UCaaS is everyday calling, messaging, and video, while CCaaS runs a queue of agents.
UCaaS is billed per user for calling, messaging, video, and presence.
CCaaS is for a queue of contacts, not a shared front desk.
Each range below is the published premium price, widened by that vendor's confidence band. State tax is not included, because it depends on where you are. Prices as published by each provider. Data as of 2026-10-04.
A TechEstimate is a range. A written proposal is the number you can hold a provider to.
These phone systems are alphabetical. This is not a quality ranking.
TechlyScore ranks them for your setup when you compare in real time.
123NET: $21 to $39 per user/month. 8x8: $26 to $30 per user/month. Aircall: $35 to $45 per user/month. AireSpring: $24 to $46 per user/month. Allworx (Windstream): $18 to $32 per user/month. AT&T Office@Hand: $26 to $34 per user/month. Avaya Cloud Office: $22 to $28 per user/month. BCM One: $19 to $35 per user/month.
More providers are in the same table. The list stays alphabetical.
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Unified communications as a service: calling, messaging, video, and presence delivered together from the cloud and billed per user. It is the category most business phone systems now sit in.
UCaaS is for people who talk to colleagues and customers as part of another job. CCaaS is for teams whose whole job is handling contacts, and it adds queue management, routing rules, and agent reporting.
Rarely. If a few people answer a shared number, call queues in a normal phone system are enough. CCaaS earns its cost when you are managing agent occupancy and service levels.
Per user per month, in tiers, with the cheaper tiers excluding recording, analytics, and integrations. Contact center seats are priced separately and cost considerably more.
VoIP is the calling technology. UCaaS is the bundle that includes calling plus messaging, video, and presence. Every UCaaS product uses VoIP underneath.
Related: call-center-software-for-small-business, business-phone-system-with-call-recording, best-phone-system-for-small-business. Glossary: voip, pbx. How to buy.
Data as of 2026-10-04.