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Optus Evolve Voice

Simplify your corporate telephony solution by connecting your IP PBX or TDM PBX to the Optus Evolve network.

Does your organisation have the telephony solution it needs?

Optus Evolve Voice is a SIP trunking telephony service which connects your IP PBX to the public telephone network, over a single IP connection. This simplifies the network and allows for greater flexibility and scalability. A TDM PBX variant is also available.

Optus Evolve Voice uses Optus Evolve advanced network so, if you wish, you can simplify your network even further by converging your voice and data traffic on a single connection.


Optus Evolve Voice is a SIP voice trunking service which connects your company's IP PBX to the public telephone network (PSTN) over the Optus Evolve® network so phones attached to the PBX can make and receive voice calls. It uses Optus Evolve IP VPN.

Optus Evolve Voice provides a flexible, scalable and reliable telephony service.

  • Full voice functionality - supports standard telephony functions like Calling Line Identification,
  • Simple connectivity - Connect to PSTN via simple Ethernet SIP trunk connection, without mediation equipment. You can also replace multiple connections with a single one.
  • Scalable - Easily add voice channels as needed.
  • Standards-compliant - works with most IP PBXs.
  • Ready for convergence - Option to use the Optus Evolve IP VPN connection for voice only or voice and data.

A TDM PBX is able to be connected to an Optus Evolve Voice service in the same simple way it is connected to a traditional TDM telephone service. You are able to change to an IP PBX at any time in the future, without the need to change the trunk.


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Optus Evolve Voice Factsheet


Simplified connection to the PSTN - A simple Ethernet cable provides the connection from your IP PBX to Optus Evolve Voice and to the PSTN.

Reduced infrastructure - No need for mediation devices.

Converged voice and data connectivity - Use a single access for voice and data via Optus Evolve IP VPN, reducing total cost of ownership by removing the need for separate access connections for voice and data.

Enhance data traffic performance by utilising idle voice bandwidth for data.

To find out more about how Optus Evolve can transform your business, contact your Optus Account Manager.

Why buy this product

As the challenger in the Australian market, Optus purpose built the Optus Evolve network to address real-world business issues as requested by our customers.

  • The modular design of the Optus Evolve network makes it simpler to add new sites and services, or upgrade capacity, to meet your changing business needs.
  • Optus Evolve has been designed for reliability and high performance, and is backed by Optus SLA's.
  • Billing has been simplified with charges on a site-by-site basis.

Commercial overview

Optus Evolve Voice pricing is made up of several elements:

  • Optus Evolve Voice line rental for voice only services. There is no line rental for voice and data implementations.
  • Per call charges for voice calls
  • Per feature charges for voice features such as emergency diversions.

The Optus Evolve IP VPN and Optus Evolve Managed Router Service (MRS) modules are also required with Optus Evolve Voice.


Optus contracts with customers either on an individual basis, or by way of a standard form of agreement (Standard Agreement). To view the Standard Agreement documents for Optus Business Data Services, please go to


The Optus Evolve network is monitored 24 x 7 by Optus and is backed by comprehensive SLA’s.

Technical overview

Connecting your IP PBX to the PSTN is simplified with Optus Evolve Voice. A simple Ethernet cable provides the connection from your IP PBX to Optus Evolve Voice and to the PSTN.


  Optus Evolve Voice delivers the telephone service in native IP format so you can directly connect your IP PBX to Optus Evolve Voice via a router at your premises. Mediation devices (i.e. media gateways) are no longer required at your premises.


  The Optus Evolve Voice service is available by itself for a voice only solution or combined with the data traffic capabilities of Optus Evolve IP VPN for a converged voice and data solution delivered via a single service.


In order to use the Optus Evolve Voice service, you will need the following Optus Evolve modules:

Technical Attachments

Optus Evolve Voice Topology

Optus Evolve Voice Topology

Support overview

For service enquires, billing, incident handling and changes

To report an incident, log a service request or make enquiries please call your assigned service desk number, otherwise call 134 315, operating 24/7 for incident handling and Monday to Friday 8:00am - 5:30pm AEST for other enquiries.

For non-urgent issues, use the Optus eCare portal to raise and manage service issues.

To see other contact details for Optus click here.

Tools and Downloads

Access Optus eCare online reporting and management portal. You must be a registered user to gain access to this service.

Product FAQs

What is Optus Evolve?

Optus Evolve is an advanced IP communications network that delivers tomorrow's converged business applications today - enabling your business to be more productive, now and into the future.

What are the key features of Optus Evolve?

Some of the key features of Optus Evolve are:

  • Application-aware capability - enabling you to develop and manage optimal service levels for your converged business applications
  • Class of service/quality of service (CoS/QoS) performance targets in the core network for round trip time (RTT), jitter and packet loss - to provide an ideal platform for network convergence
  • Greatly improved reporting and billing services - to give you more control and take the complexity out of dealing with your telecommunications provider
  • It provides an easy-to-manage remote access solution that enables remote and mobile workers, as well as trusted business partners, to access applications on your network
  • It introduces standardisation of features across all business-grade services - to simplify network operations
  • Ethernet interfaces are standard across all access methods - for lower-cost customer premises equipment, and standardisation of the local and wide area networks
  • Port and access are bundled - to simplify pricing, billing and cost allocation by site
  • It delivers improved features and higher bandwidths at lower total cost
  • It includes improved redundancy and service level targets

How can Optus Evolve help me to reduce costs?

Optus has been driving value in the Australian telecommunications market since 1992, and Optus Evolve can help reduce both the direct and indirect operating costs associated with running your communications network. For example, Optus Evolve IP VPN allows you to replace legacy networks with a single, easy-to-manage network platform that provides far greater visibility and control. Being modular in design, it enables you to choose the components you need to suit your business requirements, and adapt the network as requirements change.

How can Optus Evolve help me to reduce risk in my business?

You have the security of knowing that Optus is a tier-1 player with extensive network coverage, backed by SingTel, the largest communications company in Asia, and that Optus Evolve is based on a true carrier-grade core and edge network.

Can Optus Evolve make dealing with my telco easier?

Optus Business' vision is to provide the best in business customer experience, and the Optus Evolve product suite is a key component on the road to delivering on our vision. It provides our customers with reliable, secure and user-friendly communications services, allowing you to modify the network to suit your changing business requirements without having to rebuild your network.

What does it mean for Optus to be part of the SingTel Group?

Since 2001, Optus has been at the heart of the SingTel Group, Asia's leading communications company. Through the SingTel ConnectPlus Network, we can connect your sites around the world into your Optus Evolve network.

Billing FAQs

What number do I call for billing enquiries?

Please call the billing contact number on your invoice, your assigned service desk or otherwise call 134 315, Monday to Friday 8:00am - 5:30pm AEST for other enquiries.