Which two statements describe what is required to set up a Small Community Network (SCN) consisting of four IP500v2 control units? (Choose two.)

Which two statements describe what is required to set up a Small Community Network (SCN) consisting of four IP500v2 control units? (Choose two.)A . The extension, user, and group numbering on each system must be unique.B . The user and group names on each system must be unique.C . Combo Cards are required in...