A user is using Cisco Jabber as an IM & Presence client. Which Cisco Unified Communication Manager contact source can an administrator configure?

DHCP is a network-layer protocol for dynamic IP address assignment and has no role as a contact source within Cisco Unified Communications Manager for any Jabber functionality.

UDS (User Data Service) is a CUCM REST-based directory contact source used for enterprise contact lookups, but it is not the contact source associated with the IM and Presence Service specifically.

XMPP (Extensible Messaging and Presence Protocol) is the native protocol of the Cisco Unified CM IM and Presence Service and serves as the contact and presence source for Jabber IM clients. An administrator configures XMPP within the IM and Presence Service to provide Jabber users with real-time presence status and instant messaging contact data sourced directly from the CUCM deployment.

JBoss is a Java EE application server platform and is not a configurable contact source option within Cisco Unified Communications Manager.