With 4.1 and up (not sure if 4.0 had this), this traffic is marked with TOS 3 or DSCP CS3 (24). You can modify this enterprise parameter to what ever you want.
DSCP for SCCP Phone-based Services :
This parameter specifies the Differentiated Service Code Point (DSCP) IP classification for IP phone services on SCCP-based phones, including any HTTP traffic. Note: You must restart SCCP-based phones for this parameter change to take effect.
This is a required field.
Default: default DSCP (000000).
Restart SCCP-based phones for the parameter change to take effect.
These are the paths to get to each CCX logs through CLI. They may be helpful if you are having issues accessing RTMT or downloading logs through it.
If you want to download them you have to prefix "file get " and you can add one of the options (re...