What is a ucaas?

Unified Communications as a Service. A cloud-delivery model that bundles various communication and collaboration applications and services, such as enterprise telephony, meetings (audio/video/web conferencing), and messaging.

Who uses one?

Small businesses replacing landlines with cloud phone systems

What does it cost?

Pricing varies. The cheapest provider in our Top 11 starts around $13/mo. See the cheapest providers ranked.

How do I pick one?

Read the full methodology for our 9.4-point scoring framework, then look at the canonical The 11 Best VoIP Business Phone Systems. If you want a slice of the ranking by price, fit, or compliance, jump to: cheapest · highest-rated · fastest onboarding.

Source: Top 11 The 11 Best VoIP Business Phone Systems, verified June 16, 2026.