1. Voice over Internet Protocol (VoIP) MIS 304 December 3, 2009 Presented by group 7 : Cassie Macapinlac, Jolly Phan Thomas Cooper, Kyoung In Kim, Norinao Haruna

2. 1. Introduction 2. History of VoIP 3. Background Information 4. Benefits of Using VoIP 5. Business Culture and VoIP 6. Challenges of VoIP 7. Conclusion

3. Introduction Introduction Voice over Internet Protocol (VoIP)Voice over Internet Protocol (VoIP) A technology that helps communications which allows consumers to make and receive phone calls over broadband internet connections instead of using typical analog telephone landlines such as PSTN.

4. History History 1995- Vocaltec, Inc. introduced its Internet Phone software.1995- Vocaltec, Inc. introduced its Internet Phone software. 2000- Networking manufacturers introduce equipment to routes and switches VoIP traffic.2000- Networking manufacturers introduce equipment to routes and switches VoIP traffic. 2004- Commercial VoIP services were provided over broadband internet access as a major development.2004- Commercial VoIP services were provided over broadband internet access as a major development. 2009- 256 million users of VoIP around the world.2009- 256 million users of VoIP around the world.

5. How It Works How It Works

6. Analog Telephone Adapter (ATA)Analog Telephone Adapter (ATA) VoIP phonesVoIP phones Computer-to-ComputerComputer-to-Computer

7. Analog to digital converter that allows you to connect standard phones to your computer or your internet connection.Analog to digital converter that allows you to connect standard phones to your computer or your internet connection.

8. VoIP Phones Which looks like an ordinary corded or cordless telephone and is dedicated as an actual phone that allow calls without using the computerWhich looks like an ordinary corded or cordless telephone and is dedicated as an actual phone that allow calls without using the computer

9. Installed software on a computer which allows VoIP calling without a dedicated hardware.Installed software on a computer which allows VoIP calling without a dedicated hardware.

10. Benefits of VoIP Benefits of VoIP Save money and cost efficient Integration with audio, data, and video applications Flexibility Ability to choose our own area codes Offer features for free

11. Save money and cost efficientSave money and cost efficient Using VoIP, a lot cheaper than our normal landline telephone cost, be it short or long distance calls. (for use of both residence and business (for use of both residence and business ) Benefits of VoIP Benefits of VoIP

12. Integration with Audio, Data, andIntegration with Audio, Data, and Video Applications Video Applications we can save more money and energy by using our phone while accessing all our other programs and surf the Internet at the same time Benefits of VoIP Benefits of VoIP

13. FlexibilityFlexibility We can take our VoIP Adaptors anywhere and use our number anywhere there's an Internet connection (Travelling overseas, staying in hotels, etc..) Benefits of VoIP Benefits of VoIP

14. Ability to choose our own area codesAbility to choose our own area codes By having the ability to choose our own area code, th ey are able to call us and will be charged as a local ca ll (they don’t have to pay for long distance charges). Benefits of VoIP Benefits of VoIP

15. Offer Features for FreeOffer Features for Free Features that typically cost extra with normal phones are bundled with VoIP. (features: Voice Mail, Call Forwarding, Call Waiting) Benefits of VoIP Benefits of VoIP

16. CultureCulture Development or improvement of education or training. Business CultureBusiness Culture Refers to the punctuality, risk, power distance, making decisions, and Business Contacts of the organization. Refers to the punctuality, risk, power distance, making decisions, and Business Contacts of the organization.

17. Virtual workVirtual work “Work performed away from the traditional physical workplace by means of information technology.” “Work performed away from the traditional physical workplace by means of information technology.”

18. VoIP affects distant communication in the business world to a more meaningful and timely direction, making the business culture communication, power distance, decision making seemingly more leisurely.VoIP affects distant communication in the business world to a more meaningful and timely direction, making the business culture communication, power distance, decision making seemingly more leisurely.

19. Advancing Technology Makes lives, in the business world, easier.Advancing Technology Makes lives, in the business world, easier. There is no long distance fees for calls either!There is no long distance fees for calls either!

20. Communication brings two people together, one conveys a message and the other interprets it.Communication brings two people together, one conveys a message and the other interprets it. Emails are broad and do not convey a interactive message.Emails are broad and do not convey a interactive message. VoIP does conveyVoIP does convey a meaningful, a meaningful, interactive, imely, interactive, imely, and relevant message.

21. Level of service quality Level of service quality  Data travels with fixed maximum capacity -Prone to congestion & Denial-of-Service Attacks  Quality of Service (QoS) - Jitter - Latency  Possible counterattacks? -Teletraffic engineering -Teletraffic engineering - Multi-path routing - Multi-path routing

22. Bandwidth DifferenceBandwidth Difference  Bandwidth Range of frequencies through which data is transmitted. Often associated with “connection speed.”  Greater connection speed, better the quality  No internet, no phone line - Annoying at home -Catastrophic for business

23.  Shared connection - Multiple users = difficult to provide to adequate - Bandwidth all the time  Solution? -Minimize Internet connection usage for things other than VoIP during conversations. than VoIP during conversations.

24. Power DifferencesPower Differences  Susceptible to Power Failures - Modems, routers, ATA or other VoIP hardware require electric power supplies to work require electric power supplies to work - Power interruptions mean no service!  Possible solution? - Use customer premise equipment (like cable modems) with battery-backed power supplies - Assures uninterrupted service for up to several hours

25. Security issueSecurity issue  Susceptible to attack like any other internet-connected device  Hackers can -Institute denial-of-service attacks -Institute denial-of-service attacks -Harvest customer data -Harvest customer data -Record conversations -Record conversations -Break into voice mailboxes -Break into voice mailboxes

26.  Many do not support encryption -Relatively “easy” to eavesdrop on VoIP calls and even -Relatively “easy” to eavesdrop on VoIP calls and even change their content change their content  Possible solutions? To protect confidential & classified conversations: To protect confidential & classified conversations: -Voice over Secure IP (VoSIP) -Voice over Secure IP (VoSIP) -Secure Voice over IP (SVoIP) -Secure Voice over IP (SVoIP) -Secure Voice over Secure IP (SVoSIP) -Secure Voice over Secure IP (SVoSIP)

27. Emergency callEmergency call  No relationship between IP address and physical location and physical location -Address reveals no useful information for emergency -Address reveals no useful information for emergency services. services. -Cannot easily be routed to a nearby call center -Cannot easily be routed to a nearby call center  IP addresses - Dynamically assigned -ISP allocates an address for online access or the time a broadband router is engaged. -ISP recognizes individual IP addresses, but not the corresponding physical location

28.  Possible solution? -Use a database to find that user and the physical -Use a database to find that user and the physical address the user chose to associate with that telephone address the user chose to associate with that telephone number—imperfect solution. Ex: VoIP Enhanced 911 number—imperfect solution. Ex: VoIP Enhanced 911

29. Legal issueLegal issue  Issues about Foreign Intelligence Surveillance Act  National Security Agency (NSA)  Federal Communications Commission (FCC)  Some places have banned ALL VoIP technologies

31. Question & Comments???