Instead of hosting an on-premises PBX telephony solution, your organization has chosen to outsource this to a public cloud provider. Which category of cloud services does this apply to?

Topics:    
- Cloud Service Models    
- Cloud Deployment Models and Services    
- Cloud Characteristics and Terms    
- Object Storage Concepts    

Cloud computing is attractive to many organizations because it puts the focus on business processes and the delivery of goods and services instead of on the underlying technology that makes it all happen.
The attraction also lies in not having to absorb up-front costs related to IT hardware, software, and licensing, as well as other costs related to IT system installation, configuration, and ongoing maintenance.