In order for Cisco Unified Presence to show the presence status of an IP phone, which two configuration steps must be completed in the Cisco Unified Communications Manager server? (Choose two.)

There is no 'Allow Presence Status' check box in the standard CUCM end user or device configuration for enabling basic IP phone presence status.

Associating the end device (IP phone) with the user in CUCM allows the Presence engine to map device state events to a specific user identity, which is a prerequisite for publishing phone availability.

A SIP publish trunk is used for integrating external presence sources, not for enabling built-in IP phone status monitoring within CUCM and Cisco Unified Presence.

Associating the directory number with the user links the watched phone line to the user's presence record, enabling Cisco Unified Presence to correlate call activity on that DN to the correct user and publish accurate status.

The Cisco Unified Personal Communicator status flag relates to the softclient application's presence capabilities, not to IP phone device presence status visibility.