168 TroubleshootingBefore calling Nortel Technical SupportTo facilitate the handling of the call, obtain the following information andhave it available when placing a call to Nortel Technical Support:• firmware versions on the wireless infrastructure, such as the APs• pre-installation Site Survey, including typical network information andthe wireless Site Survey information from the Site Survey tool such asthe Nortel Site Survey Tool• paper-based layout of AP placement• a more refined Site Survey of the area having issues using the wirelesshandset in Site Survey mode• list of the PBX and LTPS software versions, including a list of patches• WLAN IP Telephony Manager 2245 and handset firmware versions• WLAN IP Telephony Manager 2245 configuration menu screen captures• any error messages displayed in the Error Status screen of the SystemStatus Menu of the WLAN IP Telephony Manager 2245• any error messages displayed on the handset display screen• content of the Syslog Server (if using)• log of the DHCP Server (if available), if using DHCPFor more information about troubleshooting WLAN Telephony installations,see WLAN IP Telephony Installation and Commissioning (NN43001-504).Nortel Communication Server 1000WLAN Handsets FundamentalsNN43001-505 01.04 StandardRelease 5.0 4 September 2007Copyright © 2007, Nortel Networks.