Refer to the exhibit. An engineer is integrating Cisco UCM with Cisco Unity Connection via SIP. Which two boxes should be checked to complete the configuration of the SIP trunk security profile? (Choo

Enabling application-level authorization ensures that the Cisco UCM properly authenticates the SIP messages originating from Cisco Unity Connection at the application layer, which is crucial for secure and trusted communication between these two integrated systems. This verifies that the messages come from an an authorized source within the voice infrastructure.

Enabling digest authentication on the SIP trunk security profile provides a secure method for Cisco UCM to challenge and authenticate Cisco Unity Connection using a shared secret, preventing unauthorized access and ensuring the integrity and confidentiality of the SIP signaling between the two systems. This is a common security mechanism for SIP trunks.

Accepting out-of-dialog REFER messages is typically related to specific call transfer scenarios, not a fundamental security requirement for basic UCM-CUC integration.

Accepting presence subscriptions is relevant for presence services, which are generally handled by Cisco IM and Presence, not a core requirement for UCM-CUC SIP trunk integration.

Accepting Replaces headers is used for specific call transfer or call replacement scenarios, such as when transferring a call or picking up a ringing call from another device, and is not a primary security setting for the trunk itself.