The short answer
A Twilio integration puts messaging and calling inside your own application, so reminders, alerts, verification codes and call routing run off your data instead of someone's phone. AR Digital Solutions builds it for Australian businesses, including opt out handling, delivery tracking and sender setup.
What a Twilio build usually covers
- SMS sending off your own events, using data you already hold.
- Two way messaging, with replies routed to a person or a workflow.
- Opt out capture, applied across every system that can send.
- Delivery status stored per message, with alerting on failures.
- Programmable voice: routing, transfers and recording.
- Verification codes with rate limits and destination restrictions.
Australian SMS has rules, and this is where most builds go wrong
Sender IDs decide whether anyone can reply
An alphanumeric sender ID puts your business name in the from field and makes the message one way. Nothing sits behind it to receive a reply, and for a service business the reply is where the value is. If you want a conversation, send from a mobile number and keep the same one. Australia has also been tightening up on alphanumeric sender IDs, so check the current requirement rather than assuming your name will pass.
Opt out is the law, not a courtesy
Under the Spam Act, a commercial electronic message needs consent, clear identification of the sender and a working unsubscribe, honoured promptly. SMS counts. The opt out has to be processed automatically against the contact record, not forwarded to someone in the office, and it belongs on that record rather than in one platform, because the second system that can send is the one that gets you in trouble. An alphanumeric sender also makes "reply STOP" impossible, so the opt out becomes a link in the message.
What a delivered status actually tells you
Twilio reports queued, sent, delivered, undelivered and failed. Delivered means a carrier acknowledged the handset received it, not that anyone read it, and receipt quality varies by route. A missing receipt is not proof of failure and a delivered one is not proof of success. Store every callback, alert when the undelivered rate moves, and when a job depends on the customer seeing it, wait for a reply.
SMS and WhatsApp cost differently for the same words
SMS bills per segment: 160 characters on the standard alphabet, 153 per part once a message splits, and 70 if you include one character outside it. An emoji does that, and so does a curly apostrophe pasted out of Word, which is how a one part reminder quietly becomes three. WhatsApp bills by conversation, so length is free and a back and forth stays one charge. That makes WhatsApp cheaper per resolved enquiry, while SMS still wins for a code to someone who may not have the app.
Voice and verification, where the same build usually ends up
Programmable voice means your application answers the call and tells the network what to do next, so routing can use what you already know: whose account it is, whether a job is open, who is on call tonight. A static menu can't. If the phone system itself is the problem, that sits with our cloud PBX and VoIP team.
Recording needs consent, governed in Australia by state surveillance devices law as well as telco rules. The announcement at the start is not decoration, and the recording is personal information the moment it exists.
For verification, use a purpose built flow rather than your own: codes that expire, rate limits per number and per IP, destinations restricted to countries you serve. Open signup forms get targeted by traffic pumping, and the first sign is the bill.
How the build runs
We map the messages
What the system sends, to whom, and what happens on a reply.
Scope and price
Fixed scope, fixed number, dates in writing.
Build and test
Sender setup, opt out logic and call flows, tested on real handsets.
Launch and watch
Delivery and failure rates monitored, with alerts that reach a person.
Who this suits, and who it doesn't
It suits businesses whose software already knows something worth telling a customer: a booking, a dispatch, an overdue invoice.
It doesn't suit anyone wanting to blast a bought list. We won't build that.
Why build it with us
Real developers, not a plugin bolted to a form.
The sending logic lives in your application and runs on your rules.
You own the account.
Your Twilio account, numbers, message logs and code.
No lock in contracts.
Month to month on retainers, fixed scope on projects.
"We already send texts from a phone."
Plenty do, until that person leaves and takes the conversation history with them.