Top Unified Communications as a Service (UCaaS) Providers in 2021

The world today has undeniably entered a new era of digital transformation. With a shift in the way we communicate and a rise in remote working, the demand for organisations to support complex collaboration from anywhere, and across multiple devices, has grown exponentially. 

The good news is, the growing need for secure and reliable mobile working environments has introduced an influx of Unified Communications as a Service (UCaaS) technology, and the development of cloud-based communication. More flexible and cost effective than legacy on-premises PBX and video conferencing systems that it replaces.

The difficult part is, with an increasing number of advanced UCaaS platforms at your fingertips, how do you choose the right UCaaS provider for your business?

In this article, we cover the most trusted, world-class vendors we partner with and could introduce for your business.


8×8 is an innovator and leader in cloud communications. The 8×8 X Series platform integrates cloud-based voice, video and messaging into one secure global platform. 8×8 is known for its global service, multiple datacentres, Microsoft Teams certification, value for money and advanced API integrations. Growing A/NZ staff base. Gartner UCaaS Leader. Nasdaq: EGHT


Aircall is a growing cloud-based business phone and call centre system that streamlines customer support and sales processes. Encompassing much that a call centre needs to deliver great service, Aircall is making a name for itself through multiple integration options with customer relationship management (CRM) software. One of the very few Australian providers to offer SMS from the UCaaS platform.  

Avaya Cloud Office by RingCentral

Avaya and RingCentral are two industry leaders that have come together to bring the UCaaS leadership of RingCentral to the extensive history and base of Avaya creating Avaya Cloud Office. The platform offers a comprehensive cloud solution for voice, video, instant messaging and collaboration across all devices, in every location. A long history in A/NZ and experienced staff. Nasdaq: AVYA


Dialpad offers an AI-powered contact centre and a simplified communication solution for organisations of every size. Collaborate from anywhere globally with a unified platform that powers video conferencing, voice, and direct messaging across multiple devices. Historical links to Google Voice drive its AI-powered insights, and features near real-time transcription for every call. 


Fuze is a cloud-based communications provider for the modern global enterprise and has a very determined emphasis on serving large enterprise grade customers in UCaaS and call centre. Recognised as a Visionary in the Gartner 2020 UCaaS Magic Quadrant. An early entrant to cloud UCaaS in Australia.  

LogMeIn’s GoToConnect

GoToConnect combines Jive’s Voice over Internet Protocol (VoIP) phone systems with GoToMeeting’s audio and video capabilities in one simplified cloud communications platform. GoToConnect has everything you need for virtual business communications, within a secured platform. Integrates with Microsoft Teams. Part of the LogMeIn stable with a significant Australian team and deep partnerships with CCaaS providers.


RingCentral has been an upward leader in UCaaS for several years, rated most highly in Garter’s UCaaS upper quartile. Integrates with Microsoft Teams and CRM such as Salesforce and Hubspot. Has introduced features and services others have followed. RingCentral’s solutions provide a single user identity across multiple locations and devices, including smartphones, tablets, PCs and desk phones. Growing Australian team and strong partnerships with multiple providers. Nasdaq: RNG.


Vonage offers over 40 advanced features that provide businesses with flexible, reliable and scalable capabilities from anywhere in the world. Boasting a global platform with expert support in voice, messaging, video and data-sharing – Vonage gives the tools needed to deliver exceptional customer service. Deep relationship with Salesforce. Nasdaq: VG

Zoom Phone

Zoom Meetings was there when everyone needed it when Covid struck. This is the new normal now and Zoom’s UCaaS platform provides more than just video conferencing. The platform features VoIP phone services, instant messaging and instant collaboration all in one application for a streamlined cloud-based communication experience. Gartner UCaaS Magic Quadrant Leader 2020. Nasdaq: ZM

Get Expert Advice On The Best UCaaS Provider For Your Business

As a leading cloud-based communications provider for companies in Australia and New Zealand, Great Outcomes has extensive knowledge of the global UCaaS market and close relationships with the providers. 

We partner solely with top-tier and analyst rated vendors who can deliver the leading unified communication solutions for our customers. With low-risk solutions, zero trust architecture, and proven reliability, we carefully select vendors to introduce to you that will transform your business operations to be more productive, secure, agile and scalable. 

Contact us today for expert advice navigating the large selection of UCaaS platforms on the market. If you have a UCaaS provider in mind that’s not featured in the list above, please get in touch with us, we’d be happy to assist.

Still happy with your legacy systems on-premise? Read our recent blog on the cybersecurity issues of legacy phone systems; A CyberSecurity Guide To Legacy Systems

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