Enables WLAN SVP support on this WLAN QoS policy. SVP
support enables the identification and prioritization of traffic from Spectralink/Ploycomm
phones. This gives priority to voice, with voice management packets supported only on
certain legacy VOIP phones. If the wireless client classification is WMM, non-WMM devices
recognized as voice devices have all their traffic transmitted at voice priority. Devices
are classified as voice, when they emit SIP, SCCP, or H323 traffic. Thus, selecting this
option has no effect on devices supporting WMM..