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NBN Retail Service Provider


Please get in touch to enquire more about the products or to take your next steps to buy.

RSS The Blog

  1. NBN BUSINESS PHONE LINES (WHAT ARE THE OPTIONS?) TelAustralia Customer Service 11-Jul-2015
  2. PHONE SYSTEMS MELBOURNE TelAustralia Customer Service 05-Jun-2015
  3. NBN PHONE SYSTEMS (WHAT ARE THE OPTIONS?) TelAustralia Customer Service 03-Jun-2015
  4. SHDSL BROADBAND PROMO GETS BETTER FOR 12-18MBPS CUSTOMERS TelAustralia Customer Service 27-May-2015
  5. ISDN 2 POPULAR AGAIN (GUESS WHY?) TelAustralia Customer Service 21-May-2015
SIP Trunks

SIP Trunk Service

SIP Trunking Australia with our Business Grade SIP Trunks features and great value SIP Plans. The ultimate SME Phone System Phone Line.

  • Australian Based Sales, & Support Staff - Talk to an Australian professional every time you call us
  • Suitable for Business moving onto the NBN - The simple NBN Phone plan
  • Suitable for Medium Businesses with an IP PBX
    or SIP Gateway (voice router)
  • Use our SIP trunks for Cheaper Calls, No Connection Fees and Lower Line Costs
  • FREE Calls between Offices worldwide,
  • Excellent Call Quality over a Private Network,
  • The number 1 Alternative to ISDN Channels
  • Available in 2 line multiples (2,4,6,8,10 etc)

SIP Trunks Australia

SIP Trunks - The NBN phone plan for Small Business.

Because SIP trunks run over IP or VoIP they are perfectly suited to business changing to the National Broadband Network. If you have an IP compatible Phone system, simply get your NBN connection set up, order your SIP trunks and connect.

Huge Savings on Call Costs with our great value SIP Trunk Plans

If your staff call between offices frequently, or you have teleworkers in different locations, then those calls are FREE which will save a huge amount on your monthly phone bill whilst enhancing productivity and maintaining excellent call quality. And with flat rate local and national calls, staff can talk for as long as they like without you feeling the pinch.

Guaranteed Business Grade call quality

Because we rigorously apply or supply, configuration and testing to our service we can guarantee you the best available SIP trunk call quality. Our application of certified end to end process mean you get the best Business Grade call quality available at your site. To get our Guaranteed Call quality you must pre qualify your internet service wit us and we must hold the PSTN phone the ADSL or SHDSL service is carried over, provide the Router, Switch & ATAs and supply the SIP trunks. This enables us to manage the service end to end giving you the best call quality possible.


Choose Your Plan


DID Range






Calls to

Calls to
1300 Numbers

per trunk

per 10 numbers

$55 No-Port
$110 Porting


12c per call

12c per call

24c per min

30c per call

DID Numbers minimum 10, after can be purchased in 1 number increments. Number Porting $100 per Block per Address. Prices include GST. IMPORTANT NOTE IN REGARD OUT OF AREA NUMBERING - An out of area number will affect the cost of calls to and from the service. Calls will be charged as if you are located in the area normally associated with that number; and You may not be able to port this number to another provider because that provider may not be willing to accept the out of area number on their network.

Excellent flexibility for Business Cycles

Business rarely remains static and from time to time your business will need extra resources to cope with demand. SIP Trunks will grow with you as you need – either increase or decrease – and best of all they are simple to order and get up and running much quicker than traditional voice lines.

Combine our SIP trunking Service with your Current PBX or SIP Gateway

Our SIP Trunks work with a wide variety of SIP enabled PBXs and Gateways – this means if you have already invested in a system you will not have any issues with call quality or data translation. And, down the track, if you want to upgrade to a fully hosted system we will assist you with a seamless and simple upgrade.

Calls Carried over Dedicated ADSL/SHDSL Broadband

The IP in SIP refers to Internet Protocol, but there's IP and there's IP. Today's largest companies carry their voice calls over IP, but via a private network not the public internet. That means call quality can be guaranteed and backed-up with Service Level Agreements.

Telstra Business Centre Phone lines

Things You Should Know (Show/Hide)
1. In order to access the Service, you: will need a dedicated fixed line broadband Internet connection, such as ADSL 2+; will need an IP Phone; may need extra hardware depending on your set up e.g. router, switches. 2. We recommend that the Service be accessed with hardware supplied or approved by us, using a broadband ADSL or SHDSL service supplied by us to our specifications. The Service is designed to allow users to bring their own device, but we do not offer any guarantee or assurance that all devices will be compatible and function with the Service. 3. The broadband speed required for the Service will depend largely on your network demands. 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. 4 . We recommend having a standalone ADSL 2 connection for your SIP Trunks. 5. We recommend you install a CISCO SRP527W Modem for your SIP trunks as these will give priority to Voice calls over Data.

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Our testimonials

  • Our Hosted PBX Phone System and SHDSL internet Install was Seamless. I would recommend Telaustralia for anyone looking for that extra bit of service from their Phone Company. Our experience during our Hosted PBX installa.. more..

    Hosted PBX & SHDSL Macil Group
    Macil Group

  • Telaustralia was quick to react to our initial inquiries about a Business Grade Data Connection SHDSL and Hosted PBX Phone System. Shortly thereafter delivered the required communications and data plans to our business. .. more..

    Hosted PBX and SHDSL Subseaco

  • We engaged Telaustralia to install a new Phone System at our site. After getting a $4000 + quote from Telstra, Telaustralia gave us a Hosted PBX quote for $1500 and the system has so many features its amazing. Whats bett.. more..

    Hosted PBX Phone System Hummingbird Eco Retreat
    Hummingbird Eco Retreat

  • My Company retained Telaustralia to migrate our telephone, fax and internet system as well as advise us on a new NBN Phone and switchboard system. A prior office relocation and communications transfer was not handled.. more..

    NBN Phone System Lardner White Mt Eliza
    Lardner White

  • We'd like to thank Telaustralia for their wonderful service and professional manner in installing our NBN Phone System into our new office. Highly recommend their services - a pleasure to deal with. Sue Wilkinson Associa.. more..

    Sue Wilkinson
    Clauds Agency

  • Telaustralia was fantastic. Helpful, responsive, maintained ownership throughout our SHDSL & ISDN 10 Primary Rate Installation. ( more..

    Arran Goffe Sydney

  • Our office relocation went more smoothly than I could have hoped, thanks to Telaustralia. It was such a relief to have one point of contact for this project. Telaustralia managed the relocation of our fixed lines and sup.. more..

    J Levy
    Harms Consulting Sydney

  • Since changing to Telaustralia we have saved a considerable amount on our business phone accounts. We have been very impressed with the professional & prompt service we have received from the Telaustralia team. Nothi.. more..

    Jason Beare
    MBA Accounting Mornington

  • I would like to thank you for the level of service we received when you took over our business and home telecommunication accounts this year. It seemed like a daunting task to move our supplier considering we had been wi.. more..

    Tim Leonard
    Mortgage Choice Bayside Beaumaris

  • We are very new customers to Telaustralia after being referred by one of your existing clients. Telephone communications is so frustrating, different person everyone time you call for service,no followup and waiting peri.. more..

    Kim Reed
    Kim Reed Conveyancing Beaumaris

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