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Digital Workplace

Unified Communications as a Service (UCaaS)

Equip your people to do their best work from anywhere.

OnX delivers fully managed UCaaS on two enterprise-leading platforms, powered by our own high-availability voice core and carrier-grade SIP infrastructure.

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Answer the call for modern infrastructure.

The on-premises PBX that ran your business for the past decade wasn’t designed for what your business needs now. With hybrid work making remote calling a daily requirement, mobile workforces need their business number on every device. And every quarter, your IT team spends more cycles maintaining hardware that should have been retired years ago. 

Cloud voice solves the problem but only if deployed and managed properly. Off-the-shelf Microsoft Teams Voice and Webex Calling deployments give you the platforms but not the other critical elements. Among them: dial plan design, carrier services, E911 compliance, integration with your contact center, legacy line replacement, faxing, and 24x7 support.

 

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The OnX approach

The best UCaaS platforms on a stronger foundation

OnX delivers and manages Microsoft Teams Voice and Webex Calling, pairing them with a proprietary voice core that gives our clients capabilities the platform vendors can’t provide on their own. 

We deliver 99.99% uptime, site survivability for regulated environments, nomadic E911, spam filtering, custom call flows, and the dial plan flexibility your business needs. 

We're a Microsoft Solutions Partner for Modern Work with an Advanced Specialization in Calling for Microsoft Teams, a Cisco Gold Integrator and Provider with 260+ certifications, and an engineering-led delivery team that's been building enterprise voice environments for two decades.

UCaaS capabilities

Build a stronger foundation with digital workplace solutions tailored to your business needs.

Managed Voice Solutions


A true veteran in managed voice solutions, OnX offers full management and co-management of the top two voice calling platforms globally. Through careful consultation, design, and implementation, we build a strong and compliant foundation. Our managed voice solutions deliver what your business needs — from dial plan design to compliance with the latest regulatory requirements.

Routepoint for true co-management
Our in-house self-service portal supports AI insights, calling analytics, number management, disaster recovery, and more.

Cisco Gold Integrator & Provider
With 260+ Cisco certifications, we offer best-in-class PBX, Webex Calling for highly demanding environments, and uniform retail deployments across thousands of locations.

Microsoft Solutions Partner for Modern Work
With an Advanced Specialization in Calling, we’re trusted in voice enablement via Operator Connect or Direct Route to the Teams platform.

Calling Plan Only


Already have licensing and don’t need management? OnX offers PTSN connectivity to Cisco Webex and Microsoft Teams. Leverage our purpose-built, proprietary voice core for delivering calls into your existing investments. By using OnX for your calling plan, you gain access to the OnX Routepoint self-service portal.

SIP Trunking


We offer carrier-grade SIP Trunking on our proprietary voice core, with high-availability infrastructure, direct connections to all Tier 1 carriers, and the dial plan flexibility your business needs. We own and operate the voice core that connects SIP into Microsoft Teams, Cisco Webex, and any other UCaaS or CCaaS platform you run. SIP Trunking through OnX natively includes Routepoint, our self-service super app. It’s a competitive advantage other platform vendors struggle to replicate.

UCaaS Add-on Services


OnX offers a coordinated set of managed add-ons, including Attendant Console for high-volume reception, POTS and analog line replacement, compliance recording for regulated environments, business texting on existing business numbers, managed caller ID, faxing, and E911 dynamic location routing. While the right mix depends on industry, regulatory requirements, and legacy infrastructure, every OnX-delivered add-on is engineered to work across both Microsoft Teams Voice and Webex Calling. Everything sits under a single contract with one accountable partner.

Where to start

Advisory engagements

A CBTS advisory is a time-bound, fixed-fee engagement designed to give you a clear answer to a specific strategic question — fast.  

CX AI

Duration: Three to four weeks

Best for: Organizations ready to move from reactive services to AI-powered customer experiences that reduce cost, improve loyalty, and actually scale. If CX is a board-level priority but the path forward isn’t clear, this is where you’ll start.

The deliverables that matter

  • A validated AI readiness scoreA
  • prioritized portfolio of CX AI use cases
  • A target architecture ready to build
  • A funded and sequenced 18 month roadmap and a business case ready for board approval
  • A governance and compliance foundation

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What success looks like

Three outcomes show up most often when clients engage OnX for UCaaS.

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Cost optimization

 Cloud subscriptions replace hardware refresh cycles. A unified managed-services model replaces multiple vendor contracts. One government client saved $6.8M in communications costs in the first 24 months of their managed UCaaS deployment.

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Improved productivity

 Mobile workforces get their business number on every device. Remote workers get the same calling capabilities as in-office staff. Hybrid teams stop fighting their tools and start using them.

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Reduced risk

 Nomadic E911 with dynamic location routing. Site survivability for healthcare and other regulated environments. Compliance recording configured to the retention rules your industry requires. Carrier diversity through the OnX voice core means no single point of failure.

“Successful migrations require more than technology. Clients need one accountable partner to guide strategy, implementation, adoption, and ongoing support from start to finish.”

Trevor Sykes

Trevor Sykes

Vice President, Services Delivery

Don’t take our word for it

"OnX continues to be a reliable and trusted partner, consistently providing support whenever we have questions or encounter issues. Doug's proactive engagement — regular attendance at our meetings and close alignment with our roadmap — demonstrates a genuine commitment to understanding our priorities and aligning with our operational needs. A key factor in OnX's successful relationship with the City of Edmonton is its deliberate focus on understanding our environment, our challenges, and the business outcomes we are working toward. Their highly skilled technical team further strengthens this partnership, enabling us to confidently tackle complex initiatives and advance critical projects with greater speed and assurance."

ManagerCity of Edmonton / Government

"OnX has been an incredible partner and really takes the time to understand our needs and our culture. Elias and Gabriel have been fantastic throughout and represent OnX professionally and with curiosity about our technology landscape."

Centre for Addiction and Mental Health (CAMH) / Hospitals & Physicians; Medical

"The OnX account team consistently demonstrates a high level of professionalism and expertise. They are not only a pleasure to collaborate with, but also excel at understanding and translating customer requirements into practical, cost-effective solutions. Their ability to balance client needs with budgetary constraints ensures that projects are both feasible and aligned with business objectives. Overall, their commitment to service and depth of knowledge make them a valuable partner in achieving successful outcomes."

Sr. Manager IT InfrastructureDeloitte / Accounting Services

"The commitment and dedication by OnX is second to none. We truly do feel that OnX is simply more than a vendor — rather a valuable partner in Sask Polytech's overall success. We truly value the insight that Mark T, Tuyet L, Marcel M, Ali S and various others have guided us within our value streams. Cannot say enough good things about OnX."

Team Lead NetworkSaskatchewan Polytechnic / Education

"OnX's core competency in professional services, staffing and procurement services have been integral to the success of assisting the operations staff for the Canadian Blood Services. The OnX team have proved themselves to be more than a vendor but a partner in enabling the reliability for the services The Canadian Blood Services provides."

Canadian Blood Services / Organization; Non-profit

Where UCaaS connects

 UCaaS is one part of a converged digital workplace. OnX clients often pair their UCaaS investment with these capabilities.

Related insights 

Frequently asked questions 

What is UCaaS?

UCaaS, or Unified Communications as a Service, is a cloud-based service that replaces traditional on-premise PBX hardware with cloud-delivered voice, video, messaging, and collaboration. It’s the employee-facing side of cloud communications: the tools people use to talk to each other and get work done. Microsoft Teams Voice and Webex Calling are two of the most popular UCaaS platforms.


What is the difference between Microsoft Teams Voice and Webex Calling? Microsoft Teams Voice is the calling capability built into the Microsoft Teams collaboration platform. It’s the natural fit for Microsoft-first organizations that want a unified experience across Teams chat, meetings, and calling. Webex Calling is Cisco’s enterprise cloud calling platform, often preferred by organizations with an existing Cisco footprint or specific requirements around Cisco-engineered networking and voice. OnX delivers and manages both, and clients often run them in combination.
What is SIP Trunking, and is it included with UCaaS? SIP Trunking is the cloud-based voice connectivity layer that links your phone system to the public telephone network. It replaces traditional analog lines and PRI circuits with carrier-grade voice over IP. Every OnX managed UCaaS deployment includes SIP Trunking on our proprietary voice core — with direct connections to Tier 1 carriers and full integration into Teams, Webex, or any other UCaaS platform you run.
Can OnX help us migrate from a legacy PBX or analog phone system? Yes. PBX migration is one of the most common OnX UCaaS engagements. Every migration starts with a digital workplace assessment that documents the existing environment, then moves into UCaaS migration planning to produce a site-by-site cutover plan. The migration itself is delivered by the same OnX engineering team that built the plan. There is no handoff between the strategy and execution teams.
What does OnX deliver that the platform vendors don’t? OnX doesn’t sell software. Rather, we deliver the engineering, integration, and managed services that turn Microsoft Teams Voice and Webex Calling into working enterprise voice environments. That includes migration, dial plan design, carrier services on our proprietary voice core, E911 compliance, site survivability, compliance recording, legacy analog replacement, device management, end-user training, and 24×7 support: all under one contract with one accountable partner.

Start with a conversation.

The platform decision matters, but a successful UCaaS migration hinges on the work underneath it: carrier services, dial plan complexity, E911 compliance, legacy analog dependencies, and site-by-site cutover sequencing. OnX handles all of it on the same proprietary voice core that powers our enterprise deployments, under one contract with one accountable partner.