This control object is used to change the service state of the MG from 'inService' to 'commandedOutOfService' and from 'commandedOutOfService' to 'inService'. The resulting service state of the gateway is represented by 'mgAdministrativeState'. If set, this object triggers the following: 'inService': Transition 'mgAdministrativeState' to 'inService'. In the course, the MG's MGCs may get notified of this transition, e.g. in the case of MGCP through emission of RSIPs to registered call agents according to policy. 'forcefulOutOfService': Take the gateway out-of-service forcefully. This releases any resources at the MG. In the course, the MGCs may get notified of this transition, e.g. in the case of MGCP through emission of RSIPs to registered call agents according to policy. 'gracefulOutOfService': Take the gateway out-of-service gracefully. If there are no resources existing, 'mgAdministrative' transitions to 'commandedOutOfService' immediately. If resources exist, 'mgAdministrativeState' transitions to 'pendingOutOfService' thus initiating a graceful shutdown. In the course, the MGs MGCs may get notified of this transition, e.g. in the case of MGCP through emission of RSIPs to registered call agents according to policy.