Most UCaaS and cloud communication providers assume they're competitive. They've been in the market for years, their platform is stable, they chose a best-in-breed platform like BroadWorks, NetSapiens, or Metaswitch, and their customers seem happy. The problem is that enterprise buyers aren't evaluating you against your history — they're evaluating you against what your competitors already have on their website today.
ECG recently completed an analysis of publicly available product data from over 700 UCaaS and cloud communication providers across the U.S. and globally. What we found was a significant gap between what providers are offering and what buyers are now expecting as a baseline. Some of those gaps are understandable given legacy platform constraints. Others are surprising — because the features that are missing aren't hard to add, and the biggest providers have already added them.
We identified 10 capabilities that are actively differentiating providers right now. Several of them are surprisingly easy and inexpensive to implement. And yet a significant number of providers — particularly smaller ones — don't have them. That absence doesn't go unnoticed during a competitive evaluation.
One feature gap that stands out more than almost any other: mobile voice via eSIM, with no app required.
The UCaaS industry spent years moving users off desk phones and onto softphone apps. That was a reasonable step at the time. But apps come with real costs that providers and their customers are increasingly tired of paying. A softphone app lives on the data channel — if the network is congested, on a VPN, or simply patchy, call quality suffers. Every user has to download it, configure it, log in, and remember to keep it updated. And those updates aren't optional: every app version left unpatched is a potential security exposure. For enterprises managing hundreds or thousands of endpoints, that's a real operational burden.
eSIM-based Fixed Mobile Convergence (FMC) sidesteps all of that. The user's business number lives directly on their phone's SIM — it works on the cellular voice network, the same way a regular cell call works, with no app, no data dependency, and no user complexity. If your UCaaS platform goes down, calls still route. If the Wi-Fi is bad, calls still work. The business number travels with the employee, on the device already in their pocket, without requiring them to do anything differently.
This matters more than most providers realize. We've talked to service providers whose customers are already moving in this direction — shifting entirely away from VoIP on the road because their employees simply want a phone that works like a phone, with their business number on it. We've also talked to enterprises who replaced expensive redundant UCaaS platform licenses with eSIM lines as a resilience layer — a far simpler and more cost-effective answer to the "what happens when the platform goes down" problem.
And here's the part that should get the attention of every smaller provider reading this: our data shows essentially zero adoption of eSIM/FMC among providers under $10M in revenue. Not low adoption — near-zero. Yet the integration path is straightforward. Major platform providers like NetSapiens are already packaging it as a standard feature set — they've been calling it UCaaS Mobility 3.0. The engineering lift is modest. It's mostly setup time, and then you have a resellable capability that larger providers are already marketing. The providers who add this now will have something to talk about in their next enterprise evaluation. The ones who don't will keep getting filtered out.
The broader picture is the same. There are providers out there who want to grow, who want to compete for better contracts, and who are leaving capability gaps open simply because no one has told them how close they are to closing them. That's what this report is about.
On April 28, ECG is hosting a webinar to walk through exactly what we found. We'll show how your feature portfolio compares against providers in your revenue segment, which capabilities buyers are already expecting, and where the emerging features are headed before they become table stakes. You'll walk away with a clear, data-driven picture of your competitive position and a short list of actionable next steps.
The question isn't whether gaps exist. They do — across the industry. The question is whether you know where yours are before your next enterprise opportunity finds out for you.
Register for the April 28. 2026 webinar:
Are You Competitive?
A Data-Driven Look at Cloud Communication Features.