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122 Troubleshooting
This information helps to determine if the most recent software version is
running. This information assists Nortel Technical Support in troubleshooting
software problems.
Speed or duplex mismatch
A duplex mismatch on the WLAN can cause the WLAN IP Telephony
Manager 2245 to not operate properly. Double-check WLAN connections
and interfaces to ensure that they are all configured as full-duplex.
In rare instances, the message Speed or Duplex mismatch error can occur
during the bootup sequence of the IP Telephony Manager 2245.
If this situation occurs, verify all devices connected to the WLAN IP
Telephony Manager 2245 are configured correctly and no duplex mismatch
is found. If all configurations are correct, reboot the IP Telephony Manager
2245. The error message must be cleared.
Nortel recommends that you
•
do not configure the Ethenet Link, on the SVP-II Configuration screen,
to auto-negotiate.
•
use either 100/full or 10/full, as is appropriate for the network.
•
configure the ethernet switch port to match the 2245 Ethernet Link.
Troubleshooting the WLAN Application Gateway 2246
For information about troubleshooting the optional WLAN Application
Gateway 2246, see Appendix "WLAN Application Gateway 2246" (page
147) "Configuring network parameters" (page 155).
Troubleshooting the handset
Transmission problems can result from any number of factors originating
from the wireless LAN. Wireless handsets can exhibit transmission
problems in several ways. They can cease functioning properly, display
error messages, or display incorrect data. When using and troubleshooting
wireless handsets, consider the following problem sources to determine the
best method of approaching a specific situation.
Context
When troubleshooting a problem with a wireless handset, it is important to
determine the context of when and where the problem occurred. Context
includes the following:
• Was the wireless handset on an active call?
•
Was the wireless handset moving or stationary?
•
Was the wireless handset powering on or powering off?
•
Was PTT being used?
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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