Business SIP

PAYG or Unlimited Calls
Works with nbn™
Business Grade
HD Quality

Business SIP uses industry standard cutting-edge technology, ensuring your calls have high-definition clarity.

Highly Scalable

Business SIP grows with your business. Connect now and then scale up as required.

Automatic Failover

With Automatic Failover, never miss a call if your office goes offline.

Fully Compatible

Business SIP works with your current phone system, including: 3CX, Asterisk, Avaya, LG Aria, LG iPECS, NEC, Panasonic, Samsung and more!


SIP Unlimited

1 x SIP Line +
Unlimited Call Pack

Call Rates

Local Calls: Included
National Calls: Included
Calls to AU Mobiles: Included
Calls to 13/1300 Numbers: $0.33c per call

Minimum cost over 36 months: $1764

SIP 10/20/30 Unlimited

10 x SIP Lines +
Unlimited Call Pack

Call Rates

Local Calls: Included
National Calls: Included
Calls to AU Mobiles: Included
Calls to 13/1300 Numbers: $0.33c per call

Minimum cost over 24 months: $10,776

*Price is per channel, with 1 minimum channel required.

Business SIP is here

Here’s what you’ll get with Business SIP:

  • The ideal replacement for traditional landlines/ISDN
  • A single service provides voice to one or more handsets
  • Each service can support multiple numbers
  • A highly versatile service that works with the nbn™

What can Business SIP do?

Suitable for any business, Business SIP is extremely easy to setup and configure. The service is scalable, allowing you to add lines to reflect your ongoing business requirements.

Business SIP also supports the following features at no extra cost:

  • Line Hunt
  • Call Forwarding
  • Call ID Blocking
  • Message Bank
  • Voicemail to Email


Telair Business SIP integrates seamlessly with all major IP phone platforms. Telair can optionally supply a device to connect your legacy phone system, extending the life of your existing investment.
Things you should know...
General Terms

1. Business SIP (the Service) is an Internet telephony service delivered over a broadband Internet connection (not included), such as ADSL 2+, nbn™ or Copper/Fibre/Wireless Ethernet, charged at your applicable Internet plan rates. An Internet connection with a minimum of 100/100Kbps of available bandwidth per simultaneous call, with no packet loss, and a ping of less than 150 ms is required for the Service to work. The Service may not be supported by us should the underlying Internet connection not meet these minimum requirements. Data transmission demands on your network may cause the bandwidth available for voice transmission to be limited if voice and data share the same connection. The quality of the Service is subject to network and Internet congestion.

2. We recommend that the Service be accessed using a broadband ADSL 2+, nbn™ or Ethernet service supplied by us to our specifications.

3. The Service includes one Direct Indial (DID) Number. Additional DID numbers can be purchased singularly or in blocks of 10 or 100 numbers.

4. Porting charge applies for customers wishing to retain their existing phone number, priced on application.

5. Standard Call types included in Business SIP Unlimited Plans: Local Calls, National Calls, and Calls to Australian Mobiles. All other call types, such as (but not limited to) calls to 13/1300 numbers, international numbers, premium numbers and directory assistance, are excluded from Business SIP Unlimited Plans. Excluded calls are charged in addition to the Monthly Access Fee. Timed calls are billed in 30 second increments. International Calls are billed in 60 second increments.

6. Your fax machine, EFTPOS, back to base alarm and other non-standard services may work over Telair’s IP Voice network, however we cannot guarantee that these services will function faultlessly. Please contact your manufacturer/provider to check compatibility with Business SIP.

7. Early Termination Fee: if you choose to cancel your service or it is disconnected for any reason within the minimum contract term, you will be charged an Early Termination Fee (ETF) comprised of your Minimum Monthly Charge as per your agreement with us, multiplied by the months remaining in your contract, in addition to any required hardware\device\software etc repayment fees. Each ETF is based on the standard full rate of the minimum monthly charges, promotional discounts received are not factored into this calculation.

8. Contract terms of 24, 36, 48 and 60 months available. Setup Fees – 24 Months: $150, 36/48/60 Months: Free setup. The minimum total commitment payable depends on the plan you choose: Minimum cost over minimum term: ((Monthly Line Fee x Number of Lines) x Contract Term) + $150 Setup if applicable – please check the relevant Critical Information Summary for exact figures. Promotional discounts are not factored into this calculation.

9. You will be responsible for device installation, including any associated cabling and configuration of your network and associated hardware devices on the network, required in order for the Service to work.

10. Minimum of 1 Line required for Business SIP PAYG, 2 Lines for Business SIP Unlimited. Business SIP Unlimited can only be purchased in 2 line increments.

11. Fair Use Policy applies. High volume telemarketing is prohibited with IP/SIP Voice Unlimited Plans.

12. Priority Assistance is not available on the Service. The Service may not be appropriate if you or another user have a disability, serious illness or other life-threatening condition which requires an uninterrupted phone line with access to 000 emergency services.

13. There are no bundle requirements with Business SIP plans.

14. Information and pricing was correct at time of printing. All prices include GST unless noted otherwise. nbn™, nbn™ co and other nbn™ logos and brands are trademarks of nbn co limited and used under licence.