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Appendix B
Troubleshooting WLAN IP Telephony
installations
This appendix contains information required for troubleshooting and
diagnosing of a WLAN IP Telephony installation, including the following
topics:
• "Site data-gathering tables" (page 173)
•
"Product-specific configuration" (page 176)
•
"WLAN specific configuration" (page 177)
• "General WLAN configuration" (page 183)
•
"DHCP server options" (page 184)
•
"DHCP options" (page 184)
•
"Quality of Service checklist for voice over WLAN applications" (page
191)
•
"Troubleshooting" (page 196)
•
"Handset error messages" (page 198)
•
"Timing information" (page 199)
•
"Diagnostic Tools" (page 200)
•
"Data capture" (page 213)
•
"Capture assert error messages with the Configuration Cradle" (page
218)
•
"Network speech levels" (page 219)
• "Reference documents" (page 220)
Site data-gathering tables
The following are examples of site data-gathering tables.
Nortel Communication Server 1000
WLAN IP Telephony Installation and Commissioning
NN43001-504 01.02 Standard
Release 5.0 15 June 2007
Copyright © 2004-2007, Nortel Networks
.
- NN43001-504 1
- Revision history 3
- 4 Revision history 4
- Contents 5
- Planning 33 6
- System information 77 7
- Installation 93 8
- Troubleshooting 119 9
- NN43001-504 01.02 Standard 10
- Release 5.0 15 June 2007 10
- Index 224 11
- Procedures 11
- New in this release 13
- 14 New in this release 14
- The new messages are: 15
- 16 New in this release 16
- How to get help 17
- 18 How to get help 18
- Overview 19
- Applicable systems 20
- Conventions 21
- Resources 21
- Declaration of conformity 22
- Shielded cable 22
- Call Server 24
- DHCP Server 25
- TFTP Server 25
- Firewall 25
- Components 26
- Language 27
- Licenses 27
- Wi-Fi Multimedia 27
- 28 Overview 28
- Loud noise environments 29
- Access Points 30
- Handset switchover 31
- 32 Overview 32
- Planning 33
- High overhead of 802.11 34
- Quality of Service 35
- DHCP server planning 36
- DHCP server planning 37 37
- TFTP Server planning 38
- TFTP Server planning 39 39
- Syslog Server planning 40
- Access point planning 40
- Site sur vey 41
- Site Survey mode 41
- 42 Planning 42
- Figure 3 42
- Frequencies used by b radio 42
- Effective site survey 43
- Network usage 43
- Mobility requirements 43
- Physical site study 43
- Walk-through and survey 44
- RF transmission testing 44
- Example of AP placement 44
- Solving coverage issues 45
- Solving overlap issues 45
- Network planning 46
- Network recommendation 46
- Network management 47
- 48 Planning 48
- Network management 49 49
- 50 Planning 50
- Network management 51 51
- Figure 6 51
- ENMS 10.5 IPSM overview 51
- 52 Planning 52
- Figure 7 52
- Network management 53 53
- 54 Planning 54
- Figure 8 54
- Access Point interference 56
- SSID options and limitations 57
- Layer 3 implementation 58
- Installation requirements 59
- Capacities 59
- Group capacities 60
- Gateway and timing function 64
- Roaming and handover 64
- Multicast 65
- 66 Planning 66
- Figure 10 66
- Figure 11 67
- 68 Planning 68
- Figure 12 68
- Figure 13 69
- 70 Planning 70
- Figure 14 70
- Figure 15 71
- Procedure 1 71
- 72 Planning 72
- Figure 16 72
- Figure 17 73
- IP address planning 74
- Planning worksheets 75
- System information 77
- Zones for wireless handsets 78
- Alias IP address 79
- Call blocking 79
- Jitter buffer 80
- RLR and SLR 80
- Gain adjustment 81
- Programmable rings and tones 81
- Virtual Office 81
- Branch Office 81
- Survivable Remote Gateway 82
- External Applications Server 83
- End-to-end QoS 83
- NAT Traversal feature 84
- Network configurations 84
- Figure 18 85
- Figure 20 87
- Not recommended VoWLAN design 87
- 88 System information 88
- Figure 21 89
- CS 1000 features 90
- IP Phone 2004 features 91
- Preinstallation checklist 94
- Wall-mount 95
- Rack-mount 96
- LAN connection 97
- Power connection 97
- 98 Installation 98
- Introduction 99
- Configuration tasks 101
- Telnet connection 102
- Configure the network 103
- ATTENTION 105
- Save the configuration 105
- Change the password 108
- Change the password 109 109
- Procedure 9 109
- Changing a forgotten password 109
- Checking in to the Gateway 111
- Procedure 10 112
- View software version 113
- Software updates 114
- Lock the system 115
- Procedure 12 116
- Displays 117
- Normal download messages 117
- Troubleshooting 119
- Network Status screen 120
- Troubleshooting the handset 122
- Access Point problems 123
- Configuration problems 123
- Dropped calls 124
- LD 32 IDU command 139
- LD 32 STAT command 140
- LD 117 Inventory command 140
- LD 117 STIP command 140
- TPS CLI commands 141
- 142 Troubleshooting 142
- Dropped calls 143 143
- 144 Troubleshooting 144
- 146 Troubleshooting 146
- Appendix A 147
- WLAN Application Gateway 2246 147
- System overview 148
- Front panel 149
- Third-party applications 150
- Installation 151
- Configuration 153
- Task summary list 154
- Configuring the OAI Box 155
- Configuring network parameters 155
- Procedure 16 156
- Configuring the network 156
- Connecting to the LAN 157
- Figure 26 158
- RS-232 cable connection 158
- Connecting through Telnet 160
- Configuring the Telephone Line 161
- Deleting a handset 162
- Searching for a handset 162
- Feature programming 163
- System status 164
- Network status 165
- Viewing the network status 166
- Software versions 166
- Certification testing 167
- Software 168
- Obtain software using FTP 169
- TFTP software updates Systems 170
- Appendix B 173
- Figure 29 174
- System Information table 174
- Figure 30 174
- System History table 174
- Product-specific configuration 176
- WLAN specific configuration 177
- General WLAN configuration 183
- DHCP server options 184
- DHCP options 184
- DHCP options 187 187
- Specific option 188
- RF basics and AP configuration 193
- Voice-quality issues 197
- Handset error messages 198
- Timing information 199
- Diagnostic Tools 200
- Diagnostics Mode 204
- Syslog Mode 207
- Data capture 213
- Network diagram 215
- Syslog capture configuration 215
- Signaling Server log capture 216
- General data capture 217
- Network speech levels 219
- Reference documents 220
- Appendix C 223
- Compatible Access Points 223
- Index 225 225
- 226 Index 226
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