Certificates of CUCM/CUC/IM&P

[o.tasaddaq1]

Can someone explain the type of certificates we have in CUCM/CUC/IM&P and Expressway C & E?

One is tomcat certificate what are the above?

Thanks

[Jaime Valencia]

http://www.cisco.com/c/en/us/support/docs/voice-unified-communications/unified-communications-manager-callmanager/115957-high-level-view-ca-00.html

Expressways use a single certificate, there is a whole document dedicated to certificates for VCS which also covers expressways.