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SIP Trunking

SIP Trunking. Amir Alabbas Feb 4, 2014 EMAC 6300 University of Texas at Dallas. Internet Engineering Task Force.

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SIP Trunking

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  1. SIP Trunking Amir Alabbas Feb 4, 2014 EMAC 6300 University of Texas at Dallas

  2. Internet Engineering Task Force • “the IETF is an open global community of network designers, operators, vendors, and researchers producing technical specifications for the evolution of the Internet architecture and the smooth operation of the Internet.” 1

  3. What is SIP? • Session Initiation Protocol • SIP is a signaling protocol, widely used for setting up communications sessions such as: • A telephone call • Video conference • Skype • Instant messaging • Online gaming

  4. 4 Basic Tasks • Locating users and resolving their SIP address to an IP address • Negotiating capabilities and features among all session participants • Changing session parameters during the call • Managing the setup and teardown of calls for all users in the session http://www.ciscopress.com/articles/article.asp?p=664148

  5. What is VoIP? • Voice over Internet Protocol • Voice communication is transmitted through the internet as data packets through fiber-optic lines rather than analog voice through copper phone wires.

  6. SIP Trunking • SIP trunking is a broadband Internet link that utilizes SIP to connect different user endpoints through an Internet telephone service provider, replacing all traditional phone lines with VoIP

  7. Benefits of SIP http://www.avaya.com/usa/resource/assets/whitepapers/lb2337.pdf

  8. Converged Communications Without SIP With SIP http://www.avaya.com/usa/resource/assets/whitepapers/lb2337.pdf

  9. SIP Architecture • The main components of SIP: Proxy Server Redirect Server Registrar Server User Agent

  10. Proxy Server 1 4 6 5 User Agent “Tom” User Agent “Jim” 2 3 Registrar Server

  11. Local Domain Call Voice packets through RTP SIP SIGNALING SIP SIGNALING

  12. Boston L.A. New York Verizon Public side NY, Boston, LA Office side DALLAS SIP Trunk IPphonesystem LAN

  13. Why is this important for us? Geographic independence. http://www.calvaryaustin.com/let-freedom-ring/

  14. Why is this important for us? Choice of service providers. http://www.datafoundry.com/data-centers/global-colocation/

  15. Why is this important for us? Globalization – Network society expands on a global scale 2 http://www.thelifenetwork.org/about.html

  16. Why is this important for us? Efficiency and productivity http://www.ciliotech.com/efficient-communications-the-foundation-of-a-successful-business/

  17. Readings Cited • 1- Alexander Galloway “Protocol vs. Institutionalization” page 191 • 2- Manuel Castells “Afterword: why networks matter” page 222

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