At AccuWeb Hosting, we offer a Device based CAL license for $40/month for an additional 5 Remote Desktop Connections. To avail of the additional Device based CALs, you just need to submit the support ticket from your Helpdesk.
Add Remote Desktop Services Role
1. Connect to your Windows VPS / Dedicated Server via Remote Desktop.
2. Click the Start button, then right-click on Computer and select the Manage option. This will launch the Server Manager window.
3. At the Server Manager window, expand the Roles and select the Add Roles button from the right-hand pane.
4. At the welcome page of Add Roles Wizard, click the Next button.
5. From the Roles list, check the Remote Desktop Services checkbox and click Next.
6. Select the necessary services you wish to install on the next screen. For Remote Desktop CAL, only Remote Desktop Session Host and Remote Desktop Licensing services are required. Check respective checkboxes and click Next.
7. Click the Next button at the Application Compatibility stage. At the Authentication Method stage, select the "Do not require Network Level Authentication" radio button and click the Next button.
8. At Licensing Mode stage, keep Configure Later radio button checked and click the Next button. Click Next at the User Groups stage. 
9. At the Client Experience stage, select the required Audio and Video playback options and click Next.
10. At the Confirmation stage, click the Install button. This will launch the installation of the Remote Desktop role with selected services.
11. At the Progress stage, installation progress will be shown. On successfully installing the Remote Desktop role, close the wizard and reboot the server.
Activate the CAL license