Comet Labs IPTEL-S manuali

Comet labs IPTEL-S Manuale Utente (50 pagine)

Marchio: Comet-labs | Categoria: Tavolini per PC/Workstation | Dimensione: 0.26 MB |

Inglese

Indice

Introduction to SIP and VoIP

1

What is SIP ?

3

How can SIP be used?

4

SIP Based Products

5

Who is using SIP?

6

Who Invented SIP?

7

SIP Standardization Efforts

8

Supported by Multiple

9

Standards Groups

9

Related IETF Working Groups

10

A Remarkably Fast Timeline !

11

SIP - A New Generation of

12

Communication Services

12

What Did SIP Inherit?

13

SIP Design Choices

14

Peer to Peer

15

Proxy Server

15

SIP is Not

16

SIP Not a Transport

17

SIP Needs Other Protocols

18

Session Description Protocol

19

Real Time Transport Protocol

20

SIP Application Server

21

SIP Practical Issues

22

SIP Functionality

23

Major Components of the SIP

24

Environment

24

SIP Message

25

Message Types

26

Status Codes

27

Basic Message Format

28

Message - START LINE

29

Message - HEADERS Fields

30

Message - BODY (CONTENT)

31

Message - SAMPLE

32

SIP Call Flow - Direct

33

SIP Questions Now?

35

VoIP – Reinventing the Wheel

36

VoIP Advantages

37

What services do you get?

38

Making the VoIP Connection

39

Product Examples

40

And VoIP can be Invisible

41

VoIP Architectures

42

VoIP Codecs –

43

Bandwidth Requirements

43

NAT Transversal

44

VoIP Network Performance

45

Considerations

45

SIP and QoS Control

46

QoS Protocols

47

Questions – VoIP

48

Attachments

49

Thank You

50

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