Comet Labs IPTEL-S Manuale Utente Pagina 12
- Pagina / 50
- Indice
- SEGNALIBRI
- 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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