Information Technology Reference
In-Depth Information
CHAPTER 10
Understanding CUCM Dial-Plan
Elements and Interactions
Chapter 9, “Managing Endpoints and End Users in CUCM,” discussed the administration
of IP Telephony endpoints and users in Cisco Unified Communications Manager (CUCM).
This chapter reviews the components, behaviors, and interactions of the CUCM dial-plan.
The “Do I Know This Already?” quiz allows you to assess whether you should read this
entire chapter or simply jump to the “Exam Preparation Tasks” section for review. If you
are in doubt, read the entire chapter. Table 10-1 outlines the major headings in this chapter
and the corresponding “Do I Know This Already?” quiz questions. You can find the an-
swers in Appendix A, “Answers Appendix.”
Table 10-1
Understanding CUCM Dial-Plan Components
Foundation Topics Section
Questions Covered in This Section
CUCM Call Flows
1-3, 6-9
CAC and AAR
4-5
Class of Control
10-12
1.
Which two of the following are reasons to eliminate IP phone reliance on DNS?
a.
Elimination of additional licensing costs for Cisco Unified DNS Server
b.
Elimination of single point of failure
c.
Reduce delay caused by name resolution lookups
d.
Eliminate delays caused by ARP resolution
2.
Which of the following is true regarding call flows in CUCM? (Choose two.)
a.
Signaling traffic using RTP is sent directly to the CUCM from the IP phone.
b.
Signaling traffic using SCCP/SIP is sent directly to the CUCM from the IP phone.
c.
Voice bearer stream traffic flows through the CUCM server to maintain QoS policy.
d.
Voice bearer stream traffic flows direct from phone to phone.
