When you integrate Cisco Unified Communications Manager and Cisco Unity Connection, which three important parameters must you configure in Unified Communications Manager? (Choose three.)

A route list groups route groups for load balancing and failover and is not a required component of the basic CUCM-to-Unity Connection SIP integration.

The SIP trunk security profile defines the security settings for the SIP trunk connection, including transport type and whether device authentication is required, and must be created before the trunk can be configured.

A SIP route pattern routes calls based on SIP URI domains rather than dialed digit strings and is not needed for standard CUCM-to-Unity Connection digit-based voicemail routing.

A route pattern in CUCM is required to match the voicemail pilot digits dialed by users and route those calls across the SIP trunk to Unity Connection.

The SIP trunk is the logical signaling link that connects CUCM to Unity Connection and must be configured with Unity Connection's IP address, port, and the appropriate security profile.

A device profile stores user-specific phone settings for Cisco Extension Mobility and has no role in establishing the CUCM-to-Unity Connection integration.