English | Size: 763.46 MB
Genre: eLearning
What you’ll learn
Voice over IP
Session Protocols
In the last year I have thought this course twice to companies who were starting a new VoIP project. It is an interesting training for those who have little knowledge of telephony and voice over IP networks.
When I started with open source PBXs in 2004, one of the things I’ve noticed is, most people working with open source telephony do not have a background on VoIP protocols.
I believe this training will never be ready, there will always new devices and new technologies to cover. So I plan to update it regularly. As you have lifetime access, you will always receive the updates.
** This training is purely theoretical, no practical exercises will be applied **
VoIP Fundamentals
Here we will present the basics of VoIP
How voice is encoded digitally. In this chapter we are going to see the basics on how the voice is encoded according to the theorem of Nyquist.
VoIP and the OSI model
The Nyquist theorem
Coders and Decoders
Selecting a Codec
How the voice is packetized, synchronized and controlled using the Real Time Protocol
Payload identification
Sequencing
Timestamping
Real Time Transport Control Protocol
RTP header compression
How the sessions are described and negotiated using the Session Description Protocol
Offer/Answer Model
SDP Parameters
Main Parameters
Quiz number 1 – Voice Fundamentals
What are the most common Session Protocols and where they are in use
Comparing and contrasting Session Protocols SIP, H323,MGCP, Skinny/SCCP,IAX
Session Initiation Protocol, the de facto standard
H323, the protocol from ITU
Media Gateway Control Protocol
Megaco
Skinny
SIP
Introduction to SIP
SIP Components
SIP Ladder and Trapezoid
SIP requests and replies
H323
H.323 components
H.323 Protocols
H.323 Protocol Suite
H.323 Messages
H.323 Gatekeepers
Media Gateway Control Protocol
MGCP Intro
MGCP Architecture
Call Setup
Quiz number 2 – Session Protocols
Who this course is for:
VoIP professionals and beginners
nitro.download/view/602B33E06D7C0BA/Voice-over-IP-Fundamentals.part1.rar
nitro.download/view/4BDBEF836AD900F/Voice-over-IP-Fundamentals.part2.rar
rapidgator.net/file/f3413ff2613ca156f6d65dc25657a41a/Voice-over-IP-Fundamentals.part1.rar.html
rapidgator.net/file/03543bcc6c312144b343094be5483324/Voice-over-IP-Fundamentals.part2.rar.html
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