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Which two SCCP call signaling messages are sent by an IP phone to Cisco Unified Communications Manager? (Choose two.)
Correct Answer: A,B
Explanation/Reference: Explanation:This message indicates which soft key was pressed. Upon receipt of this mesage,CallManagerinvokesthe action associated with thepressed soft key. For example, if Holdwas the pressed soft key,CallManager places the active call on user hold.In some trace files you might see a soft key number without the corresponding description. The following list defines each soft key number.