Information Technology Reference
In-Depth Information
CHAPTER 14
Voice and Video Design
The designs of enterprise voice networks are migrating from the traditional use of Private
Branch Exchange (PBX) switches to the use of IP telephony architectures such as Cisco
Unified CallManager. Enterprise networks now have to be designed with IP telephony in
mind. This chapter reviews public switched telephone network (PSTN) and PBX voice net-
works, converged multiservice networks, IP telephony (IPT) design, and quality of service
(QoS) for IPT networks.
The “Do I Know This Already?” quiz helps you identify your strengths and deficiencies in
this chapter's topics.
The ten-question quiz, derived from the major sections in the “Foundation Topics” portion
of the chapter, helps you determine how to spend your limited study time.
Ta ble 1 4 -1 outlines the major topics discussed in this chapter and the “Do I Know This Al-
ready?” quiz questions that correspond to those topics.
Ta b l e 1 4 -1
“Do I Know This Already?” Foundation Topics Section-to-Question
Mapping
Foundation Topics Section
Questions Covered in This Section
Tradit ional Voice A rchitec t ure s
5, 9
Converged Multiservice Networks
1, 2, 3, 4, 6, 7
IPT Design
8, 10
1.
Which International Telecommunication Union (ITU) standard provides a framework
for mult imedia protocols for the t ran s por t of voice, v ideo, and data over packet-
switched networks?
a.
Session Initiation Protocol (SIP)
b.
Vo i c e o v e r I P ( Vo I P )
c.
H.323
d.
We i g h t e d f a i r q u e u i n g ( W F Q )
