International Engineering Consortium
Web ProForums
Home / On-Line Education / Web ProForums
Understanding Packet Voice Protocols
Sponsored by:
Cisco Systems

Table of Contents:
Definition and Overview
1. The Great Voice Myth
2. Making Sense of the VoIP Standards
3. Understanding Centralized and Distributed Architectures
4. H.323
5. MGCP/H.248/MEGACO
6. SIP
7. Interconnecting VoIP Protocols
8. Conclusion: Packet Voice and VoIP Is About Services, Not Protocols
Self-Test
Glossary
Download PDFPDF of this tutorial
Self-Test
1. The total amount of traditional voice (circuit-switched) traffic is greater than the total amount of packet-based network traffic on public networks.
a. True
b. False
2. The IETF and ITU have agreed on a single VoIP protocol for all networks.
a. True
b. False
3. The IETF defines which VoIP protocols?
a. SIP and MGCP
b. H.323 and H.248
c. MGCP only
d. SIP and H.323
4. What is the standard protocol for Fax-Relay, used by SIP, H.323, and MGCP?
a. T.39
b. T.38
5. SIP is the most widely used protocol in VoIP networks today.
a. True
b. False
6. Service providers should look for VoIP vendors that provide which of the following?
a. Support for standard VoIP protocols
b. Support for multiprotocol VoIP networks
c. Support for end-to-end interoperability of all VoIP protocols
d. None of the above
e. All of the above
7. Distributed architectures are associated with the H.323 and SIP protocols.
a. True
b. False
8. H.248 and MEGACO are the same protocol.
a. True
b. False
9. Which are characteristics of centralized architectures? (select all correct answers)
a. Intelligent endpoints
b. Features deployed on a call agent
c. Easily replicates TDM features
d. Works best when using the H.323 protocol
10. Which are characteristics of distributed architectures? (select all correct answers)
a. Uses H.248 or MEGACO
b. Uses SIP or H.323
c. Uses gatekeepers for call routing
d. Dumb endpoints
Glossary >>

Copyright © 2007 International Engineering Consortium
Terms of Use | Privacy Statement | Site Map
Registered Users
Enjoy exclusive access to free On-Line Education and receive the biweekly IEC newsletter.
IEC Newsletter
Get the latest industry information including critical insights from key industry leaders, technology briefings, and an Analyst Corner.
Current
Subscribe
Newsroom
IEC News
June 04, 2008
Top Broadband Innovations in Asia-Pacific Recognized with IEC Announcement of 2008 InfoVision Finalists
April 30, 2008
IEC and Convergence World Magazine Announce Top NGN Innovators at SOFNET 08 in London
April 22, 2008
Excellence, Innovation and Leadership Recognized as IEC and Convergence World Announce 2008 Awards Finalists
IEC on Radio
IEC on radio Tele-Semana, commentary on NXTComm 2007 and future IEC programming.
IEC on TV
CCTV Highlights Broadband World Forum Asia 2007
BBWF Asia Comes to China

View all Press Releases
On-line Press Kit
IEC Corporate Member
Advertising Kit
Overview
IEC.org Web Banner Ads
Event Web Banner Ads
E-Newsletters
Exhibit Preview
TecPreview