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InterviewUC&C15 Jun 2025 · 1 min read

What is UCaaS? Your Comprehensive Guide

Learn what UCaaS changes for hybrid work: cloud-based calls, meetings, chat, PBX replacement, AI, Teams and Zoom Rooms.

UCaaS guide

What is UCaaS? Defining UC as a Service

A lot of people using the term UCaaS probably haven’t defined it out loud in a while.

The acronym stands for Unified Communications as a Service. It’s a system that allows companies to run all their core communication tools from a single, cloud-based platform. You don’t have to host the servers or manage the updates. The vendor handles that.

Voice and telephony

Still the backbone of most deployments. You get VoIP calling, number porting, call routing, hunt groups, caller ID management, and so on.

  • Native room system support
  • Mobile reliability across weak networks
  • Call routing flexibility
  • Integrated AI companions
  • Compliance call recording
  • API access and integrations

How to Migrate to a UCaaS Platform

Step 1: Audit your current communications setup

Before you start browsing vendors or booking demos, stop and look around. What’s already in use? Is everything actually working?

Step 2: Decide how you'll move, not just where

  • Roll it out in phases. Start with one team or region.
  • Run both systems side by side. Let people ease into the change.
  • Keep some things on-prem. Use a hybrid approach where needed.

UCaaS: The New Standard for Communication

Choosing UCaaS today isn’t about cutting telecom costs or ditching legacy gear. It’s about setting your teams up to communicate effortlessly.

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