Voice VLAN Commands 837• auth—Enables/disables authentication on the voice vlan port.• data—Observe the priority on received voice vlan traffic (trusted mode).• dot1p—Configure Voice VLAN 802.1p priority tagging for voice traffic.• dscp—Configure DSCP value for voice traffic on the voice vlan port.(Range: 0–64).• none—Allow the IP phone to use its own configuration to send untaggedvoice traffic• priority—The Dot1p priority for the voice VLAN on the port.• trust—Trust the dot1p priority or DSCP values contained in packetsarriving on the voice vlan port.• untagged—Configure the phone to send untagged voice traffic.• untrust—Do not trust the dot1p priority or DSCP values contained inpackets arriving on the voice vlan port.•vlanid—The voice VLAN ID.Default ConfigurationThe default DSCP value is 46.Command ModeInterface Configuration (Ethernet) mode.User GuidelinesThere are no user guidelines for this command.Exampleconsole(config-if-Gi1/0/1)#voice vlan 1console(config-if-Gi1/0/1)#voice vlan dot1p 1console(config-if-Gi1/0/1)#voice vlan noneconsole(config-if-Gi1/0/1)#voice vlan untaggedvoice vlan data priorityThis command is to either trust or not trust (untrust) the data traffic arrivingon the voice VLAN port.