pls help me,
3th party phones (snom?) are connectet to my switch
no mls qos
switchport access vlan 2 (for data)
switchport voice vlan 33 (for voice)
but my problem is, all DCSP's through the switch in both directions are set to DSCP 0.
Phone (5) ----> switch ----> input Routerinterface (0)
Router (5) ----> switch ----> Phone (0)
the switch changes all dscp to zero, why? what can i do?