Documentation Resources
The following page lists the documentation resources that are available for Cisco Hosted Collaboration Solution Release 12.5: https://www.cisco.com/c/en/us/support/unified-communications/hosted-collaboration-solution-version-12-5/model.html
You can also search Cisco Hosted Collaboration Solution Release 12.5 documentation through the Cisco Collaboration Knowledge Portal at https://collabkp.cisco.com/.
Finally, you can find the Cisco Hosted Collaboration Solution Ordering Guide on this page: https://www.cisco.com/c/en/us/partners/tools/collaboration-ordering-guides.html