How is Cisco Webex Calling typically purchased?

Cisco Webex Calling is typically purchased through a subscription model. This approach allows businesses to access the communication services they need on an ongoing basis without the significant upfront investment associated with one-time fees. Subscriptions provide flexibility in terms of scaling services according to organizational growth or changing requirements, and they often include regular updates, support, and new features as they are released. This model aligns with modern software distribution trends, focusing on providing continual access rather than a one-off purchase, which can be more advantageous for businesses looking to manage costs and adapt quickly to changes in technology.

The other options, such as a one-time fee or annual payment, do not reflect the standard purchasing method for services like Webex Calling, which lean more towards a recurring revenue model. While it's possible to pay annually under a subscription plan, the primary aspect is that it is indeed a subscription service, highlighting the ongoing nature of service delivery in the modern cloud communication landscape.