This read-write setting controls the administrative state of an individual modem, including down to remove it from service immediately, leave-service to wait for its current call to complete first, up to make it available, run-diagnostics to trigger comprehensive on-line diagnostic tests, reset, and faulty to mark it as out of service and considered unusable. Admins use this fine-grained, per-modem control to manage individual modems independently, for example pulling just one bad modem out of rotation without affecting the rest of its module. For example, after cmmNumBadModems flags a problem on a module, an admin would identify the specific faulty modem and set its cmmModemAdminStatus to faulty so the system stops assigning new calls to it.