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Fixed mobile convergence (FMC): A helpful guide

Small business owner leaning back and smiling using mobile phone, working from home, sitting at desk in front of laptop using Microsoft Teams and telephony provided by a UCaaS provider


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3 min read

Have you heard the phrase “fixed mobile convergence” (or FMC) tossed around, and you need some information on what this technology is and how it works? You’ve come to the right place.

Businesses today are more mobile than ever, thanks in large part to the proliferation of smartphones and other mobile devices. And when smartphones meet UCaaS, the possibilities are endless. Mobile UCaaS can turn anyone’s cell phone into a business phone, without compromising your personal phone number. 

That’s the beauty of fixed mobile convergence. Let’s learn more about it. 

Today, we’ll cover: 

What is fixed mobile convergence (FMC)? 

Fixed mobile convergence (or FMC) is a communications solution that allows people to use a single phone when moving between home and office—and any other location!—without interrupting the ongoing call. 

FMC also means anyone can take and make business calls from anywhere without the need for a separate business phone… and without giving out your personal mobile number. 

How does it work? 

The mobile phone number and corresponding mobile device are used as the primary business interface solutions. The mobile SIM card becomes the fixed line extension, and the smartphone acts as the native endpoint to the extension. Any call placed from or to the native dialer will be routed via the third-party FMC integration, like RingCentral, for call control. 

When a business call comes through on your mobile device, it’s routed via the FMC integration but displays as a normal call. That way, your experience is seamless and easy without compromising your privacy. 

Benefits of fixed mobile convergence for your whole business 

The benefits of fixed mobile convergence go well beyond simply using your cell phone as your business phone. Let’s take a closer look. 

Benefits for business owners 

Business woman on mobile phone powering customer experience

Here are just some of the benefits when setting up fixed mobile convergence for your business: 

  • A single bill for all of your business communications: fixed, mobile, and UCaaS
  • Unified voicemail and directory services for fixed and mobile users
  • Minimize IT headaches by reducing the number of communication management systems
  • Presence integration
  • Single portal for administration 

Benefits for employees/team members 

A tech upgrade is only helpful if team members feel confident using it. FMC has plenty of perks for any end user:

  • Work from anywhere when your cell phone is your business phone 
  • Protect your private information with a single business identity: No more giving out your personal cell phone number when away from the office! 
  • Ensure no call goes unanswered with cloud-based communication
  • Save time and energy with advanced call routing, custom announcements, and so much more
  • Add conferencing and collaboration features as needed

Supercharge your FMC experience with a UCaaS provider


Combining fixed mobile convergence with unified communications (or UCaaS) can take your business phone to the next level.

For example, RingCentral is both an FMC provider and a UCaaS platform, with tons of team collaboration and communication tools beyond making and taking calls. These features come standard with any RingCentral plan: 

👀 Interested? Take a 2-minute tour of how RingCentral can elevate your business communications: 

Examples of fixed mobile convergence in different industries 

You can probably already see just how useful FMC might be in your day-to-day business operations. Here are some examples of fixed mobile convergence across various industries an the FMC tools they find valuable: 

  • Finance: Compliance recording in accordance with industry regulation for banks, mortgage brokers, and insurance
  • Service & construction: Single-number reach for confidentiality, call queues, skill-based routing for different specialties 
  • Healthcare: Secure calls for client confidentiality (both internal and external), skill-based routing for more efficient care 
  • Manufacturing & transportation: Take calls on the road, from the conveyor belt, or from anywhere, call queue routing 
  • Retail: Call queues, auto receptionist

Choose the right FMC provider  

With a workforce that is more mobile than ever, it’s easy to see just how beneficial FMC is to businesses today. Choosing a fixed mobile convergence provider like RingCentral means you’ll also get expertise in telecommunications, an easy-to-use interface, and a variety of tools and integrations to help your business thrive. 

Want to learn more about becoming a partner? Check out our Global Service Providers program, RingCentral RISE.

Originally published Jul 06, 2023, updated Jul 13, 2023


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