or Make can sit in the middle and fire the SMS when a missed call comes through. Per-message costs in Australia are cents, and Twilio publishes its Australian rates openly.
The honest effort estimate is a weekend if you are comfortable with this sort of thing, and considerably longer if you are not. The fiddly parts are not the code. They are getting conditional call forwarding configured correctly with your carrier, deciding what happens when the same person rings four times, keeping a record of who has opted out, and noticing when it quietly stops working. That last one is the real cost. A broken automation you have not noticed is worse than no automation, because you have stopped listening to voicemail.
If you enjoy building things and you have the weekend, genuinely do this. You will understand your own phone system better afterwards.
2. Buy a platform and configure it yourself
A middle route. Plenty of self-serve platforms bundle missed-call text-back with a CRM and a booking calendar. GoHighLevel is the one most Australian agencies build on; various local products wrap similar functionality.
Published pricing in this bracket, where it exists, tends to run from about $100 a month at the entry level to several hundred for anything with real call volume. Sophiie AI, an Australian product in the adjacent AI call-handling space, publishes plans at $99, $299 and $819 a month by call volume, which gives a fair sense of the shape of the market. Many competitors publish no price at all, which is its own signal.
What you are buying is the plumbing. What you still own is the setup, the message wording, the integration with your calendar, and the maintenance. If nobody in the business is going to log in and look after it, you have bought a subscription rather than a system.
3. Have it done for you
What we do. We set up the forwarding, write the messages with you so they sound like you, wire it into the calendar, test it end to end, and keep it running. You do not log into anything.
It comes as part of the loop rather than on its own: the website, the missed-call text-back and the Google review automation together, at $299 a month. First month free, no setup fee, month to month, cancel any time, live in 14 days from your content. That is one price for the whole front end, inside the same range platforms charge for the plumbing on its own, and with nothing for you to configure or maintain.
If you genuinely only want the text-back and nothing around it, one of the two routes above will serve you better and we will say so on the call.
| Build it yourself | Self-serve platform | Done for you (OP Digital) | |
|---|---|---|---|
| Monthly cost | Cents per message plus any automation tool. Often under $20. | Roughly $100 to $400, by volume and features. | $299/mo flat. Includes the website and review automation. |
| Setup cost | Your time. A weekend if you are technical. | Often an onboarding fee, plus your time configuring it. | None. |
| Your time to get live | A weekend, plus the evening it breaks. | A few hours to configure, then ongoing tinkering. | Two short conversations. Live in 14 days from your content, with the site. |
| Who fixes it at 6am | You. | You, with a support ticket open. | Us. |
| Who writes the messages | You. | You, usually from a generic template. | Written with you so it reads like a text from you. |
| Available on its own | Yes. | Yes. | No. It comes with the website and the review automation. |
| Right for | Anyone who enjoys building things and has the weekend. | Anyone with someone in the business who will log in and maintain it. | Anyone who wants the whole front end handled and never wants to log in. |
Platform figures are the published range across self-serve products in this space, checked 19 August 2026. Where a company does not publish a price, this table does not invent one. Our own price is a single number: $299 a month, with no higher rate quoted beside it and no former price implied.
What good looks like, and what to avoid
If you are assessing any of the three routes, these are the things that separate a system that earns its keep from one that quietly annoys people.
- It fires in seconds, not minutes. A text that arrives five minutes later has missed the window entirely. Ours goes at nine seconds.
- It sounds like you.“Thank you for contacting us, your enquiry is important” reads as a machine and gets ignored. “Sorry mate, on a job, what do you need?” gets a reply.
- It never fires on an answered call. Sounds obvious. Get the forwarding logic wrong and customers you just spoke to get a text asking what they need.
- It handles the repeat caller. Someone ringing three times in two minutes should get one text, not three.
- You can turn it off. On holiday, or on a job where you genuinely cannot take work, you need a switch.
- It does not pretend to be a person typing. Do not build a system that fakes a human conversation. Get caught once and you have bought yourself a reputation problem for the sake of nothing.
When text-back is the wrong tool
For most one-van and small-crew operations this is the right first move, and we will say so. Three situations where it is not, so you can rule yourself out in ten seconds rather than find out in month two.
- If most of your callers want to talk right now and will not text, catching them in writing does not help. That is a receptionist problem, not a text-back problem.
- If your call volume is genuinely high, you are not missing calls occasionally, you are structurally understaffed on the phone. A text-back on a hundred missed calls a month is a hundred conversations you now owe someone.
- If you do not answer the texts. This is the one that actually kills it. The system buys you a warm lead in writing. If nobody reads the replies, you have automated the act of ignoring people, and now you have done it in a medium that keeps receipts.
The alternative in the first two cases is an AI receptionist that actually answers the call. That is a bigger spend and a different product. We compare the two here, including where the extra money does and does not earn its keep.
Try it on us before you decide anything
The fastest way to understand this is to be on the receiving end of it. We keep a demo line running for exactly that. Ring it, let it ring out, hang up, and read the text that arrives. Nobody answers it, and nobody rings you back.
If the text lands before you have put the phone down, that is the whole product. The rest of what we do is the website it points at and the reviews it generates.
Common questions
What does missed-call text-back cost in Australia?
Three different numbers, depending on who does the work. Building it yourself on a messaging API costs a few dollars a month in usage plus a weekend of your time and whatever a broken automation costs you later. A self-serve platform is roughly $100 to $400 a month and you configure and maintain it. Done for you, including the website and the review automation, is $299 a month. There is no setup fee on any of our plans.
Is texting someone back after a missed call legal in Australia?
Automated business SMS is covered by the Spam Act 2003, which is administered by ACMA. The rules are consent, identifying your business in the message, and giving people a way to opt out. Someone who has just rung your business is generally treated as having inferred consent to a reply about that enquiry, which is why an immediate reply to a missed call sits differently to a marketing blast. Keep the reply about their enquiry, put your business name in it, honour opt-outs, and you are in the shape the rules describe. This is general information, not legal advice.
Does it work on a landline or a VoIP number?
Yes to both, with a caveat. The system needs to be told a call was missed, and the usual way is conditional call forwarding, which most Australian mobile and VoIP services support. On a plain copper landline the option is often not available from the carrier, in which case the fix is to divert the landline to a mobile or VoIP number that does support it. We check this before we quote, because there is no point selling you something your line cannot do.
What does the customer actually see?
A normal SMS, from your business, arriving seconds after their call rang out. It says who you are, that you are on a job, and asks what they need. It does not announce itself as an automation and it does not pretend to be a live person typing. Most people reply to it the same way they would reply to you.
How long does it take to set up?
The text-back itself is a same-week job once we have your number and your wording. Our full plan, which includes the website, is live in 14 days from the point you send us your content and access. The wording is the part that takes the longest, because it has to sound like you rather than like a call centre.
Does this replace a receptionist?
No, and anyone selling it as a receptionist replacement is overselling it. It catches the call you did not answer and holds the lead until you can call back. It cannot answer questions, quote, or handle someone who wants to talk right now. If you need calls actually answered rather than caught, that is an AI receptionist, which is a different product on a different plan.
Do I have to change my phone number?
No. Nothing ports and nothing changes on your handset. We set up conditional call forwarding on the number you already have, so calls you answer work exactly as they always have and only the ones that ring out trigger anything.
I already use ServiceM8. Will this work with it?
Keep it. None of this replaces your job software, it sits in front of it, so how you run and invoice jobs does not change on day one. If you are on ServiceM8 or something like it, we can wire it in when we set you up, so bookings drop straight into your jobs and the review text goes out when you close the job off. Tell us what you run and we will tell you straight what we can hook into.
What happens if I answer the phone?
Nothing at all. The text only fires on a call that rings out or goes to voicemail. There is no scenario where a customer you just spoke to gets a text asking what they need.
Sources
Every figure on this page came from one of these, checked on the date shown above. Where a company does not publish a price, this page says so rather than guessing one.
- 1ACMA, Avoid sending spam: get consent, identify yourself as sender, make it easy to unsubscribe
- 2Spam Act 2003 (Cth), full text on the Federal Register of Legislation
- 3Oldroyd, McElheran & Elkington, 'The Short Life of Online Sales Leads', Harvard Business Review (March 2011). Paywalled past the abstract
- 4Twilio, programmable messaging pricing for Australia
- 5Sophiie AI published plan pricing, checked 19 August 2026
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Do not take our word for it. Ring the demo line.
Ring 0468 001 644, let it ring out, then hang up. The text you get back is the same one your customers would get. It is a demo line, so nobody will answer.