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CUCM: Call Admission Control (CAC) in MPLS environment



could anybody help me in setup location based CAC in CUCM 9.1.


I have read already some ducumentaion, but it's not entirely clear to me.


The statement in these documetaion is: ".. assign the apropriate bandwith to the locations ...".


But as far as I know I can assign the bandwidth only to pairs of locations. I guess it's not the idea to put the bandwidth from each location to all the other locations...


So, should I put the bandwith from each location to the hub_none location?

Which devices do I have to put then into the hub_location?

How does it work when a phone in one location calls another phone in another location?

What about the HQ devices?


I have a centralized environment: one CUCM cluster (and phones + central gateways) in the HQ and 12 sites (with phones and local gateways) all connected via MPLS cloud.


Thanks for any comment.


Everyone's tags (1)
Cisco Employee

I'd recommend you to read the

I'd recommend you to read the SRND before further questions, it's all explained in there.

Simpy put, consider hub_none your HQ, you can change the same, then configure a location for each remote site with the BW they can use.

It'll be a hub and spoke, BW will be deducted from the link from X site to hub_none, and from hub_none to site Y to account for the call.

Again, SRND covers this very nicely.



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