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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

Voice over IP(VoIP)

Hani Al Ruwaili 221942 - Abdulkrem Al Zhrani 232701

Prepared for

Dr. Samir Ghadhban

what is voip
What is VoIP ?
  • It is the technology that allows us to have phone service over the Internet.
application layer
Application Layer
  • Soft Phone ( Skype,Net2phon )
  • Audio card
  • Firewall OFF
presentation layer
Presentation Layer
  • Codecs
    • PSTN – PCM (Pulse Code Modulation)
    • VoIP compression
    • Free Codecs (speex,GSM)
session layer
Session Layer
  • Session Initiation Protocol (SIP)
    • Authentication
    • Communication type
    • Take care of IP addresses and ports numbers while transmitting data
transport layer
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
voip hardware
VoIP Hardware
  • Soft Phone
  • VoIP telephones 100~300 $
    • Bandwidth
    • Friendly Interface (WAP)
    • Audio Port
  • PSTN interface cards
  • Analogue Telephone Adaptors (ATA)
quality of service
Quality of Service
  • Latency (Delay)
    • High Priority
  • Jitter
    • Jitter Buffer
conclusion
Conclusion
  • For people who adopting communications with, VoIP can save on infrastructure costs
thank you
THANK YOU

Questions any one ?

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