Designing and Deploying Cisco Unified IM and Presence

[Fahad Zamal]

CUCM offers very limited native presence functionality on IP phones. Although a Cisco Unified Communications IM&P server is not required in this simple example, only these native presence features of the CUCM are available:

CUCM speed-dial presence: CUCM administratively supports the ability for a speed dial to have presence capabilities via a BLF speed dial. BLF speed dials work as both a speed dial and a presence indicator.
CUCM call history presence: CUCM administratively supports presence capabilities for call lists and directories on the phone.
CUCM presence policy: CUCM provides the capability to set policy for users who request presence status.

Source: https://www.informit.com/articles/article.aspx?p=2471644