If your business runs on an Avaya IP Office phone system, you have probably already heard the news. Avaya has pivoted hard toward large enterprise customers, leaving smaller and mid-sized businesses to figure out their next move. After nearly 40 years watching this industry evolve, I have seen vendors come and go, but this shift is worth paying attention to. If you are looking for a reliable Avaya IP Office alternative in Australia, the good news is your options are better than ever.
What Has Changed at Avaya?
Avaya has had a turbulent few years. The company filed for Chapter 11 bankruptcy protection in January 2017, emerged, and then filed again in February 2023. It came out of that second restructuring in May 2023 with a very different set of priorities. The new strategy, known internally as the “G1500” approach, puts resources firmly behind large enterprise deployments of 1,500 seats or more.
The clearest signal for smaller businesses came in mid-2025. From June 30, 2025, Avaya discontinued direct support for contact centre deployments with fewer than 200 seats. Additionally, Avaya ended its SIP trunking and Communications API services in April 2025. These are not minor footnotes in a product roadmap. Together, they mark a deliberate decision to leave the small and mid-market behind.
To be fair to Avaya, Avaya IP Office R12.0, the current software release, remains commercially available and supported. However, if you are running any release prior to R11.1, you are already outside Avaya’s critical patch and security update window. And the broader trajectory is unmistakable: Avaya’s investment, innovation, and partner resources are flowing toward enterprise customers, not businesses of 10, 50, or even 150 people.
Why This Matters for Australian Businesses on Avaya IP Office
Australian businesses using Avaya IP Office, whether the IP 500 V2 hardware or a virtualised server installation, face a few practical pressures right now. First, the local partner and reseller ecosystem that supports these systems has thinned out considerably. Finding a qualified Avaya-certified technician who knows IP Office deeply and can respond quickly is harder than it was five years ago.
Second, any system running older Avaya software releases is now operating without security patches. In today’s threat environment, that is a meaningful business risk. The Australian Cyber Security Centre consistently names unpatched software as one of the most common entry points for cybercriminals targeting Australian businesses.
Third, and perhaps most practically, hardware ageing out means higher maintenance costs and limited upgrade paths. On-premise phone systems require physical infrastructure. When that hardware fails, replacement parts become harder to source, and more expensive.
The Case for Moving to a Cloud Phone System
This is exactly the moment where migrating to a cloud-based phone system makes financial and operational sense. A Cloud PBX (Private Branch Exchange) delivers all the call routing, auto-attendant, voicemail, and extension features your Avaya system has provided, without the on-site hardware, maintenance contracts, or vendor uncertainty.
Businesses that switch from an ageing on-premise system to a hosted phone system typically see meaningful cost reductions. There are no hardware refresh cycles to budget for. There are no per-site hardware installations when you open a new location or add remote staff. You simply add users to your cloud phone plan.
For businesses already using Microsoft Teams, a SIP (Session Initiation Protocol) trunking connection through a local Australian provider can turn Teams into a fully functional business phone platform, connecting your team to the public phone network without needing to touch your existing internet provider.
Why SIPcity Is the Right Avaya IP Office Alternative in Australia
SIPcity is an Australian-owned, B2B-only cloud communications provider. We built this business specifically for companies like yours: businesses that need professional-grade phone infrastructure without enterprise-scale pricing or enterprise-scale complexity.
Here is what that looks like in practice. SIPcity’s Cloud PBX gives you a full hosted phone system, including auto-attendants, hunt groups, call queues, voicemail to email, and softphones, all managed through a simple web portal. Your team can work from the office, at home, or on the road. The system moves with them.
Importantly, you do not have to change your internet provider when you switch your voice to SIPcity. We provide voice services over your existing NBN (National Broadband Network) or business internet connection, whatever that is. This is one of the most common concerns I hear from business owners weighing up a move: the idea that changing phone systems means a big technology overhaul. It does not have to.
We also offer SIP trunking for businesses that want to keep their existing phone system (or Microsoft Teams environment) and simply replace the Avaya SIP trunking that has been discontinued. If you have already invested in desk phones or an on-site call manager, SIP trunks are often the fastest and most cost-effective migration path.
Migrating From Avaya IP Office: What to Expect
One of the practical concerns with any phone system migration is number porting, keeping your existing business phone numbers. This is straightforward in Australia under the ACMA’s number portability framework. SIPcity handles the porting process for you, so your customers and suppliers reach you on the same numbers they always have.
The migration itself is typically faster than most business owners expect. Because there is no hardware to install at your premises, the phone system runs in the cloud, the main tasks are configuring your call flows, setting up users, and porting your numbers. For most small and mid-sized businesses, that process takes days rather than weeks.
If you have a more complex Avaya setup, multi-site, contact centre queuing, or integration with a CRM, we will work through that with you before you commit to anything. There are no surprises and no lock-in contracts designed to trap you once you are in.
A Note on Australian Data and Sovereignty
This matters more than many businesses realise. SIPcity operates on private Australian infrastructure. Your voice data and business communications do not leave Australia or pass through offshore cloud platforms. For businesses in regulated industries, healthcare, legal, financial services, or government supply chains, that is not a nice-to-have. It is a compliance requirement.
As an Australian-owned provider focused entirely on business customers, we have no residential customer base competing for support resources. When you call SIPcity, you reach someone in Australia who knows your account.
Is Now the Right Time to Move?
My honest answer: if you are running Avaya IP Office on anything older than R12.0, the right time was probably six months ago. That said, the second-best time is now. Waiting for a hardware failure or a security incident to force the decision is the most expensive way to migrate.
If you are on R12.0 and your system is stable, you have a bit more runway. But Avaya’s strategic direction is clear. Planning a migration over the next 12 to 18 months, rather than reacting to one, gives you the time to choose the right platform, configure it properly, and train your team without pressure.
The Avaya IP Office alternative in Australia that makes the most sense for your business depends on your size, your existing infrastructure, and how you want to work in the future. SIPcity can help you work through that, and we are not going to push you toward something you do not need.
Ready to Explore Your Options?
If you are running Avaya IP Office and wondering what comes next, I would love to have that conversation with you. We can look at your current setup, talk through what a migration would actually involve, and give you a straight answer on costs and timelines. No obligation and no pressure. Get in touch with the SIPcity team today, you know where we are.