Dell POWEREDGE M1000E - Manual (Page 632)

632 Configuring VLANs
console(config-if-Gi1/0/10)#voice vlan 25
6 Disable authentication for the voice VLAN on the port. This step is
required only if the voice phone does not support port-based
authentication.
console(config-if-Gi1/0/10)#voice vlan auth
disable
7 Exit to Privileged Exec mode.
console(config-if-Gi1/0/10)#<CTRL+Z>
8 View the voice VLAN settings for port 10.
console#show voice vlan interface gi1/0/10
Interface............................. Gi1/0/10
Voice VLAN Interface Mode............. Enabled
Voice VLAN ID......................... 25
Voice VLAN COS Override............... False
Voice VLAN DSCP Value................. 46
Voice VLAN Port Status................ Disabled
Voice VLAN Authentication............. Disabled