Google can be your best Friend here, you would find many documentations. Go tho the Unity connection and on the page where you get all these options for Pin settings. Click on Help >> this page, It will give you detailed explanation on this.Simple th...

Could you check the connectivity between UCM and NTP server ? Also be advised that the windows as an NTP server is not supported for UC As the diagnostic test simply tells that it failed, so maybe the connectivity issue.    HTH

Just an update so that whosoever faces this issue could get this fixed ########## Analyzed Cisco MediaSense API service" and "Cisco MediaSense Storage Management Agent traces in my scenario it was, CONVERT_SESSION_ERROR. After working with TAC got to...

Check this and hope this would help  https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/im_presence/configAdminGuide/12_0_1/cup0_b_config-admin-guide-imp-1201/cup0_b_config-admin-guide-imp-1201_chapter_011001.html#CUCM_RF_A8F08672_00   Verify t...

Can you check if your CUC is in Split brain or not ? Run the command show CUC cluster. If it is in split brain condition, then this needs to be fixed first.  By default Connection Database Proxy service is disabled. It is not a critical service for a...