UCaaS infrastructure is owned, operated, maintained and delivered by the provider. Typical characteristics include multitenancy (including tenant partitions residing on shared UC infrastructure, such as data centers, racks, compute, network, common equipment and blades) and self-service web portals for provisioning, management and performance/usage reporting. The provider delivers applications from a common platform and licenses the service for a monthly, recurring, subscription charge.

Unified communications as a service is a category of “as a service” or “cloud” delivery mechanisms for enterprise communications. Similar to the platform as a service, with UCaaS, unified communications services can be made available from the cloud to businesses

Enterprise telephony

Meetings (audio/video/web conferencing)

Unified messaging

Instant messaging and presence (personal and team)


Communications-enabled business processes