Critical Information Summary
1300 229 638 · caznet.com.au
Issued April 2026
| Service | Monthly charge (inc GST) | Concurrent calls | Included DID number | Minimum term | Early termination charge | Minimum total cost (inc GST) |
|---|---|---|---|---|---|---|
| SIP Voice Line | $34.95 per channel | 1 per channel | 1 AU DID per channel | 1 month | $0 | $34.95 per channel |
About this service
Caznet SIP Trunks are carrier-grade virtual voice lines delivered over the internet, hosted on Caznet's voice platform in Adelaide. SIP trunks connect any SIP-compatible phone system to the public telephone network. Intended for business use only. Not suitable for residential use or high-volume call centre applications.
What you need
A SIP-compatible phone system is required (on-premise PBX, cloud PBX or SIP gateway). A broadband internet connection is required — each concurrent call channel uses approximately 100 Kbps of bandwidth. Caznet can advise on compatibility before you order.
Availability
Available to businesses Australia-wide with a compatible internet connection and SIP-capable phone system. There are no geographic restrictions on the service itself — channels are activated remotely. Configuration assistance is available from Caznet's Adelaide-based team.
Charges
- Monthly: $34.95 per channel (inc GST)
- Local, national, mobile, 13/1300/1800 calls: included
- International calls: per Caznet rate card — contact us
- Additional AU DID number: $1.00/number/month (inc GST)
- NZ DID number: POA
- Number porting — first batch: $0 (free)
- Number porting — subsequent batches: $250 per batch
Billing
Billed monthly in advance on the 1st of each month for that calendar month. New services are billed from the service start date to the end of that month, then monthly thereafter. Channels can be added or removed at any time — adjustments are reflected on the next bill.
Payment
Direct debit, credit card, or EFT. Payment details are shown at the bottom of your invoice.
Included call rates
| Call type | Rate |
|---|---|
| Local | Included |
| National | Included |
| Mobile | Included |
| 13 / 1300 / 1800 | Included |
| International | Per rate card — contact Caznet |
Optional add-ons
Additional channels (ordered as needed, same per-channel pricing); additional AU DID numbers ($1.00/month each); NZ DID numbers (POA); international call access (per rate card).
Bundling
Not required. SIP trunks connect to your existing phone system, independent of your internet provider. Caznet recommends pairing with a Caznet business internet plan for best results and single-provider support.
Qualifications — when service may be restricted or cancelled
Caznet may suspend or cancel this service if you: fail to pay your account; breach our Acceptable Use Policy or service agreement; use the service for call centre, telemarketing or auto-dialling purposes; engage in abusive conduct toward staff; or as required by law.
Changes to plan or pricing
If Caznet makes a materially detrimental change to your plan or pricing, you will receive at least 30 days' written notice and may cancel without penalty before the change takes effect.
Customer service & complaints
Phone 1300 229 638 · Email caznet@caznet.com.au · Complaints: caznet.com.au/about/legal/complaints
If you are not satisfied with our response, you can contact the Telecommunications Industry Ombudsman (TIO): 1800 062 058 · tio.com.au (free, independent)
Full terms & related documents
Standard Form of Agreement · Acceptable Use Policy · Privacy Policy · Financial Hardship Policy · caznet.com.au/about/legal