BE6000H: Supports multiple applications (typically 8 to 10) in a single virtualized server platform; maximum capacity of 1000 users, 2500 devices, and 100 contact center agents. Ideal for medium- to large-scale end-to-end collaboration deployments (see Figure 1).
● BE6000M: Supports multiple applications (typically 5 to 7) in a single virtualized server platform; maximum capacity of 1000 users, 1200 devices, and 100 contact center agents. Ideal for medium-scale end-to-end collaboration deployments.
https://www.cisco.com/c/en/us/products/collateral/unified-communications/business-edition-6000/data_sheet_c78-717454.html