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  • Business plan, east carolina university http://voip.internet2.edu/meetings/slides/200310/ECU_VoIP_Business_Plan200303.pdf
  • PPT

    1. 1. Emerging Technologies 1 March 2006
    2. 2. Agenda <ul><li>Assignments </li></ul><ul><li>Recap </li></ul><ul><ul><li>More on digital divide in the US </li></ul></ul><ul><li>Lecture </li></ul><ul><li>Discussion Leaders </li></ul><ul><li>Lab </li></ul>
    3. 3. Assignments <ul><li>Paper due Friday </li></ul><ul><li>Presentation order (M/W) online </li></ul><ul><ul><li>Max five minutes! </li></ul></ul><ul><ul><li>Send me files early and I will upload to main computer </li></ul></ul>
    4. 4. Recap <ul><li>Access is only part of the Digital Divide story </li></ul><ul><ul><li>Although most of the DD story is outside our borders, it’s not just outside </li></ul></ul><ul><li>Look at these data from Pew : </li></ul><ul><ul><li>Broadband @ Home: </li></ul></ul><ul><ul><ul><li>Rural: 24% adults </li></ul></ul></ul><ul><ul><ul><li>Suburban/Urban: 39% adults </li></ul></ul></ul>
    5. 5. Emerging Technologies <ul><li>Nature of bits puts pressure on many sectors of society </li></ul><ul><ul><li>Sometimes the pressure is referred to as “convergence” </li></ul></ul><ul><li>The latest sector is telephony </li></ul>
    6. 6. POTS <ul><li>Mature technology </li></ul><ul><li>Dedicated voice network </li></ul><ul><li>End-to-end guaranteed bandwidth </li></ul><ul><ul><li>Exception: disasters </li></ul></ul><ul><li>Reasonably good security </li></ul><ul><li>Meets 9-1-1 regulatory requirements </li></ul>
    7. 7. What is VoIP? <ul><li>VoIP (Voice over Internet Protocol) is a way to first digitize voice and then encapsulate it into packets before transmitting over a (non-voice) packet-switched IP network. </li></ul><ul><li>It is sometimes called “internet telephony” </li></ul>
    8. 8. Differences (1/2) <ul><li>Packet-switching versus circuit-switching </li></ul><ul><ul><li>“Internet” technology allows several calls to use the same bit of bandwidth, because the bandwidth is not dedicated </li></ul></ul><ul><li>This is possible because our voice is “digitized” and then that file is broken into small packets (bundles of bits) </li></ul>
    9. 9. Differences (2/2) <ul><li>Power requirements </li></ul><ul><ul><li>POTS corded phone works when the power goes out. (Cordless does not! Neither does VoIP.) </li></ul></ul><ul><li>Telephone line is multi-use infrastructure </li></ul><ul><ul><li>Some people use it for broadband (DSL) </li></ul></ul><ul><ul><li>Security systems, DVRs (Tivo, RePlay) “phone home” on it </li></ul></ul><ul><li>9-1-1 </li></ul>
    10. 10. Locked to Computer? <ul><li>No! Businesses already using </li></ul><ul><li>No! Homeowners already using </li></ul><ul><li>Computer-to-phone: Skype and (soon?) Microsoft/MCI </li></ul><ul><li>“ Portable ” VoIP phones use wi-fi networks </li></ul><ul><ul><li>Who provides “hot-spots”? Mostly telephone companies (AT&T, Verizon, Cingular etc.) </li></ul></ul>
    11. 11. PC World , Feb 2006: <ul><li> My People is an Internet phone service provider with a cute name and features like wake-up calls and voice dialing . EQO is a mobile-phone app with a hard-to-pronounce name (actually, it's easy once you know, but it's &quot;echo&quot;--not &quot;E Q O&quot;) that lets you place and receive Skype calls. Chili is a wireless gadget from a company with a weird name (ZinkKat) which is designed to let teenagers make VOIP calls, listen to music stored on a PC, and hear text-to-speech versions of RSS feeds--but the demo made it a bit difficult to figure out what exactly was going on. </li></ul>
    12. 12. VoIP : The New Phone <ul><li>Subscribers end of 2005: 4.5 – 5.1 million </li></ul><ul><li>Subscribers end of 2006: 7.9 million </li></ul><ul><li>US Households by 2010: 115 million </li></ul>
    13. 13. Discussion Leaders <ul><li>Group 5 </li></ul>
    14. 14. Exercise: <ul><li>See if service is available at your current address and determine the cost of service at Vonage and Speakeasy.net </li></ul><ul><ul><li>Keep your current number (why?) </li></ul></ul><ul><ul><li>Make sure equipment costs are included </li></ul></ul>
    15. 15. Questions: <ul><li>Despite of all the cool features and great rates of VoIP, what are the factors that may prevent people from NOT going to VoIP in the household? </li></ul><ul><li>Do you think the impacts of VoIP on society are positive or negative? And why? </li></ul><ul><li>How will VoIP change the landscape in how we communicate throughout the world? </li></ul><ul><ul><li>What about those caught in the digital divide – will they be left behind? </li></ul></ul>
    16. 16. Summary (1/4) <ul><li>Digital technologies are transforming society at many different levels </li></ul><ul><li>Characteristics of new media are disruptive </li></ul><ul><ul><li>“ Zeros and Ones” </li></ul></ul><ul><ul><li>Modularity </li></ul></ul><ul><ul><li>Transcoding (tech layer & cultural layer) </li></ul></ul><ul><li>Impacts on time/space </li></ul>
    17. 17. Summary (2/4) <ul><li>Nevertheless, “new” media are more evolutionary than revolutionary </li></ul><ul><li>The growth in new media communication has led to info overload </li></ul><ul><ul><li>How do we determine credibility? </li></ul></ul><ul><ul><li>Who/what used to do this for us? </li></ul></ul>
    18. 18. Summary (3/4) <ul><li>Network effects </li></ul><ul><ul><li>Can affect adoption of new (exclusive) technology </li></ul></ul><ul><ul><li>Value of network increases exponentially with the size of the network </li></ul></ul><ul><ul><li>New forms of organization </li></ul></ul><ul><li>Impacts on media, politics </li></ul><ul><ul><li>“Emergent democracy”? </li></ul></ul>
    19. 19. Summary (4/4) <ul><li>But Many/Most are being left behind </li></ul><ul><ul><li>What is our responsibility to them? </li></ul></ul><ul><li>We live in a privileged place in time </li></ul>
    20. 20. Lab <ul><li>Help with projects, website, PPTs </li></ul><ul><ul><li>Help your neighbor? </li></ul></ul>