cisco jabber for windows desktop sharing greyed out

In a hybrid cloud-based deployment, Cisco WebEx Connect provides instant messaging capabilities and Cisco Unified Communications Manager provides audio and video communication capabilities.To prevent this issue, you should ensure that user phone numbers in your directory are correct. If Cisco Jabber for Windows cannot resolve contacts by their phone numbers, video desktop sharing is available from the active call window only, not the chat window.For example, you should not attempt to enable video desktop sharing on a Cisco Jabber for Mac CSF device. You should not attempt to enable video desktop sharing, or BFCP, on a device or client that does not support BFCP.

If you configure video desktop sharing on Cisco Unified Communications Manager 8.6.1 and then upgrade to Cisco Unified Communications Manager 8.6.2, you must configure video desktop sharing on Cisco Unified Communications Manager 8.6.2. Migration of your video desktop sharing configuration is not possible.Video desktop sharing is not available in desk phone mode. As of this release, Cisco Jabber for Windows supports video desktop sharing in software phone mode only.Video desktop sharing refers to desktop sharing functionality on CSF devices on Cisco Unified Communications Manager that are BFCP-enabled.

Cisco jabber for windows desktop sharing greyed out