Information:
If you wish to operate Voice over WLAN with WLAN handsets of the SpectraLink 84 series , it is essential that you enable the APSD function in the configuration of LANCOM access points and WLAN routers.
Requirements:
- LCOS as of version 9 (download latest version)
- LANtools as of version 9 (download latest version)
Procedure with LANconfig:
1) Open the configuration of the LANCOM access point or WLAN router in LANconfig and navigate to the menu item Wireless LAN -> General -> Logical WLAN settings.
2) Enable the option (U-)APSD / WMM powersave for the relevant SSID. 
Procedure in LANconfig when working with a WLAN controller:
1) Open the configuration of the WLAN controller in LANconfig and navigate to the menu item WLAN controller -> Profiles -> Logical WLAN networks (SSIDs).
2) Enable the option (U-)APSD / WMM powersave for the relevant SSID.
