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Implementing a Voice Over Internet (Voip) Telephony System. Final Project report Presented by: Md. Manzoor Murshed. Objectives. Voice Over IP SIP H.323 MGCP Simulation using Westplan Conclusion. Voice over IP.

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Implementing a voice over internet voip telephony system l.jpg

Implementing a Voice Over Internet (Voip) Telephony System

Final Project report

Presented by: Md. Manzoor Murshed


Objectives l.jpg
Objectives

  • Voice Over IP

  • SIP

  • H.323

  • MGCP

  • Simulation using Westplan

  • Conclusion

CprE: 550


Voice over ip l.jpg
Voice over IP

  • provide the functionality required to set up, manage, and tear down calls and connections;

  • be scalable to support a very large number of registered endpoints (in the order of billions worldwide), and a very large number of simultaneous calls (in the order of millions worldwide);

  • support network management features for policy control, accounting, billing, etc;

  • provide a mechanism to communicate and set up the Quality of Service requested by the end points;

  • be extensible to help with adding new features easily;

  • support interoperability among different vendors’ implementations, among different versions of the signaling protocol, and with different signaling protocols.

CprE: 550




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SIP COMPONENTS AND MESSAGES

  • Invite: Indicates that the user or service is being invited to participate in a session.

  • Ack: Confirms the client has received a final response to an Invite request.

  • Options: Is used to query a server about its capabilities.

  • Bye: Is sent by a User Agent Client to indicate to the server that it wished to release the call.

  • Cancel: Is used to cancel a pending request.

  • Register: Is used by a client to register an address with a SIP server

CprE: 550


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SIP COMPONENTS AND MESSAGES

  • 1xx: Informational- The request has been received and processing is continuing.

  • 2xx: Success – An Ack, which indicated that the action was successfully received, understood, and accepted.

  • 3xx: Redirection – Further action is required to process this request.

  • 4xx: Client Error – The request contains bad syntax and cannot be fulfill at this server.

  • 5xx: Server Error – The server failed (for internal reasons) to fulfill an apparently valid request.

  • 6xx: Global Failure – The request cannot be fulfilled at any server.

CprE: 550


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Architecture

CprE: 550


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PSTN

Analog Telephone

IP Telephone

Voip-PSTN

Gateway

Voip-Neowork Signaling

Inter-exchange Signaling

(SS&)

Subscriber Loop

SIgnaling

Signaling Systems and Messages

CprE: 550


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H.323 MCU

H.323 Terminal

Packet Based Network

H.323 Gatekeeper

H.323 Gateway

H.323 Terminal

H.323 Terminal

THE H.323 MULTIMEDIA STANDARD

CprE: 550



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Link Summary

CprE: 550





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Conclusion

Questions?

CprE: 550


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