Server and method for providing device management service and device receiving the device management service

An enterprise server for providing a Device Management (DM) service, comprising:

• a receiver configured to receive a delegation message delegating DM service authority of a DM server for one or more subscriber devices subscribed to an operator network, from a Network Operator Server (NOS) managing the one or more subscriber devices in the operator network;
• a transmitter configured to transmit a connection request to the one or more subscriber devices to be provided with a DM service, wherein the one or more subscriber devices are in a network of the enterprise server;
• and
• a processor configured to:
• provide a DM service menu to the one or more subscriber devices, the DM service menu having DM information for each service available to the one or more subscriber devices,
• control the receiver to receive a response message including selection information on one or more services selected by each of the one or more subscriber devices through the DM service menu,
• determine a DM service to be provided to the connected subscriber devices based on the selection information,
• provide the determined DM service to the one or more subscriber devices,
• receive one or more DM report messages from the one or more subscriber devices in response to the provided service, and
• report to the NOS a DM result about the DM service provided to the one or more subscriber devices, based on the received one or more DM report messages.