Implementing Cisco IP Switched Networks (SWITCH v2-0) (#258)

What command configures a port with a voice VLAN using 802.1Q?

switch(config-if)# switchport voice vlan 10
switch(config-if)# switchport voice vlan 10 q
switch(config-if)# switchport voice vlan 10 802.1q
switch(config-if)# switchport voice vlan 10 dot1p