What does the rise of Microsoft Teams mean for traditional phone systems?

Having a single integrated piece of software that handles all communications and collaboration for an entire company is something that IT admins and HR departments across the world dream of. If you add another layer on top of this that enables businesses to deploy and manage users across any device on a platform which boasts a five 9's uptime guarantee and industries start to revolve around it.

But when global ways of working change because of one tool, what happens to existing communications infrastructure and operations? 

Over the past decade or so Microsoft have taken ownership of the desktop, with the Windows operating system now accounting for around 68% of the desktop, tablet, and console OS market.

What is less well known however is that on top of this (and despite Teams being unbundled from some of the standard Microsoft licensing bundles), the tech giant has also well and truly shown their dominance when it comes to collaboration and PSTN enablement with their Teams solution.

As they head towards potentially capturing half the integrated voice market for themselves, Microsoft are enabling business communication in a few different ways, but if there is one thing you take away from here let it be this - As a provider, the rise of Microsoft Teams in the communications space presents massive amounts of opportunity for you.

 Business communications today and tomorrow

How Teams Phone works with existing infrastructure

As businesses of all sizes move more and more towards hybrid-working models, what they view as their communication must-haves are changing. There is obvious enthusiasm amongst users to do everything in Teams, but there are also serious business requirements that must continue to be delivered as our idea of the workplace evolves.

Traditional phone systems remain unrivalled when it comes to maintaining business as usual for things like compliance, reporting and call centre functionality, so for the most part, any Microsoft-based solution has to work hand in hand with existing infrastructure. This is where Direct Routing comes in. As the current leading form of Microsoft Teams voice enablement it seamlessly integrates into whatever existing setup an organization has. You may be asking yourself "But that just sounds like Microsoft are aiming for my business", but it is in fact the opposite. Mark Herbert, Our Chief Partner Evangelist, said it best:

"Microsoft’s voice strategy does not appear to be to want to run the worlds’ biggest PBX. Microsoft have provided an interface for PSTN and PBX integration with Microsoft Teams, a decision which suggests Microsoft’s primary interest is selling Teams, not phone systems.” 

Some UC providers continue to try and ‘out-Teams’ Microsoft by remaining completely separate from the platform. Of course if you have a big enough market this is viable for the likes of Zoom and Webex, but for most providers working with rather than against Microsoft has been proven to produce the most viable routes to revenue. PSTN integration is simply a great way for Providers and Vendors to grow and adapt their offering to suit the modern world of communications. And as Microsoft Teams deployment continues to happen at an exponential pace across the globe, embracing a ‘Teams-friendly’ strategy presents new and exciting opportunities for providers

Deploying a Teams Phone solution

One of the main reasons as to why Direct Routing has become the most popular Teams Phone options is the way in which it can be rolled out as a service. Direct Routing as a Service (DRaaS) gives the best of both worlds in the way that it allows organizations to retain all of the functionality of their existing hardware whilst also unlocking the full power of Teams calling, quickly and easily.

Not only has Direct Routing been the main driving force behind Teams Phone growth up to now, it can be the key that helps you tap into the success of Teams and its hundreds of millions of monthly active users.

business communications today and tomorrow

Integrating an existing phone system with Microsoft Teams

In the race to differentiate, the providers who give customers the richest experience without making them compromise are the ones who always come out on top. As voice and IT services continue to converge, fixing the ‘with-Teams’ challenge can help you  to build and maintain clear differences in your offering as the market evolves.

Call2Teams is our award winning middleware that lets you give businesses exactly what they want - The ability to reap the benefits of a single collaborative hub, whilst avoiding the loss of their existing calling infrastructure. Sitting between Microsoft Teams and the PBX, Call2Teams enables native Teams calling in tandem with all of the operability companies are used to getting from their phone system. This means no rip and replace with minimal disruption in return for centralizing everything a business needs to communicate and collaborate into a single pane of glass.

Want to start using Teams to your advantage? Get in touch with us today for more information.

Last Updated: 09/01/2025

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