What is one of the core advantages of using a cloud-based phone system like Webex Calling?

One of the core advantages of using a cloud-based phone system like Webex Calling is the flexibility in scaling phone lines. This means that organizations can easily adjust the number of phone lines or extensions as their needs change, without the hassle of installing additional physical hardware. For example, during growth periods, a business can quickly add more lines to accommodate new employees or temporary projects. Conversely, downsizing or adjusting services can be done with ease, allowing companies to optimize costs and resources efficiently. This scalability is a significant benefit of cloud solutions, making it easier for businesses to adapt to fluctuating demands.

The other choices present aspects that are not aligned with the operational advantages of cloud-based systems. For instance, increased physical hardware requirements would actually be a disadvantage, as cloud solutions typically reduce the need for extensive on-premises infrastructure. Similarly, limiting call quality is counterproductive, as cloud phone systems are designed to maintain high standards of call quality. Lastly, incompatibility with mobile devices contrasts with the actual benefits of cloud systems, which often include seamless integration with various devices, enhancing access and communication flexibility for users on the go.