112 Administration and maintenanceis 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 informationis useful when troubleshooting.Replacing a WLAN IP Telephony Manager 2245Failed master WLAN IP Telephony Manager 2245If the master WLAN IP Telephony Manager 2245 fails, no telephone calls canbe made or received on that subnet. To quickly restore functionality to thewireless telephone network, Nortel recommends changing the configurationof a slave WLAN IP Telephony Manager 2245 to the configuration of themaster. Then reset all the other slave WLAN IP Telephony Managers 2245.When they come back up, the slaves recognize the reconfigured slave asthe new master.Then follow the steps in Procedure 10 "Replacing a WLAN IP TelephonyManager 2245" (page 112) to replace the failed WLAN IP TelephonyManager 2245.Replacing the failed WLAN IP Telephony Manager 2245Follow the steps in Procedure 10 "Replacing a WLAN IP Telephony Manager2245" (page 112) to replace the failed WLAN IP Telephony Manager 2245.Procedure 10Replacing a WLAN IP Telephony Manager 2245Step Action1 Disconnect the power cables and LAN cables from the WLAN IPTelephony Manager 2245.2 Remove the failed device from the wall or rack mount.3 Mount the replacement device in the same manner that the faileddevice was mounted.4 Connect the replacement device to the LAN and power supply.5 Configure the replacement WLAN IP Telephony Manager 2245.6 Download the software to the replacement WLAN IP TelephonyManager 2245.7 Test the replacement device to ensure that it is installed andconfigured correctly.For detailed information about installing and configuring the WLANIP Telephony Manager, see "Installation" (page 93) and "WLAN IPTelephony Manager 2245 configuration" (page 99).Nortel Communication Server 1000WLAN IP Telephony Installation and CommissioningNN43001-504 01.02 StandardRelease 5.0 15 June 2007Copyright © 2004-2007, Nortel Networks.
