What is UCaaS?
Unified communications as a service (UCaaS) is a cloud-based unified communications model that enables enterprise telephony, meetings (audio/video/web conferencing), unified messaging, instant messaging and presence (personal and team), mobility, and communications-enabled business processes. The provider owns, operates, maintains, and delivers the UCaaS infrastructure. Multitenancy (including tenant partitions residing on shared UC infrastructures such as data centres, racks, compute, network, common equipment, and blades) and self-service web portals for provisioning, management, and performance/usage reporting are typical features. The provider provides applications based on a common platform and licences the service for a monthly, recurring subscription fee.