When Cisco United Attendant Console Advanced is integrated with Cisco UCM.

Cisco Unified Attendant Console Advanced (CUACA) integrates with Cisco Unified Communications Manager (UCM) to provide advanced call handling features for attendants. CUACA communicates directly with the Cisco CallManager Service for core call routing, call control, and call state information.

Cisco CTI Manager Service: While CTI (Computer Telephony Integration) plays a role in CUACA interactions, the core communication happens through the CallManager Service.

Cisco DirSync Service: This service synchronizes directory information between UCM and other systems, but it's not directly involved in CUACA communication.

Cisco TAPS Service: TAPS (Telephony Application Programming Services) provides a development framework for UCM, not core call routing functionalities used by CUACA.