Cisco Catalyst 2960 Command Reference Manual page 588

switchport priority extend
You can verify your settings by entering the show interfaces interface-id switchport privileged EXEC
command.
Related Commands Command
show interfaces
switchport voice vlan
{vlan-id | dot1p | none |
untagged}
Catalyst 2960 Switch Command Reference
2-561
Description
Displays the administrative and operational status of a switching port.
Configures the voice VLAN on the port.
Chapter 2 Catalyst 2960 Switch Cisco IOS Commands
OL-8604-04