Replacing a Wlan IP Telephony Manager | Nortel Networks NN43001-504

112Administration and maintenance

is checking in again and again, it can indicate a problem on the network, such as poor AP coverage for a user who is moving about. This information is useful when troubleshooting.

Replacing a WLAN IP Telephony Manager 2245

Failed master WLAN IP Telephony Manager 2245

If the master WLAN IP Telephony Manager 2245 fails, no telephone calls can be made or received on that subnet. To quickly restore functionality to the wireless telephone network, Nortel recommends changing the conﬁguration of a slave WLAN IP Telephony Manager 2245 to the conﬁguration of the master. Then reset all the other slave WLAN IP Telephony Managers 2245. When they come back up, the slaves recognize the reconﬁgured slave as the new master.

Then follow the steps in Procedure 10 "Replacing a WLAN IP Telephony Manager 2245" (page 112) to replace the failed WLAN IP Telephony Manager 2245.

Replacing the failed WLAN IP Telephony Manager 2245

Follow the steps in Procedure 10 "Replacing a WLAN IP Telephony Manager 2245" (page 112) to replace the failed WLAN IP Telephony Manager 2245.

Procedure 10

Replacing a WLAN IP Telephony Manager 2245

Step Action

1Disconnect the power cables and LAN cables from the WLAN IP Telephony Manager 2245.

2Remove the failed device from the wall or rack mount.

3Mount the replacement device in the same manner that the failed device was mounted.

4Connect the replacement device to the LAN and power supply.

5Conﬁgure the replacement WLAN IP Telephony Manager 2245.

6Download the software to the replacement WLAN IP Telephony Manager 2245.

7Test the replacement device to ensure that it is installed and conﬁgured correctly.

For detailed information about installing and conﬁguring the WLAN IP Telephony Manager, see "Installation" (page 93) and "WLAN IP Telephony Manager 2245 conﬁguration" (page 99).

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

Image 112

Nortel Networks NN43001-504 manual Replacing a Wlan IP Telephony Manager, Failed master Wlan IP Telephony Manager

Contents

Wlan IP Telephony Installation and Commissioning Page Revision history JuneMay August Revision history Contents Planning System information Installation Troubleshooting 119 Release Appendix C Compatible Access Points 223 Index 224 Procedures Copyright 2004-2007, Nortel Networks New in this release Feature descriptionOther changes Zones for wireless handsets Open and use the Admin menu on the handsetAdmin menu options for the Wlan Handset 6120/6140 Feature programming for the Wlan Handset 6120/6140 Wireless handset status messages New messages are Error Server Unavailable. Restarting New in this release Getting help over the phone from a Nortel Solutions Center How to get helpGetting help from the Nortel Web site Getting help through a Nortel distributor or reseller Overview Subject Applicable systems System migration Conventions ResourcesNTPs Online Declaration of conformity Wireless telephone network descriptionShielded cable Wireless telephone network description Typical wireless telephone network conﬁguration Call Server Dhcp Server Tftp ServerFirewall Wlan Handset 2210/2211/2212 and Wlan Handset 6120/6140 Components Language Wi-Fi MultimediaLicenses Wired Equivalent Privacy Wi-Fi Protected AccessWi-Fi Protected Access2 Push-to-talk feature Wlan IP Telephony Manager Loud noise environments Access Points Wlan Application Gateway Handset switchover Handset switchoverLoss of signal Overview Planning Challenges of integrating voice applications High overhead Rate scaling and variable capacity Power adjustments and variable capacity Quality of Service Dhcp server planning Dhcp server planning Tftp Server planning Sample Dhcp reservation showing assigned parameters Tftp Server planning Syslog Server planning Access point planningRecommendation Access point requirement considerations for b radio Site Survey modeSite survey Frequencies used by b radio Effective site survey Network usageMobility requirements Physical site study Example of AP placement RF transmission testingWalk-through and survey Solving overlap issues Solving coverage issuesSample AP placement diagram for b radio Network recommendation Network planningRadio assignment Sample Access Control List Network management Assessment through a Wlan site survey Assessment using NetIQ Vivinet Assessor Planning Enms 10.5 Ipsm overview Enms 10.5 Ipsm convergence view Network management Zones NetiQ Vivinet Diagnostics exampleCommunication Server 1000 Telephony Manager Other network design considerations Access Point interference Example Ssid options and limitations Layer 3 implementation Single telephony Vlan implementation Wlan IP Telephony Manager 2245 planning Installation requirementsCapacities Master Wlan IP Telephony Manager Wlan IP Telephony Manager 2245 groupsGroup capacities Wireless Managers Total Handsets 2245 Calls Erlangs 10% use 15% use 20% use Telephony Managers 2245 2245-10 2245-20 Not applicable Wlan IP Telephony Manager 2245 planning Access points on the same subnet Mobility across different subnets when using DhcpGateway and timing function Roaming and handover Placement guidelines for the Wlan IP Telephony Manager Multicast Maximum delay, jitter and packet loss Jitter removal for packets going to the AP Example 1 End-to-end delay and packet loss for a LAN Example 2 End-to-end delay and packet loss for a WAN Planning Step Action End Wlan Application Gateway 2246 planning IP address planning IP addressing with Dhcp Planning worksheetsWlan IP Telephony Manager 2245 planning worksheet Required only if using the optional Wlan Application Gateway Bandwidth management System informationZones Current registration status of wireless handsets Wireless telephone type designation CodecsAlias IP address Call blocking Jitter buffer RLR and SLR Gain adjustment Programmable rings and tonesVirtual Ofﬁce Branch Ofﬁce Survivable Remote Gateway External Applications Server End-to-end QoS NAT Traversal feature Network conﬁgurations VPN design over a Layer 2 network VPN design over a Layer 3 network Not recommended VoWLAN design Wlan IP Telephony Manager 2245 in a NAT environment Dhcp Server location in a NAT environment Wlan Application Gateway 2246 in a NAT environment Tftp Server location in a NAT environmentNetwork conﬁguration 3 with Full Dhcp Server CS 1000 features CS 1000 not supported Feature Feature full name Description IP Phone 2004 features XAS Supported on the Wlan Feature Handsets Description KEM Installation Required materials Preinstallation checklist Wlan IP Telephony Manager 2245 installation tasksSupplied equipment About the front panel Wall-mount Wlan IP Telephony Manager 2245 front panel Procedure Rack-mounting the Wlan IP Telephony Manager Procedure Wall-mounting the Wlan IP Telephony ManagerRack-mount Wlan Application Gateway 2246 installation Power connectionProcedure Connecting the power LAN connection Installation Introduction Wlan IP Telephony Manager 2245 conﬁgurationFunctional description Wlan IP Telephony Manager 2245 conﬁguration Connect to the Wlan IP Telephony Manager Conﬁguration tasksSerial port connection Telnet connection Conﬁgure the network Wlan IP Telephony Manager 2245 conﬁguration Procedure Saving the conﬁguration Save the conﬁguration Conﬁgure the Wlan IP Telephony Manager Changing the master IP address Conﬁgure the Wlan IP Telephony Manager 2245 Change the password Procedure Changing the password Procedure Changing a forgotten password Wlan IP Telephony Manager 2245 conﬁguration Adding a Wlan IP Telephony Manager 2245 to the system Administration and maintenanceChecking in to the Gateway Procedure Replacing a Wlan IP Telephony Manager Replacing a Wlan IP Telephony ManagerFailed master Wlan IP Telephony Manager Replacing the failed Wlan IP Telephony Manager Wireless handset scenarios Removing a Wlan IP Telephony Manager 2245 from the systemChanging the master Wlan IP Telephony Manager View software version Software updates For a wireless handsetProcedure Viewing the software version For the Wlan IP Telephony Manager Update software on the Wlan IP Telephony Manager Update software on the Wlan Application GatewayUpdate software on a wireless handset Lock the system Step Action Select Find Products A-Z Wireless handset download messages DisplaysNormal download messages Normal download messages Message Description Download failure or recovery messages Failure and recovery messages Message Description Troubleshooting the Wlan IP Telephony Manager TroubleshootingError Status screen Network Status screen Software Version Numbers screen Troubleshooting the Wlan Application Gateway Troubleshooting the handsetSpeed or duplex mismatch Context Access Point problems Conﬁguration problems Dropped calls Duplex mismatchNo ring Far-end echo Wireless handset status messages Message Description Action Message Description Action Message Description Action Battery Low message Power Off/End Call. PlacePress Power On/Start Call Low Battery and a beep NN43001-504 01.02 Standard Release 5.0 15 June Do not Power OFF Message Description Action Message Description Action Message Description Action Message Description Action LAN Message Description Action Message Description Action See Updating software Using Call Server overlay commands LD 32 IDU command LD 117 Inventory command LD 32 Stat commandLD 117 Stip command TPS CLI commands DsetShow command IsetReset and isetResetAll E2dsetShow commandIsetCount and isetGet UmsKernalJobsShow and umsUpgradeAll UmsPolicyShow and umsUpdatePolicyIsetShow, isetShowByTN, and isetShowByIP UsiLibTrace Before calling Nortel Technical Support Troubleshooting coverage issuesDetermining alias IP addresses Before calling Nortel Technical Support Troubleshooting Appendix a Wlan Application Gateway NTTQ65AB NTTQ65BA Model number Number of users System overviewWlan Application Gateway 2246 connections Ethernet switch connections Front panel Third-party applications NTTQ65xx Installation Installing with a new systemInstalling in an existing system Nurse-call systems Procedure Installing the Wlan Application Gateway Conﬁguring the Wlan Application Gateway 2246 IP address Conﬁguration 04830130 Task summary list Administration console navigationEnter Conﬁguring the OAI Box Conﬁguring network parameters Procedure Conﬁguring the network Connecting to the LAN Connect to the Application Server through an RS-232 port Connecting to the Application ServerRS-232 cable connection Connect to the Application Server through the LAN Pins on the connector FunctionConnect to Application Server through a modem Connecting through Telnet Continuing conﬁguration through Telnet Procedure Conﬁguring a telephone line Conﬁguring the Telephone Line Procedure Deleting a handset Procedure Searching for a handsetDeleting a handset Searching for a handset Feature programming Procedure Programming a feature Procedure Setting or changing a password Setting or changing a passwordSystem status Procedure Viewing system status Network status Viewing the network status Software versions Certiﬁcation testing Software Software updatesSoftware ﬁles File name Description Obtain software using FTP Procedure Transferring the software using FTP Tftp software updates Systems Procedure Loading software updates Handset Planning Worksheet Planning Worksheet for HandsetsDialing Port MAC Address User Name Ext IP Address if static Free the serial port for administrative purposes Appendix B Troubleshooting Wlan IP Telephony installations Site data-gathering tables System Information table System History table Site data-gathering tables Terminal proxy server Product-speciﬁc conﬁgurationAttachments Other Required table Handsets Wlan speciﬁc conﬁgurationWlan IP Telephony Manager Nortel switches Nortel Wlan Security SwitchCisco access points and switches Cisco Aironet 1200 Series Parameter Setting Importance Wlan Security Switch 2270 notes Speciﬁc Cisco conﬁguration examples 1230 connected with 2950 and 2245 connected with 2950 1230 connected with 3560 and 2245 connected with 6509 Connected the APs Connected to General Wlan conﬁguration AP1230 Connected to APs Dhcp server options Dhcp options Dhcp options Appendix B Troubleshooting Wlan IP Telephony installations Dhcp support for handsets that emulate the IP Phone Appendix B Troubleshooting Wlan IP Telephony installations Dhcp options Appendix B Troubleshooting Wlan IP Telephony installations Copyright 2004-2007, Nortel Networks Appendix B Troubleshooting Wlan IP Telephony installations RF basics and AP conﬁguration Appendix B Troubleshooting Wlan IP Telephony installations Copyright 2004-2007, Nortel Networks Troubleshooting Call or signalling-related issuesTypical call-related issues Issue Type Check for Diagnosis ﬂows Voice-quality issues Typical voice quality issues Issue Type Check for Handset error messages Handset error messages Short Error code Description Action Timing information Short Error code Description ActionTiming Wlan IP Telephony Manager Handset to To the AP Diagnostic Tools Run Site Survey for the Wlan Handset 2210/2211/2212 Ssid Ab7bc8 -28 100 2ae578 -48 200 2ae596 -56 Any Detl Alpha Diagnostics Mode SAWA2 Diagnostics Screen 4 displays the following information Syslog Mode Syslog message contents Contents Syslog message Contents Audio stats AStat Radio stats NStat Syslog reason codes Reason code Meaning Number AP TOO Busy Action Timeout Reason code Meaning Number Data capture Data checklistQuestions Site-data required for the capture analysis Dhcp scope Network diagram Syslog capture conﬁguration Signaling Server log capture Procedure Using the CLI to capture a Signaling Server log Procedure Obtaining the wired and wireless captures General data capturePage Network speech levels Click Get Assert Data Network speech levels Reference documentsReferences Source and type Title Revision Comments Source and type Title Revision Comments Ieee Source and type Title Revision Comments Appendix C Compatible Access Points Compatibility Symbols/Numerics Index Index Wlan Page Wlan IP Telephony Installation and Commissioning