PRESENTATIONON

IP-telephony PRESENTERS:-

Meena dogra Samandeep

kaur Sukhpreet

kaur04/10/23 1

IP-TelephonyIP-Telephony is the method of

routing voice through the internet or any other IP-based network.

The data is transmitted through a packet-switched network.

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Types of networks in IP-telephonyAccess number Dial inward dialing.

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Ways of communication Communication using IP

telephony is possible using four ways. • Computer to Computer• Computer to Telephone• Telephone to Computer• Telephone to Telephone

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Types of IP-telephony

ATAIP PhonesComputer-to-computer

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Requirements GatewaysIP phonesMicroprocessorInternet connectionSound card Speakers

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VOIP componentsIP PBXEnd user devices• VOIP Phones• Softphones

VOIP gatewaysIP network

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Circuit switching

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Packet switching

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How VOIP works

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SIP PhonesIntermediate serverCodec

Advantages of IP-telephonyIP-telephony has many advantages

over the circuit-switched telephone network.• Cost• Functionality and Mobility• Eliminate phone wiring.

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Disadvantages of IP-telephonyFirewallsUDP ReliabilitySecurity

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Conclusion

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Referenceshttp://

electronics.howstuffworks.com/ip-telephony3.htm

http://en.wikipedia.org/wiki/Voiphttp://www.cisco.com/en/US/

tech/tk652/tk701/technologies_white_paper09186a008009294d.shtml

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