Information Technology Reference
In-Depth Information
CHAPTER 6
Understanding the CME Dial-Plan
Connecting a voice gateway to another voice network is similar to connecting a router to a
data network: Plugging in the cable is the smallest part of the configuration! After the
physical connections are in place, the configuration begins. Instead of routing tables,
voice gateways build the logical dial-plan through a system of dial peers. This chapter ex-
plores the configuration and testing of dial peers in a voice environment.
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 6-1 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 6-1
“Do I Know This Already?” Foundation Topics Section-to-Question Mapping
Foundation Topics Section
Questions Covered in This
Section
Configuring Physical Voice Port Characteristics
1-2
Understanding and Configuring Dial Peers
3-6
Understanding Router Call Processing and Digit
Manipulation
7-9
Understanding and Implementing CME Class of
Restriction
10
Quality of Service
11
1.
Which of the following interface types would you use to connect an analog fax
machine to the VoIP network?
a.
FXS
b.
FXO
c.
E&M
d.
BRI
