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P-2002 Series User’s Guide
Chapter 5 Introduction to VoIP 49
NAT may be implemented on a device that is between your Prestige and the Internet.
5.3.1 NAT Example
See the following figure. The Prestige (X) sends packets to the Internet. The Prestige’s IP
address is 10.0.0.3. This is a private or internal IP address. The NAT router maps the private
source IP address to a public source IP address (a.b.c.d). The public source IP address is also
known as the external IP address.
Note: The NAT figures in this chapter use lower-case letters (like a.b.c.d for example)
to represent public IP addresses.
Figure 17 NAT: Outgoing
When the NAT router receives packets with destination address IP address a.b.c.d, the NAT
router changes a.b.c.d back to the private IP address 10.0.0.3 and sends it to the Prestige.
Figure 18 NAT: Incoming
5.3.2 NAT Types
This section discusses the following NAT types that may be implemented on a router in front
of the Prestige.
• Full Cone
• Restricted Cone
• Port Restricted Cone
• Symmetric
- P-2002 Series 1
- Copyright 3
- Federal Communications 4
- Commission (FCC) Interference 4
- Statement 4
- Safety Warnings 6
- ZyXEL Limited Warranty 7
- Customer Support 8
- Customer Support 9 9
- P-2002 Series User’s Guide 10
- 10 Customer Support 10
- Table of Contents 11
- Chapter 4 12
- Chapter 5 12
- Chapter 6 13
- Chapter 7 13
- 16 Table of Contents 16
- List of Figures 17
- List of Tables 19
- About This User's Guide 21
- Related Documentation 21
- User Guide Feedback 21
- Syntax Conventions 21
- Graphics Icons Key 22
- CHAPTER 1 23
- 1.4 LEDs 25
- 1.5 Applications 26
- 1.5.2 Make Calls via IP-PBX 27
- CHAPTER 2 29
- Figure 6 Enter Password 30
- Figure 7 Change Password 30
- 2.3 Resetting the Prestige 31
- Figure 8 Web Configurator 32
- CHAPTER 3 35
- 3.4 Configuring Password 36
- 3.6 Configuring Time Setting 37
- 38 Chapter 3 System Screens 38
- Figure 11 Time Setting 38
- Table 7 Time Setting 38
- Chapter 3 System Screens 39 39
- 40 Chapter 3 System Screens 40
- CHAPTER 4 41
- 4.2 Configuring Ethernet 42
- Chapter 4 Ethernet Screens 43 43
- Figure 12 ETHERNET 43
- Table 8 ETHERNET 43
- 44 Chapter 4 Ethernet Screens 44
- Table 9 ETHERNET Mgnt Port 44
- CHAPTER 5 45
- 5.2.2 SIP Call Progression 46
- 5.2.3 SIP Servers 46
- 5.2.3.2 SIP Proxy Server 47
- 5.2.3.3 SIP Redirect Server 47
- 5.3 NAT 48
- 5.3.1 NAT Example 49
- 5.3.2 NAT Types 49
- 5.3.2.1 Full Cone NAT 50
- 5.3.2.2 Restricted Cone NAT 51
- 5.3.2.4 Symmetric NAT 52
- 5.4 NAT and SIP 53
- 5.5 Pulse Code Modulation 54
- 5.6 Voice Coding 54
- 5.6.1 G.711 55
- 5.6.2 G.729 55
- CHAPTER 6 57
- 58 Chapter 6 VoIP Screens 58
- Figure 24 VoIP 58
- Table 12 VoIP 58
- 6.3 Custom Tones (IVR) 59
- 60 Chapter 6 VoIP Screens 60
- Chapter 6 VoIP Screens 61 61
- Figure 25 VoIP Advanced 61
- 62 Chapter 6 VoIP Screens 62
- Table 13 VoIP Advanced 62
- Chapter 6 VoIP Screens 63 63
- 6.5 Quality of Service (QoS) 64
- 6.6 QoS Configuration 65
- 66 Chapter 6 VoIP Screens 66
- Figure 27 QoS 66
- Table 14 QoS 66
- CHAPTER 7 67
- 68 Chapter 7 Phone 68
- Figure 28 Phone Port 68
- Table 15 Phone Port 68
- 7.3.1 The Flash Key 69
- 7.3.2.1 European Call Hold 70
- 7.3.3.1 USA Call Hold 71
- 7.3.3.2 USA Call Waiting 72
- 7.3.3.3 USA Call Transfer 72
- Chapter 7 Phone 73 73
- Figure 29 Phone Common 73
- Table 18 Phone Common 73
- 74 Chapter 7 Phone 74
- CHAPTER 8 75
- 76 Chapter 8 Phone Book 76
- Figure 30 Speed Dial 76
- Table 19 Speed Dial 76
- 8.3 Call Forward 77
- 78 Chapter 8 Phone Book 78
- Figure 31 Call Forward 78
- Chapter 8 Phone Book 79 79
- Table 20 Call Forward 79
- 80 Chapter 8 Phone Book 80
- Figure 32 Lifeline 80
- Table 21 Lifeline 80
- CHAPTER 9 81
- 9.2 Log Message Descriptions 82
- Chapter 9 Logs 83 83
- Table 25 SIP Logs 83
- Table 26 RTP Logs 83
- 84 Chapter 9 Logs 84
- Table 29 Lifeline Logs 84
- CHAPTER 10 85
- 10.3 F/W Upload Screen 86
- Chapter 10 Maintenance 87 87
- Figure 35 Firmware Upload 87
- Table 31 Firmware Upload 87
- 10.4 Configuration Screen 88
- 10.4.1 Backup Configuration 89
- 10.4.2 Restore Configuration 89
- 90 Chapter 10 Maintenance 90
- 10.5 Restart Screen 91
- 92 Chapter 10 Maintenance 92
- CHAPTER 11 93
- 11.5 Auto Firmware Upgrade 94
- CHAPTER 12 95
- 96 Chapter 12 Troubleshooting 96
- Chapter 12 Troubleshooting 97 97
- 98 Chapter 12 Troubleshooting 98
- Chapter 12 Troubleshooting 99 99
- Figure 44 Pop-up Blocker 99
- Figure 45 Internet Options 100
- Figure 46 Internet Options 101
- 12.9.2 JavaScripts 102
- 3 Scroll down to Scripting 103
- 12.9.3 Java Permissions 104
- 12.9.3.1 JAVA (Sun) 105
- Figure 51 Java (Sun) 106
- APPENDIX A 107
- 108 Appendix A 108
- Power Adaptor Specifications 109
- 110 Appendix A 110
- APPENDIX B 111
- Installing Components 112
- Configuring 113
- Windows 2000/NT/XP 114
- Appendix B 115 115
- 116 Appendix B 116
- Appendix B 117 117
- 118 Appendix B 118
- Macintosh OS 8/9 119
- 120 Appendix B 120
- Macintosh OS X 121
- Verifying Settings 122
- APPENDIX C 123
- Subnet Masks 124
- Subnetting 124
- Example: Two Subnets 125
- 126 Appendix C 126
- Table 49 Subnet 1 126
- Table 50 Subnet 2 126
- Example: Four Subnets 127
- Example Eight Subnets 128
- Appendix C 129 129
- 130 Appendix C 130
- APPENDIX D 131
- How PPPoE Works 132
- Prestige as a PPPoE Client 132
- APPENDIX E 133
- 136 Appendix E 136
- Appendix E 137 137
- 138 Appendix E 138
- Table 61 Menu 12 138
- Appendix E 139 139
- 140 Appendix E 140
- Appendix E 141 141
- 142 Appendix E 142
- Appendix E 143 143
- 144 Appendix E 144
- Appendix E 145 145
- 146 Appendix E 146
- Appendix E 147 147
- 148 Appendix E 148
- Appendix E 149 149
- Appendix E 151 151
- 152 Appendix E 152
- Appendix E 153 153
- 154 Appendix E 154
- Appendix E 155 155
- 156 Appendix E 156
- Appendix E 157 157
- 158 Appendix E 158
- Appendix E 159 159
- 160 Appendix E 160
- Numerics 161
- 162 Index 162
- Index 163 163
- 164 Index 164
- Index 165 165
- 166 Index 166
- Index 167 167
- 168 Index 168
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