WLAN specific configuration 177HandsetsFor the WLAN Handsets 2210/2211/2212, configure the license code to 010to download the Nortel UNIStim firmware.For the WLAN Handsets 6120/6140, configure the Telephony Protocol to032.For firmware and documentation, go to www130.nortelnetworks.com.WLAN IP Telephony Manager 2245If you have multiple WLAN IP Telephony Manager 2245s, you must splitthe alias IP address range to allocate a range to each 2245. Failure to doso causes nonfunctioning handsets because one or more 2245s cannotallocate alias IP addresses. Without alias IP addresses, the handsets areunable to register with the terminal proxy server (TPS).Quality of ServiceThe Differentiated Services Code Point (DSCP) Tag is a Quality of Service(QoS) mechanism for setting relative priorities. Packets are tagged with aDSCP field in the IP header for type of service. Configure the value as anumber from 0 to 255; the value can be different for each traffic class listedon the screen. Administrative traffic can have the lowest priority because itdoes not require voice quality.DSCP tags determine packet priorities for QoS. Nortel recommends thefollowing settings:WT (In call)—46 (default 4)WT (Standby)—40 (default 0)RTP—46 (default 4)PBX—40 (default 0)Inter-SVP2—0 (default)Other networks may use different settings—adjust as needed to matchthe network.ATTENTIONIMPORTANTYou must configure the command mls qos trust dscp on every on every Ciscoswitch port, on which a 2245 is installed; otherwise, the DSCP tagging configuredon the SVP servers is ignored.WLAN specific configurationThe following sections provide configuration information for variousswitches. In this document, WLAN Security Switch means Nortel WLANSecurity Switch.Nortel Communication Server 1000WLAN IP Telephony Installation and CommissioningNN43001-504 01.02 StandardRelease 5.0 15 June 2007Copyright © 2004-2007, Nortel Networks.