Verifying the MAC Address-based Voice VLAN Configuration

Run the display voice-vlan [ vlan-id ] status command to check information about a voice VLAN, including the status, working mode, 802.1p priority and DSCP priority of the voice VLAN, and interface enabled with voice VLAN.
Run the display voice-vlan oui command to check the organizationally unique identifier (OUI), OUI mask, and OUI description of the voice VLAN.