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Voice over
Internet Protocol
 Emmanuel Robles Hernández 758457
 Jesús Uriel Soto Flores    755267
 Sergio Iván Benítez Valdez 749978




         “VoIP is not just a service, it’s a technology.”
What is VoIP?
• A Voice over IP (VoIP) system
  allows customers to send and
  receive calls over a digital
  network.

• If you are calling a regular phone
  number, the signal is converted to
  a regular telephone signal before
  it reaches the destination. VoIP
  can allow you to make a call
  directly from a computer, a
  special VoIP phone, or a
  traditional phone connected to a
  special adapter.
Brief History
• There are 3 fundamental technologies that are necessary
  for the existence of Voice over IP.
  ▫ The Telephone
  ▫ The Internet
  ▫ Transmission Control Protocol / Internet Protocol
    (TCP/IP)

• VoIP started in February of 1995 by a small company in
  Israel called Vocaltec, Inc.
• It was the first commercial Internet phone software.
• Their product, InternetPhone, allowed one user to call
  another user via their computers, a microphone and a set
  of speakers.
Brief History
• By the end of 1998 VoIP calls had yet to total 1%
  of all voice calls.
• By 2000, VoIP calls accounted for 3% and by
  2003 that number had jumped up to 25%.
How does VoIP work?
• Analog calls are converted into packets of data. The
  packets travel like any other type of data (like e-mail)
  over the public internet and/or privete IP networks.

• Using VoIP, you can call landline or cell phones. You can
  also call computer-to-computer (using a microphone or
  headsets).

• You have to ensure the best voice quality and security
  (have a private IP network) in the case that you use VoIP
  as a landline telephone (you also need an analog
  adapter).
Advantages
• VoIP calls are free from users who have the same
  access or program.

• It has a lower cost than other system calling
  services (localy speaking).

• Offers features and services that are not
  available for traditional phones.
Disadvantages
• Not all VoIP connect to emergency services.

• VoIP makes it difficult to locate network users
  geographically.

• Exposed to hacking (record coversations, break
  into voice mailboxes, etc.)
Examples
• Skype

• Google Talk

• Viber

• VoIP Buster
References
• https://docs.google.com/viewer?a=v&q=cache:rF_79j5vGTIJ:www.joehall
  ock.com/edu/pdfs/Hallock_J_VoIP_Past.pdf+History+VoIP&hl=es&gl=m
  x&pid=bl&srcid=ADGEEShtWqgR31kXdDv2meFLrcVRD9zLYrkBI5M4Pi1
  UQaL2toCgvjnX45dzioW5M5fOk74nfWjuaYVNmpXBWv1n_1TRLaCIuykz
  q5g-r-
  jojOnFpb0tPc7efGKqIBl7WIaxvRvVDJXJ&sig=AHIEtbSKySfU_vRe8NGSa
  1SxuahyNIRowA
• http://www.monografias.com/trabajos3/voip/voip.shtml
• http://transition.fcc.gov/voip/
• http://en.wikipedia.org/wiki/Voice_over_IP#Protocols
• http://www.mspmentor.net/2010/01/15/chartec-dials-up-voip-for-
  managed-service-providers/

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Vo ip

  • 1. Voice over Internet Protocol Emmanuel Robles Hernández 758457 Jesús Uriel Soto Flores 755267 Sergio Iván Benítez Valdez 749978 “VoIP is not just a service, it’s a technology.”
  • 2. What is VoIP? • A Voice over IP (VoIP) system allows customers to send and receive calls over a digital network. • If you are calling a regular phone number, the signal is converted to a regular telephone signal before it reaches the destination. VoIP can allow you to make a call directly from a computer, a special VoIP phone, or a traditional phone connected to a special adapter.
  • 3. Brief History • There are 3 fundamental technologies that are necessary for the existence of Voice over IP. ▫ The Telephone ▫ The Internet ▫ Transmission Control Protocol / Internet Protocol (TCP/IP) • VoIP started in February of 1995 by a small company in Israel called Vocaltec, Inc. • It was the first commercial Internet phone software. • Their product, InternetPhone, allowed one user to call another user via their computers, a microphone and a set of speakers.
  • 4. Brief History • By the end of 1998 VoIP calls had yet to total 1% of all voice calls. • By 2000, VoIP calls accounted for 3% and by 2003 that number had jumped up to 25%.
  • 5. How does VoIP work? • Analog calls are converted into packets of data. The packets travel like any other type of data (like e-mail) over the public internet and/or privete IP networks. • Using VoIP, you can call landline or cell phones. You can also call computer-to-computer (using a microphone or headsets). • You have to ensure the best voice quality and security (have a private IP network) in the case that you use VoIP as a landline telephone (you also need an analog adapter).
  • 6. Advantages • VoIP calls are free from users who have the same access or program. • It has a lower cost than other system calling services (localy speaking). • Offers features and services that are not available for traditional phones.
  • 7. Disadvantages • Not all VoIP connect to emergency services. • VoIP makes it difficult to locate network users geographically. • Exposed to hacking (record coversations, break into voice mailboxes, etc.)
  • 8. Examples • Skype • Google Talk • Viber • VoIP Buster
  • 9. References • https://docs.google.com/viewer?a=v&q=cache:rF_79j5vGTIJ:www.joehall ock.com/edu/pdfs/Hallock_J_VoIP_Past.pdf+History+VoIP&hl=es&gl=m x&pid=bl&srcid=ADGEEShtWqgR31kXdDv2meFLrcVRD9zLYrkBI5M4Pi1 UQaL2toCgvjnX45dzioW5M5fOk74nfWjuaYVNmpXBWv1n_1TRLaCIuykz q5g-r- jojOnFpb0tPc7efGKqIBl7WIaxvRvVDJXJ&sig=AHIEtbSKySfU_vRe8NGSa 1SxuahyNIRowA • http://www.monografias.com/trabajos3/voip/voip.shtml • http://transition.fcc.gov/voip/ • http://en.wikipedia.org/wiki/Voice_over_IP#Protocols • http://www.mspmentor.net/2010/01/15/chartec-dials-up-voip-for- managed-service-providers/