You are designing a Communication Manager (CM) 8 solution with centralized ISDN trunks at the main site and two remote gateway locations. Each remote location will be connected to the main server via dedicated, point-to-point WAN service. Main – CM 8.1 duplex pair with 2-G450s and 250 IP stations Remote 1 – S8300E LSP/G450 with 125 IP stations Remote 2 – S8300E LSP/G430 with 30 IP stations.
To ensure that no one site Is overwhelmed by CM traffic, what is the recommended number of network regions required for this design?
A . 7 regions: 1 at the main, 1 at each remote site, 1 for each site’s IP telephones, and one for the virtual network region
B . 4 regions: 1 at the main, 1 at each remote site, and 1 for the virtual network region
C . 3 regions: 1 at the main, and 1 at each remote site
D . 6 regions: 1 at the main, 1 at each remote site, and 1 virtual network region for each site
Answer: C