What Does Unified Communications as a Service (UCaaS) Mean?

Unified communications as a service (UCaaS) refers to a service model where providers deliver different telecom or communications software applications or services, generally over the global IP network.

Techopedia Explains Unified Communications as a Service (UCaaS)

Unified communications as a service is a subcategory of software as a service (SaaS), where providers deliver software products and processes through the web. These types of provisions offer several unique benefits to companies. One of them is scalability, where companies can add or subtract services as necessary. Another is the convenience and lower cost of outsourcing services, compared to the cost of acquiring hardware setups for unified communications.