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Voice over IP (VoIP). Hani Al Ruwaili 221942 - Abdulkrem Al Zhrani 232701. Prepared for Dr. Samir Ghadhban. What is VoIP ?. It is the technology that allows us to have phone service over the Internet. VoIP Protocol & OSI Layers. Application Layer. Soft Phone ( Skype,Net2phon ) Audio card

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Voice over ip voip l.jpg

Voice over IP(VoIP)

Hani Al Ruwaili 221942 - Abdulkrem Al Zhrani 232701

Prepared for

Dr. Samir Ghadhban


What is voip l.jpg
What is VoIP ?

  • It is the technology that allows us to have phone service over the Internet.



Application layer l.jpg
Application Layer

  • Soft Phone ( Skype,Net2phon )

  • Audio card

  • Firewall OFF


Presentation layer l.jpg
Presentation Layer

  • Codecs

    • PSTN – PCM (Pulse Code Modulation)

    • VoIP compression

    • Free Codecs (speex,GSM)


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Session Layer

  • Session Initiation Protocol (SIP)

    • Authentication

    • Communication type

    • Take care of IP addresses and ports numbers while transmitting data


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Transport Layer

  • Real Time Protocol

    • Monitors the quality of the data distribution and provides control information

    • RTP header compression saves bandwidth by compressing packet headers

    • Provides a separate flow from RTP for UDP transport use


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VoIP Hardware

  • Soft Phone

  • VoIP telephones 100~300 $

    • Bandwidth

    • Friendly Interface (WAP)

    • Audio Port

  • PSTN interface cards

  • Analogue Telephone Adaptors (ATA)




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Quality of Service

  • Latency (Delay)

    • High Priority

  • Jitter

    • Jitter Buffer


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Conclusion

  • For people who adopting communications with, VoIP can save on infrastructure costs


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THANK YOU

Questions any one ?


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