Introduction to Voice Over IP

Info

Level: Beginner
Presenter: Eli the Computer Guy
Date Created: August 8, 2010
Length of Class: 60 Minutes
Tracks

Telephone Systems
Prerequisites

Introduction to Telephone Systems
Introduction to Convergence
Purpose of Class

This class discusses the basic components and requirements for a business or enterprise Voice Over IP telephone system.
Topics Covered

VoIP Servers
VoIP Clients
Gateways
Protocols
Codecs
Network Latency
QOS
Unified Communications
Class Notes

VoIP Servers
VoIP Servers route calls like a traditional PBX
There are proprietary and Open Source versions of VoIP Server software
VoIP Clients
VoIP "phones" are all client computers
Hard Phones are computers made to look like traditional phones
Soft Phones are software that is installed on a computer so that the computer can be used as a phone
Gateways connect VoIP networks to the PSTN (Public Switched Telephone Network)
Protocols
VoIP Systems use protocols for servers and clients to communicate
SIP is a standards based protocol that numerous vendors use
Codecs are used to encode voice communication
Codecs determine the Sound Quality and the Bandwidth usage of a call
Most VoIP servers come with codecs that you can use without any extra fees. If you need better codecs they can be purchased
Network Latency and QOS
Network latency is the time it takes for data to get from point A to point B
Standard telephones have a latency of 45ms, VoIP can have a latency of up to 75-100ms.
QOS -- Quality Of Service -- is a feature of networking equipment that allows the equipment to prioritize network traffic based on what it is.
Unified Communications is the idea that computer programs and server should be able to work with telephone communications.

Category:

Science & Technology

Tags:

• introduction
• to
• voip
• 720pH

[TJPU609]

Thank you very much Eli!

[MrDzjengisKhan]

Eli The Computerguy should have his own TV show

I would watch it

[svirenr]

Gr8 work dude!! Really appreciate it!!

Thanx..

[zeal316]

Very informative. Thanks for the class....voice over IP truly is revolutionary.

[MultiAmgine]

Thank you for the great video. The only thing that I would suggest is stream-lining your presentation. When you spend 5 minutes explaining that servers can be hosted I started tuning out, and will have to come back to the video to see what all you actually cover.

[xNgasux]

50?! that's a lot hell of an idiots  hahahahahahh

[apirtayogame]

o LOL, when i tried scrolling up my browser cuz i wanted to see what he has written at the upper part of the whiteboard

[cwoodall22]

Hi, I have a question that I could use some help with. Currently, our business has 4 analog phone lines + 1 fax line. We would like to move to a VoIP solution. We have access to Microsoft Exchange and Lync 2010 to handle voice mailboxes, softphones, etc. Our problem is: what do we need to connect and convert our analog lines to work with Exchange and Lync? If it helps, our phone provider is Charter. Thanks

[anuj8216]

gr888 presentation... thanks this is very informative and now i knw wat i need...:)



[nokyere]

Excellent job. Thanks for this lesson.