VoIP Rami Al-Rihawi  Abdulmunim Kelzieh
Outlines: <ul><li>Introduction </li></ul><ul><li>History (1876 – 2008) </li></ul><ul><li>Type of VoIP's </li></ul><ul><li>...
Introduction   <ul><li>VoIP stands for Voice over internet protocol. </li></ul><ul><li>VoIP convert the voice signals from...
The History <ul><li>There are two fundamental technologies that are necessary for the existence of VoIP. </li></ul><ul><ul...
What Happened In 1876? <ul><li>The telephone was invented in 1876.   </li></ul>
What Happened In 1878?   <ul><li>In 1878, the first regular telephone exchange was established. </li></ul>
What Happened In 1889? <ul><li>In 1889, the switch that could connect one line to any of 100 lines by relay and slider was...
What Happened In 1943? <ul><li>In 1943, Dr. Shannon published “A Mathematical Theory Of Communication” which promoted the ...
What Happened In 1963? <ul><li>In 1963, AT&T used Dr. Shannon’s idea and created “touch tone” dialing.  </li></ul>
What Happened In 1968? <ul><li>In 1968, the internet was first developed by ARPANET. </li></ul>
What Happened In 1972? <ul><li>In 1972, the Internet protocol was invented. </li></ul>
What Happened In 1989? <ul><li>In 1989, a group of research at CERN created hyper test transfer markup language. </li></ul>
What Happened In 1995? <ul><li>In 1995, VoIP was started by small company in Israel.  </li></ul>
What Happened In 1998? <ul><li>In 1998, some entrepreneurs started to market PC-to-Phone and Phone-to-Phone. </li></ul>
“Flavors” of VoIP <ul><li>ATA </li></ul><ul><li>IP Phones </li></ul><ul><li>Computer-to-computer </li></ul>
ATA
IP Phones <ul><li>Skype phones: </li></ul>
IP Phones <ul><li>Other Wi-Fi Phones: </li></ul>
IP Phones <ul><li>Skype doesn’t only provide the software, it also produces IP Phones. </li></ul><ul><li>You can call and ...
Software based on VoIP <ul><li>Skype (most common)  </li></ul><ul><li>Msn Messenger </li></ul><ul><li>Yahoo! Messenger </l...
VoIP Challenges <ul><li>Available bandwidth </li></ul><ul><li>Network Latency </li></ul><ul><li>Packet loss </li></ul><ul>...
Advantages of VoIP <ul><li>It’s relatively affordable. </li></ul><ul><li>It’s easy to set-up. </li></ul><ul><li>You can us...
Disadvantages of VoIP <ul><li>You can’t make Emergency calls. </li></ul><ul><li>It’s susceptible to worms, viruses and hac...
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Presentation (my class presentation)

  1. 1. VoIP Rami Al-Rihawi Abdulmunim Kelzieh
  2. 2. Outlines: <ul><li>Introduction </li></ul><ul><li>History (1876 – 2008) </li></ul><ul><li>Type of VoIP's </li></ul><ul><li>IP Phones </li></ul><ul><li>Software based on VoIP </li></ul><ul><li>VoIP Challenges </li></ul><ul><li>Advantages of VoIP </li></ul><ul><li>Disadvantages of VoIP </li></ul>
  3. 3. Introduction <ul><li>VoIP stands for Voice over internet protocol. </li></ul><ul><li>VoIP convert the voice signals from telephone into digital signals that travel over the net . </li></ul>
  4. 4. The History <ul><li>There are two fundamental technologies that are necessary for the existence of VoIP. </li></ul><ul><ul><li>The first, most widely used, is the telephone. </li></ul></ul><ul><ul><li>The second technology is the internet. </li></ul></ul>
  5. 5. What Happened In 1876? <ul><li>The telephone was invented in 1876. </li></ul>
  6. 6. What Happened In 1878? <ul><li>In 1878, the first regular telephone exchange was established. </li></ul>
  7. 7. What Happened In 1889? <ul><li>In 1889, the switch that could connect one line to any of 100 lines by relay and slider was invented. </li></ul>
  8. 8. What Happened In 1943? <ul><li>In 1943, Dr. Shannon published “A Mathematical Theory Of Communication” which promoted the concept of communication in binary code. </li></ul>
  9. 9. What Happened In 1963? <ul><li>In 1963, AT&T used Dr. Shannon’s idea and created “touch tone” dialing. </li></ul>
  10. 10. What Happened In 1968? <ul><li>In 1968, the internet was first developed by ARPANET. </li></ul>
  11. 11. What Happened In 1972? <ul><li>In 1972, the Internet protocol was invented. </li></ul>
  12. 12. What Happened In 1989? <ul><li>In 1989, a group of research at CERN created hyper test transfer markup language. </li></ul>
  13. 13. What Happened In 1995? <ul><li>In 1995, VoIP was started by small company in Israel. </li></ul>
  14. 14. What Happened In 1998? <ul><li>In 1998, some entrepreneurs started to market PC-to-Phone and Phone-to-Phone. </li></ul>
  15. 15. “Flavors” of VoIP <ul><li>ATA </li></ul><ul><li>IP Phones </li></ul><ul><li>Computer-to-computer </li></ul>
  16. 16. ATA
  17. 17. IP Phones <ul><li>Skype phones: </li></ul>
  18. 18. IP Phones <ul><li>Other Wi-Fi Phones: </li></ul>
  19. 19. IP Phones <ul><li>Skype doesn’t only provide the software, it also produces IP Phones. </li></ul><ul><li>You can call and instant message Skype-to-Skype from your mobile – free. </li></ul><ul><li>In order to call mobile phones or landlines you need to buy Skype credit. </li></ul>
  20. 20. Software based on VoIP <ul><li>Skype (most common) </li></ul><ul><li>Msn Messenger </li></ul><ul><li>Yahoo! Messenger </li></ul><ul><li>AIM </li></ul><ul><li>ICQ </li></ul>
  21. 21. VoIP Challenges <ul><li>Available bandwidth </li></ul><ul><li>Network Latency </li></ul><ul><li>Packet loss </li></ul><ul><li>Jitter </li></ul><ul><li>Echo </li></ul><ul><li>Security </li></ul><ul><li>Reliability </li></ul>
  22. 22. Advantages of VoIP <ul><li>It’s relatively affordable. </li></ul><ul><li>It’s easy to set-up. </li></ul><ul><li>You can use it anywhere in the world, you don’t need a special Operator, all you need is the internet connection. </li></ul>
  23. 23. Disadvantages of VoIP <ul><li>You can’t make Emergency calls. </li></ul><ul><li>It’s susceptible to worms, viruses and hacking, although this is a very rare and VoIP developers are working on VoIP encryption to counter this. </li></ul>

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