For SemplicityI have number of CCM in One cluster. extention number from 2000 to 2999. So how can I install another building or site haveing the same range of extention in the same cluster. I mean for ex:If each site in a diff. partition soext. 2000 ...

For simplicity, I have 3 CCM in 3 diffrent cities ( let say A , B , and C ). Publisher is in my LAN ( site A ) and the other CCM in B and C . because of firewall , I connect to CCM administration in site B. while I'm browsing IP phone sets in site C ...