Troubleshooting the handset 123• At what location did the problem occur?Record this information and provide it to the system administrator or NortelTechnical Support.Access Point problemsMost, but not all, wireless handset audio problems are related to AP range,positioning, and capacity. Performing a Site Survey as described in "Sitesurvey" (page 41) can isolate the AP causing these types of problems. If thewireless handset itself is suspected, conduct a parallel site survey with awireless handset that is known to be functioning properly.The following are some situations that can cause wireless handsetdifficulties to occur:• In range/Out of range—service is disrupted if a user moves outside thearea covered by the WLAN APs. Service is restored if the user movesback within range. If a call drops because a user moves out of range,the wireless handset recovers the call if the user moves back into rangewithin a few seconds.• Capacity—in areas of heavy use, the call capacity of a particular APcan be filled. If this happens, the user hears three chirps from thewireless handset. The user can wait until another user terminates a call,or move within range of another AP and try the call again. If a useris on a call and moves into an area where capacity is full, the systemattempts to find another AP. Due to range limitations, this can be thesame as moving out of range.• Transmission Obstructions—before system and AP installation, thebest location for APs for optimum transmission coverage is determinedwhen a site survey is performed. However, small pockets of obstructioncan still be present, or obstructions can be introduced into the facilityafter AP installation. This loss of service can be restored by moving outof the obstructed area, or by adding more APs.Configuration problemsCertain problems are associated with improper configuration of either theWLAN IP Telephony 2245, the optional WLAN Application Gateway 2246, orthe wireless handset.Configuration problems are generally corrected by changing theconfiguration on the WLAN IP Telephony 2245, the WLAN ApplicationGateway 2246, or the wireless handset.There can also be incorrect programming of the APs. For compatibility andconfiguration information about the APs in use at the site, see Appendix"Compatible Access Points" (page 223).Nortel Communication Server 1000WLAN IP Telephony Installation and CommissioningNN43001-504 01.02 StandardRelease 5.0 15 June 2007Copyright © 2004-2007, Nortel Networks.
