Crazytel

Crazytel, Australian VoIP telephony for businesses and homes

Crazytel is an Australian VoIP communications operator that sells SIP trunks, virtual PBX, national and international numbering, SMS messaging, and mobile plans. The company presents itself as fully Australian owned and operated and states that its infrastructure and technology are developed in-house. Its offering is built around telephony products for businesses and for the home, with automatic, instant provisioning and no lock-in contracts.

SIP trunks for PBXs and for the home

The core product for businesses is SIP trunks, designed to connect an on-premise PBX or a softphone. The company advertises plans from $0 per month, instant setup, free porting, and no contracts. Among the technical capabilities it details are endpoint registration, PBX enablement, caller ID, the SIP domain sip.biz.crazytel.net.au, and configuration of systems such as FreePBX, 3CX, or VitalPBX to handle inbound and outbound calls in minutes.

For residential use, Crazytel offers landline phone plans over the NBN with a minimum monthly fee of 50 cents and free CAT-A number porting. The company estimates savings of up to 70% compared to a conventional landline and notes that users can keep their existing number and handset.

CrazyPBX and hybrid trunks

CrazyPBX is the company's cloud-hosted PBX, with plans featuring instant setup, easy scaling, and no lock-in. Hybrid trunks combine traditional SIP connectivity with features typical of a cloud PBX: call hold and transfer, internal calls, three-digit extensions, music on hold, rich forwarding with URI and 302 redirect, on-trunk recording with API access, SRTP and SIPS encryption, web softphone, WebRTC registration with dedicated credentials, additional SIP logins, and a shared LDAP directory. The company describes this product as one of the first of its kind in the world and prices it at a $5 per month trunk fee, with optional recording storage and AI transcription.

Numbering, SMS, and premium features

The catalog includes DID numbers for Australia, New Zealand, and the United Kingdom, Australian and British virtual mobile numbers, 1300/1800 numbering, virtual fax, and international call rates. The SMS platform allows individual or bulk sends, campaign scheduling, real-time webhooks, REST API, opt-out list management, and custom alphanumeric sender ID, with prices from 5 cents per SMS and no monthly fee.

As add-ons, Crazytel sells premium features from $1 per month that can be added to any plan: AI voicemail transcription, SMS and email notifications, auto attendant, ring groups, and assignment of any DID to a mailbox by name without SIP knowledge. Premium voicemail includes an inbox with transcription at 10 cents per minute and SMS alerts at 5 cents per segment.

Global network and connection to AI voice agents

The company describes its network as one of the most resilient in Australia, with active points of presence in six countries: Australia (Sydney, Melbourne, Brisbane, and Perth), New Zealand (Auckland), United States (Los Angeles), India (Mumbai), Philippines (Manila), and Singapore. It reports nine active PoPs, a quadruple redundant core, and automatic failover in under 60 seconds. For CrazyPBX it notes a double redundant network with routing between its Sydney and Melbourne data centers, and for SIP trunk nodes a sextuple redundant network with coverage in Sydney, Melbourne, Brisbane, Perth, New Zealand, and Los Angeles.

AI Bridge is the product that routes numbers managed by Crazytel to leading AI voice platforms, including OpenAI Realtime, Vapi, Retell, and Grok, from $0.0025 per inbound minute, with secure media negotiation via SIPS and without the need for a proprietary SBC. The company also offers a channel partner program and a product recommendation tool to guide customers based on their lines or users.

CrazyPhone softphone and contracting philosophy

CrazyPhone is the free softphone app that Crazytel includes with every extension, available for mobile and desktop, and which allows making and receiving calls with HD audio without the need for physical IP terminals. The company emphasizes that its portals are designed not to require advanced technical knowledge and that its systems can be operated from anywhere, including while traveling internationally. Its sales arguments include the absence of lock-in contracts, instant provisioning of all its systems, and telephone support via 1800 272 998.