Avaya IP Telephony Guía de configuración Pagina 7
- Pagina / 146
- Tabla de contenidos
- MARCADORES
Valorado. / 5. Basado en revisión del cliente
Contents 7
IP Telephony Configuration Guide
Adjust the jitter buffer size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Reduce packet errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Routing issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Post-installation network measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Appendix B
Silence compression. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Silence compression on Half Duplex Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Silence compression on Full Duplex Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Comfort noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Appendix C
Network performance utilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Ping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Traceroute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Sniffer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Appendix D
Interoperability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Speech path setup methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Media path redirection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Gatekeeper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Asymmetrical media channel negotiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
No feedback busy station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Symbol NetVision telephones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Appendix E
Quality of Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Setting QoS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Measuring Intranet QoS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Measuring end-to-end network delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Measuring end-to-end packet loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Recording routes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Adjusting Ping measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Adjustment for processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Late packets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Measurement procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Other measurement considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Decision: does the intranet meet IP telephony QoS needs? . . . . . . . . . . . . 128
Implementing QoS in IP networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Traffic mix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
TCP traffic behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Business Communications Manager router QoS support . . . . . . . . . . . . . . . . . . 130
- Business Communications 1
- Manager 2.5 1
- IP Telephony Configuration 1
- Trademarks 2
- Contents 3
- Chapter 4 4
- Chapter 5 5
- Chapter 6 6
- Appendix A 6
- 12 Tables 12
- Before you begin 13
- Symbols used in this guide 13
- Text conventions 14
- Acronyms 14
- Related publications 15
- How to get help 16
- Chapter 1 17
- Introduction 17
- IP telephones and VoIP trunks 18
- Figure 1 Network diagram 19
- Telephones 20
- IP network 21
- Key IP telephony concepts 22
- Jitter Buffer 23
- QoS routing 23
- Chapter 2 25
- Prerequisites checklist 25
- Network assessment 26
- Resource assessment 27
- Keycodes 27
- Defining published IP address 28
- IP telephones 30
- NetVision wireless telephones 30
- Chapter 3 31
- Installing IP telephones 31
- Choosing a codec 33
- Choosing a Jitter Buffer 34
- Before installing 34
- Using a 3-port switch 35
- NORTEL NETWORKS 36
- Manual Cfg DHCP(0 no, 1 yes) 36
- Field Value Description 37
- Slow connection 40
- One-way or no speech paths 40
- Dropped voice packets 40
- Changing the contrast level 40
- Configuring DHCP 41
- Figure 5 IP Terminal status 42
- Figure 6 Configuration menu 42
- Figure 8 Configuration menu 44
- Download Pending 44
- Customizing feature labels 46
- Moving IP telephones 47
- Keep DN alive 48
- Figure 12 i2050 Switch type 49
- 7 Click on the BCM option 50
- Configuring NetVision records 52
- /symbol.com> 53
- <http:/ 53
- Testing the handset functions 55
- Changing a handset Name 57
- Configuring VoIP trunks 59
- Configuring media parameters 60
- Setting silence compression 61
- Setting jitter buffers 62
- Outgoing call configuration 63
- Figure 18 Trunk/Line data 64
- Configuring a remote gateway 66
- Configuring PSTN fallback 68
- Enabling PSTN fallback 69
- Setting up the VoIP schedule 69
- Configuring routes 70
- Figure 26 VoIP schedule 73
- Activating the VoIP schedule 74
- Turning on QoS monitor 75
- Incoming call configuration 76
- Example configuration 78
- Making calls 82
- Connecting an i200X telephone 83
- Quality of Service Monitor 86
- Port settings 86
- Using firewalls 87
- Using a gatekeeper 88
- The call signaling method 89
- Gatekeeper call scenarios 91
- Typical applications 93
- Setting up the system 95
- Efficient Networking 99
- Network engineering 100
- LAN engineering examples 103
- WAN engineering 104
- Setting Non-linear processing 105
- (8 kb/s) 106
- P0937663 03.1 106
- Traceroute 106
- Enough link capacity 107
- Not enough link capacity 107
- Further network analysis 108
- Reduce link delay 109
- Reducing hop count 109
- Adjust the jitter buffer size 110
- Reduce packet errors 110
- Routing issues 111
- Appendix B 113
- Silence compression 113
- Comfort noise 116
- Appendix C 117
- Network performance utilities 117
- Appendix D 119
- Interoperability 119
- Speech path setup methods 120
- Media path redirection 120
- Gatekeeper 120
- Symbol NetVision telephones 121
- 122 Interoperability 122
- Appendix E 123
- Quality of Service 123
- Measuring Intranet QoS 124
- Recording routes 125
- Adjusting Ping measurements 126
- Measurement procedure 127
- 128 Quality of Service 128
- Traffic mix 129
- TCP traffic behavior 129
- Network Quality of Service 130
- Quality of Service parameters 131
- Fallback to PSTN 132
- Glossary 133
- 134 Glossary 134
- Glossary 135 135
- 136 Glossary 136
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