Sample Question:QUESTION 1:
Which two SCCP call signaling messages are initiated by Cisco Unified Communications Manager to an IP phone? (Choose two.)
F. OffhookCorrect Answer: C,E
Explanation: Upon receiving an OpenReceiveChannel message, the I phone selects the UDP port number it wants to use to receive RTP packets and reports this
information to call manager. With the SCCP protocol architecture, the majority of the H.323 processing power resides in an H.323 proxy -- the Cisco CallManager.
The end stations (IP phones) run the Skinny client, which consumes less processing overhead. The client communicates with CallManager using connectionoriented
(TCP/IP-based) communication to establish a call with another H.323- compliant end station. Once Cisco CallManager has established the call, the two
H.323 end stations use connectionless (UDP/IP-based) communication for audio transmissions.QUESTION 2:
Which two SCCP call signaling messages are sent by an IP phone to Cisco Unified Communications Manager? (Choose two.)
F. StopToneCorrect Answer: A,BExplanation:
Explanation: This message indicates which soft key was pressed. Upon receipt of this mesage,CallManager invokesthe action associated with thepressed soft
key. For example, if Hold was 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.QUESTION 3:
Which device is the initiator of a StationInit message in a Cisco Unified Communications Manager SDI trace?
A. Cisco Unified Communications Manager
B. MGCP gateway
C. Cisco Music on Hold server
D. SCCP IP phone
E. SIP Proxy ServerCorrect Answer: DExplanation:Explanation/Reference:
Explanation: StationInit means that an inbound Transmission Control Protocol (TCP) message from a Skinny station reached CallManager. A Skinny station is any
endpoint that uses the Skinny protocol to communicate with CallManagerQUESTION 4:
Refer to the exhibit.
You received this debug output to troubleshoot a Cisco IOS MGCP gateway problem at a customer site. Which statement about this endpoint on the Cisco MGCP
gateway is true?
A. This endpoint is on a T1 Controller 0/1/0.
B. This endpoint is on an E1 Controller 0/1/0.
C. This endpoint is on a T1 Controller 0/1/1.
D. This endpoint is on an E1 Controller 0/1/2.
E. This endpoint is on an T1 Controller 0/1/2.Correct Answer: AQUESTION 5:
To which SIP response class do the SIP response codes 300 to 399 belong?
B. Client Failure
C. Server Failure
E. RedirectionCorrect Answer: E