[cisco-voip] Clustering over the WAN - ICCS and QoS Policy Design

[Boon]

My client has a requirement to cluster their new 10.5 solution over the
WAN. I've read the SRND and it states that QoS needs to be provisioned for
intracluster communications when using this deployment model.

The SRND also states that priority ICCS traffic is marked DSCP 24 which is
great but my client's current CPE router QoS policy is ACL based using port
numbers.

I've checked the TCP/IP Port Usage guide for CUCM and there are no details
on which ports are marked as priority.

Has anyone here created a QoS Classification ACL based upon the ICCS ports
which have priority markings?

If not then I'm guessing that my only option left is to trust markings from
the servers.
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