I have a CallManager 5.x connected to a 3750 stack with auto-qos enabled. Also off that stack, on another VLAN, I have my router connecting across the WAN. However, my service-policy on the router serial interface indicates that no control packets marked with eitehr COS3 or AF31 are coming in. "Show mls qos interface stat" on the 3750 shows packets coming in from CM marked with AF24 (CS3), however, the output of the 3750 port towards the router doesn't indicate packets with those same markings being transmitted towards the router. It appears as though the 3750 stack is re-writing the DSCP values for call-control. I have not done any QoS config on the 3750 interface VLANS. Does anyone have any idea? Please see the attached notepad for better illustrative purposes. THANKS!