Dedicated Hosted server refers to leasing out your own server at a hosting provider. This is most suitable for organizations who want complete control of their servers. In dedicated servers typically organizations can get things customized as per their requirements.
Typically a dedicated hosting provider makes available a barebones server which can be customized with different CPU, RAM and Hard Drive options. The usage is still restricted in terms of bandwidth and speed and depends on the plan you choose, but is typically much more than what is provided by shared hosting.
Dedicated hosting is the most expensive hosting option and is typically used only by organizations
1. Freedom to have any required customizations.
2. Complete control on the resource utilization of your server as no one else is using the server.
3. Data can be as secure as you want it to be.
1. This is the most expensive hosting options and is typically only used by medium or large contact centers.