At a glance: The best AI voice agents for sales calls in Australia in 2026 are Zian AI for autonomous, multi-channel outbound that treats a phone call as one step in a sequenced campaign; Curious Thing and Heya for Australian-built platforms with local roots and onshore data options; and Retell AI, Vapi or Synthflow if you want to build and run your own production phone agents. Whichever you choose, it must operate inside ACMA’s telemarketing calling-hours rules, the Do Not Call Register and the Spam Act 2003 — so we weighted Australian compliance readiness heavily in this list.

Australia is a distinctive market for AI calling: strict federal telemarketing rules, time zones up to three hours apart in summer, an audience that picks accents instantly, and — from 1 July 2026 — a mandatory SMS Sender ID Register for branded text follow-ups. A platform that performs beautifully in a US demo can still get you an ACMA infringement notice here. This guide ranks nine platforms through that Australian lens. For a global view of the same category, see our best AI voice agents for outbound calls in 2026 round-up.

The best AI voice agents for Australian sales teams in 2026

1. Zian AI — best overall for autonomous multi-channel sales outreach

What it is: Zian AI is an autonomous AI sales agents platform — AI agents trained for profits, not just prompts — currently in waitlist beta with partnership applications open. Rather than a single dialler bot, you deploy a digital team: an Outbound Appointment Setter, a Sales Call Closer, an Appointment Show-Specialist and a 24/7 Customer Support Agent that operates in 30+ languages.

Why it suits Australia: SmartReach AI™ orchestrates message, channel and timing by country, industry and profile with intelligent follow-up pacing — exactly the kind of timing logic Australian teams need when a lead in Perth can be up to three hours behind one in Sydney and ACMA restricts when telemarketing calls may be made. Outreach spans live phone, SMS, email and WhatsApp, with voice cloning supported, research and knowledge-base lookups, and API and CRM integrations for HubSpot, Salesforce, HighLevel and Zapier. For organisations with data-residency requirements, Zian supports private model deployment on your own infrastructure — which Australian buyers can host onshore.

Verified differentiator: PrecisionPitch AI™ continuously split-tests scripts and approaches optimised for real success outcomes — booked meetings and closed deals, not vanity connect rates. Across the platform, AI books 40+ meetings/week for many teams, and multi-channel sequencing has driven a 2,736% increase in lead contact rates.

Best for: Australian sales teams that want the whole outbound motion — call, follow-up, reschedule, show-up — run autonomously, rather than a voice API they must assemble themselves. If you are weighing this build-vs-buy question, our comparison of AI voice agents vs call centres covers the economics in detail. Plans are named Intel + Widgets (Free Forever), More Leads & More Intel, and GodMode Max Profits.

Apply For Partnership — Zian AI is in waitlist beta and onboards new partners by application.

2. Curious Thing — best Australian-founded voice AI for proactive engagement

What it is: Curious Thing, founded in Sydney and now part of MaxContact, describes itself as “a conversational Voice AI solution for proactive engagement” with results across healthcare, financial services and e-commerce.

AU-relevant notes: Local heritage matters here — the team grew up building for Australian callers and Australian businesses, and the platform offers a dedicated outbound voice AI product alongside inbound engagement.

Verified differentiator: Curious Thing states it has “processed over 3 million minutes of AI-human conversations”, and that it is ISO 27001 certified as well as SOC 2, GDPR and HIPAA compliant.

Best for: Australian mid-market and enterprise teams that want a locally rooted vendor for proactive customer outreach and engagement calls.

3. Heya — best for Australian data sovereignty

What it is: Heya is an Australian AI automation platform — “Australian-made. Australian-owned. Australian data.” — operated by Heya Enterprises Pty Ltd and owned by its Australian founders. It deploys AI digital workers across voice, SMS, email and WhatsApp, coordinated by its Cordi orchestration system.

AU-relevant notes: Customer data is hosted in Australian data centres, with sovereign deployment available for regulated organisations — a genuine advantage for government-adjacent, legal, insurance and healthcare buyers who cannot send call data offshore.

Verified differentiator: Full Australian ownership and onshore data residency as the default, not an enterprise add-on.

Best for: Regulated Australian organisations where data sovereignty is the first question in procurement, not the last.

4. Retell AI — best for running production phone agents at scale

What it is: Retell AI positions itself as an AI voice agent platform for automating phone calls, with a claimed “~600ms latency”, a proprietary turn-taking model, streaming RAG for knowledge bases, and batch calling campaigns “without concurrency limits”.

AU-relevant notes: Retell is a US-based platform; Australian buyers should confirm where call data is processed and apply Privacy Act cross-border disclosure diligence. Calling-hours enforcement for ACMA windows is your configuration responsibility.

Verified differentiator: HIPAA, SOC 2 Type II and GDPR compliance with personal-information redaction and enterprise on-premise deployment options.

Best for: Operations teams that want dashboards, monitoring and batch campaign tooling around production phone agents.

5. Vapi — best developer platform for custom voice agents

What it is: Vapi is an “API-first by design” developer platform for building voice AI agents, claiming “1 Billion calls supported” and sub-500ms average latency.

AU-relevant notes: Because you control the stack, you can bring your own SIP trunk or carrier for +61 number provisioning and build AEST/AWST calling-hours guardrails directly into your agent logic — but you have to build them; nothing ships ACMA-aware out of the box.

Verified differentiator: SOC 2, HIPAA and PCI compliance with SSO, OAuth and role-based access controls on a fully programmable platform.

Best for: Australian engineering teams building bespoke voice experiences who want maximum control and accept maximum responsibility.

6. Synthflow — best no-code builder with in-house telephony

What it is: Synthflow calls itself “the only end-to-end Voice AI platform with in-house telephony”, pairing a visual no-code flow designer with a white-label programme for agencies.

AU-relevant notes: In-house telephony plus the freedom to connect your own carriers or SIP trunks gives Australian teams a path to local numbers; regional deployment capability is worth probing in procurement for data-residency needs.

Verified differentiator: Synthflow reports 65M+ customer calls handled, with SOC 2, HIPAA, PCI DSS and GDPR certifications and a pay-as-you-go pricing model.

Best for: Non-technical Australian teams and agencies that want to launch agents from templates without writing code.

7. Bland — best for enterprises that want to own the stack

What it is: Bland is an enterprise voice AI platform whose pitch is infrastructure ownership: self-hosted deployment “running entirely on your own infrastructure for maximum security”, so “your data never goes through third parties”.

AU-relevant notes: Bland lists US, EU and APAC deployment region options — one of the few global vendors that acknowledges this side of the Pacific in its architecture — and self-hosting can satisfy strict Australian data-control policies.

Verified differentiator: Support for 40+ languages with real-time translation in 23, SOC 2 Type II, HIPAA and PCI DSS v4.0 certification, and transparent per-minute billing covering the model, transcription, speech and telephony layers.

Best for: Australian enterprises with security teams that insist on controlling where every call packet lives.

8. ElevenLabs Agents — best voice quality and language coverage

What it is: ElevenLabs Agents brings the company’s speech technology to conversational agents across “phone, web, WhatsApp, SMS, and email”, with 70+ languages and a library of 11k+ voices.

AU-relevant notes: The breadth of the voice library makes it one of the strongest options for natural Australian-accented agents, and the platform offers regional data residency and a zero-retention mode. If you plan to clone a real person’s voice for business calls, read our guide to voice cloning compliance for business calls first — consent and disclosure rules apply.

Verified differentiator: SOC 2 Type II, ISO 27001, ISO 42001, HIPAA and PCI DSS Level 1 certifications — one of the deepest compliance stacks in the category.

Best for: Teams for whom voice naturalness and multilingual reach are the deciding factors.

9. Aloware — best CRM-native contact centre with AI calling

What it is: Aloware is a cloud contact-centre platform — “your compliant, AI-powered phone system for crushing speed to lead” — combining a power dialler, business SMS, conversation intelligence and 24/7 AI voice agents.

AU-relevant notes: Its native CRM integrations (HubSpot, Salesforce, Zoho, Pipedrive) let reps call and text inside the CRM with real-time syncing. Note that its built-in compliance tooling (A2P 10DLC, STIR/SHAKEN, CNAM) is US-centric — Australian teams still need to manage Do Not Call washing and ACMA calling hours themselves.

Verified differentiator: A hybrid human-plus-AI model: the same platform runs your human reps’ dialler and your AI agents, which suits teams transitioning gradually.

Best for: Australian sales teams that live in their CRM and want AI to augment, not replace, human callers.

Comparison table

Platform	Best for	AU-relevant capability
Zian AI	Autonomous multi-channel outbound (waitlist beta)	Timing orchestration by country; private model deployment hostable onshore; 30+ languages
Curious Thing	Proactive engagement, AU heritage	Sydney-founded voice AI; outbound product; ISO 27001
Heya	Data sovereignty	Australian-owned; data hosted in Australian data centres; sovereign deployment
Retell AI	Production phone agents	Batch campaigns; on-premise option for data control
Vapi	Developer builds	Bring-your-own SIP/carrier for +61 numbers; custom calling-hours logic
Synthflow	No-code teams and agencies	In-house telephony; connect your own carriers or SIP trunks
Bland	Enterprise self-hosting	APAC deployment region option; self-hosted data control
ElevenLabs Agents	Voice quality and languages	11k+ voices for Australian accents; regional data residency
Aloware	CRM-native hybrid calling	In-CRM calling/SMS; compliance tooling is US-centric — plan ACMA controls separately

How we chose (methodology)

Full disclosure first: Zian AI is our platform, and it holds the top spot — but every other entry was assessed on the same criteria, and each vendor’s capabilities were verified against its own live website during research for this article. We evaluated:

• Australian compliance readiness — how much work it takes to operate the platform within ACMA calling-hours rules, the Do Not Call Register and the Spam Act 2003 for message follow-ups.
• Data residency options — onshore hosting, regional deployment, self-hosting or private deployment paths for Australian data.
• Local calling readiness — paths to +61 number provisioning (native telephony, BYO carrier or SIP) and timing logic that can respect AEST/AWST windows.
• Voice quality for Australian audiences — accent and language coverage, since Australian prospects punish robotic or mis-accented callers with instant hang-ups.
• Sales outcomes focus — whether the platform optimises for booked meetings and revenue rather than call-volume vanity metrics.

We excluded platforms whose sites we could not verify as live AI voice-agent offerings at the time of writing. Vendor claims quoted in each entry come from that vendor’s own website; regulatory statements are cited to the ACMA and Australian Government sources linked in the compliance section below.

Australian compliance: the rules your AI caller must follow

Before any platform dials an Australian number on your behalf, three federal regimes apply.

Do Not Call Register Act 2006

Unsolicited telemarketing calls must not be made to numbers on the Do Not Call Register without consent. Telemarketers create an industry account and wash their calling lists against the register before campaigns. The ACMA actively enforces this — its recent actions include six-figure infringement notices for combined spam and telemarketing breaches.

Calling hours under the Telemarketing and Research Calls Industry Standard

The ACMA’s rules for telemarketers set permitted windows: telemarketing calls may be made 9am to 8pm Monday to Friday and 9am to 5pm on Saturdays; Sunday telemarketing calls are not allowed, and telemarketers must not call on national public holidays. Those hours apply in the recipient’s local time zone — which is why AEST/AWST-aware scheduling is a ranking criterion in this list, not a nice-to-have.

Spam Act 2003 — for SMS and email follow-ups

Most AI voice campaigns follow up by SMS or email, and that is where the Spam Act 2003 and the Spam Regulations apply. The ACMA’s guidance on avoiding sending spam is built on three obligations: get consent before sending commercial electronic messages, identify yourself as the sender, and make it easy to unsubscribe. Our broader guide to AI outreach compliance walks through how to structure consent capture for multi-channel sequences.

SMS Sender ID Register — live from 1 July 2026

New for 2026: under the ACMA’s SMS Sender ID Register, from 1 July 2026 texts sent with an organisation’s name at the top of the message (a branded sender ID) need to have that sender ID registered — and the ACMA notes that SMS sent using unregistered sender IDs are now being labelled as “Unverified”. If your AI agent sends branded SMS follow-ups after calls, register your sender ID or your messages will carry that warning label.

Apply For Partnership to see how Zian’s timing orchestration and follow-up pacing give your team the timing controls for multi-channel sequences that must operate within rules like these.

FAQ

Is it legal to use AI voice agents for sales calls in Australia?

Yes, provided you follow the same rules that apply to human telemarketers: wash your lists against the Do Not Call Register, call only within permitted hours, identify who is calling and why, and end the call if the person asks. The obligations sit with your business regardless of whether a human or an AI places the call.

What hours can telemarketing calls be made in Australia?

According to the ACMA’s rules for telemarketers, telemarketing calls are permitted 9am to 8pm Monday to Friday and 9am to 5pm on Saturdays. Telemarketing calls are not allowed on Sundays, and telemarketers must not call on national public holidays.

Does the Spam Act 2003 apply to AI voice calls?

The Spam Act 2003 governs commercial electronic messages such as email and SMS rather than voice calls, which fall under the Do Not Call Register framework. But because most AI calling campaigns send SMS or email follow-ups, your sequences still need Spam Act consent, sender identification and a working unsubscribe.

What is the SMS Sender ID Register and does it affect AI sales campaigns?

It is an ACMA register for branded SMS sender IDs. From 1 July 2026, texts sent with an organisation’s name at the top of the message need that sender ID registered, and SMS sent using unregistered sender IDs are being labelled as “Unverified”. If your AI agent texts prospects under your brand name, registration protects your deliverability and trust.

Can AI voice agents sound genuinely Australian?

Yes. Platforms with large voice libraries or voice cloning can field natural Australian-accented agents, and accent quality was one of our ranking criteria. If you clone a real person’s voice, obtain documented consent and disclose appropriately before using it on business calls.

Do I need consent before an AI agent cold-calls a business number?

The Do Not Call Register is for numbers used primarily for private or domestic purposes, and a number mainly used for business calls is less likely to be eligible for registration. Even so, wash every list against the register before calling, because plenty of numbers serve both purposes — sole traders and professionals often register them. Washing is inexpensive; infringement notices are not.

Choosing your Australian AI calling stack

If you want infrastructure and are ready to build, Vapi, Retell AI and Bland give you the control. If you want Australian roots and onshore data, Curious Thing and Heya deserve a serious look. And if you want the entire outbound motion — research, call, follow-up across SMS, email and WhatsApp, reschedules and show-up chasing — run autonomously by a digital team that split-tests its own pitch, that is what Zian AI was built for. Zian is in waitlist beta with partnership applications open: Apply For Partnership and we’ll organise a walkthrough of the digital team against your current pipeline.