Exam 210-060 Question id=1240 Configure Voice Messaging and Presence

In Cisco Unified Communications Manager Native Presence, what two things is a watcher monitoring in real time? 

A. Registration status of a specific IP phone
B. Registration status of the hunt group
C. Registration status of the MGCP gateway
D. Registration status of Cisco Extension Mobility of the IP phone
E. Status of a registered directory number

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