Comet Labs IPTEL-S podręczniki

Comet labs IPTEL-S Instrukcja Użytkownika (50 strony)

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Angielski

Spis treści

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

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Standards Groups

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Related IETF Working Groups

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A Remarkably Fast Timeline !

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SIP - A New Generation of

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Communication Services

12

What Did SIP Inherit?

13

SIP Design Choices

14

Peer to Peer

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Proxy Server

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SIP is Not

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SIP Not a Transport

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SIP Needs Other Protocols

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Session Description Protocol

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Real Time Transport Protocol

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SIP Application Server

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SIP Practical Issues

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SIP Functionality

23

Major Components of the SIP

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Environment

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SIP Message

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Message Types

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Status Codes

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Basic Message Format

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Message - START LINE

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Message - HEADERS Fields

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Message - BODY (CONTENT)

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Message - SAMPLE

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SIP Call Flow - Direct

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SIP Questions Now?

35

VoIP – Reinventing the Wheel

36

VoIP Advantages

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What services do you get?

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Making the VoIP Connection

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Product Examples

40

And VoIP can be Invisible

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VoIP Architectures

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VoIP Codecs –

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Bandwidth Requirements

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NAT Transversal

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VoIP Network Performance

45

Considerations

45

SIP and QoS Control

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QoS Protocols

47

Questions – VoIP

48

Attachments

49

Thank You

50

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