VOIP: Usage and Implementation

1
VOIPUsage and Implementation

• By
• Wayne Yee
• 4/3/2007

2
Outline

• Introduction
• Reference Model
• Usage
• Conclusion

3
Introduction

• VoIP Voice Over Internet Protocol
• Transfers voice through the Internet
• Slowly replacing pure PSTN (Public Switched
  Telephone Network)
• Portability of telephone services

4
Introduction

• Uses packets to move the voice data part through
  the Internet
• Does not use TCP but UDP instead
• Examples Skype, MoIP, TELTECHNET, GoogleTalk?

5
Reference Model
6
Implementations
7
Conclusion

• VoIP uses datagram method
• Many applications and features
• Hybrid PSTN and VoIP possible
• Biggest issue delays

8
References

• Communications of the ACM http//portal.acm.org.
  proxy.lib.odu.edu/citation.cfm?id502271collACM
  dlACMCFID18949056CFTOKEN87071278
• You Dont Know Jack about VoIP
• http//portal.acm.org.proxy.lib.odu.edu/citation.
  cfm?id1028895collACMdlACMCFID18949056CFTOK
  EN87071278
• Wikipedia
• http//en.wikipedia.org/wiki/Voip