Build voice agents that
make and answer real phone calls
A complete platform for building AI-powered phone conversations. Inbound reception, outbound campaigns, instant phone numbers, and a REST API that gives you full control.
Inbound Voice Agents
AI answers your phone calls
Deploy an AI agent that answers inbound calls on your business number. It greets callers, handles enquiries, books appointments, captures leads, and transfers to a human when needed. Runs 24/7, handles concurrent calls.
Capabilities
- Custom voice and personality
- Appointment scheduling via API callbacks
- FAQ handling from your knowledge base
- Smart call transfer (cold and warm)
- Real-time transcript and call recording
- Voicemail fallback
Use Cases
- After-hours reception for trades and services
- Medical practice intake and triage
- Real estate enquiry capture
- Overflow handling during busy periods
- First-line IT helpdesk
Outbound Voice Agents
AI makes phone calls for you
Launch AI-powered outbound calling campaigns. Your agent calls a list of contacts, follows a structured script, handles objections, and logs outcomes — all without human intervention. Voicemail detection included.
Capabilities
- Campaign management via API
- Voicemail detection and message drop
- Mid-call data lookups (CRM, invoices)
- Structured outcome logging
- Concurrent call capacity
- Call recording and transcripts
Use Cases
- Appointment reminders and confirmations
- Customer follow-up and check-ins
- Payment collection reminders
- Survey and feedback collection
- Win-back campaigns for lapsed customers
Phone Numbers
Instant DID provisioning
Provision phone numbers programmatically via the API. Australian geographic, mobile, 1300, 1800, New Zealand, and 60+ international countries. Numbers activate in seconds and can be routed to any voice agent.
Capabilities
- Australian metro and regional numbers
- 1300 and 1800 numbers
- New Zealand numbers
- 60+ international countries
- Instant activation via API
- DID-to-agent routing
Use Cases
- Local presence in any Australian city
- Dedicated numbers per campaign or client
- International inbound for global businesses
- Temporary numbers for events or projects
- Number porting from other carriers
Developer API
Full programmatic control
A REST API that gives you complete control over voice agents, calls, phone numbers, and configurations. API key authentication, multi-tenant isolation, webhook callbacks, and full audit logging.
Capabilities
- REST API with JSON responses
- API key authentication
- Agent CRUD and configuration
- Call creation and status tracking
- Mid-call HTTP tool callbacks
- Webhook notifications
Use Cases
- Integrate voice AI into your SaaS product
- Build a white-label voice AI offering
- Automate call workflows from your backend
- Agency platform managing multiple clients
- Custom dashboards and reporting
How it works
From first API call to live phone conversations in minutes, not months.
Configure your agent
Define your agent's voice, personality, and instructions via the API or dashboard. Set up the prompts, tools, and call handling logic.
Connect a phone number
Provision an Australian, NZ, or international number instantly. Route inbound calls to your agent, or use it for outbound campaigns.
Go live
Your agent handles calls 24/7. Mid-call tools let it look up data, book appointments, transfer calls, and take actions in real time.
Platform capabilities
Everything you need to build production voice AI applications.
Natural voices
Multiple TTS providers — OpenAI, Rime, ElevenLabs. Sounds like a real person, not a robot.
Low latency
Australian infrastructure means sub-300ms response times for AU/NZ callers. No overseas round-trips.
Mid-call tools
Your agent can call your APIs during the conversation — CRM lookups, appointment booking, payment processing.
Data sovereignty
Calls processed on Australian servers. Data stays in AU. Built for healthcare, legal, and finance compliance.
Smart transfers
Cold transfer (SIP REFER) and warm transfer — agent briefs the human before handing over.
Voicemail detection
Outbound agents detect voicemail and leave a message or hang up. No wasted minutes.
24/7 availability
Handles concurrent calls. Never sick, never late. Scales from 1 to 1,000 calls without adding headcount.
Multi-tenant
API key isolation, per-tenant agent configs, audit logging. Built for agencies managing multiple clients.
Australian-built. Priced to compete.
Most Voice AI platforms route your calls through US data centres. That adds latency, compliance risk, and FX exposure. Zivah AI runs on Australian infrastructure owned by a 23-year telco operator — the same network powering hundreds of live business phone systems right now.
Talk to us about pricingReady to build with Voice AI?
Get API access and make your first test call today. Our team can walk you through the platform and help scope your project.