A technique is provided for remote administration, by an administration apparatus, of a device belonging to a private communication network. The device sends administration data to the administration apparatus via an access network. The administration data includes a first item of connection data and a contact number associated with the device in a signalling network. In order to administer the device, the administration apparatus sends a connection request to the device via the signalling network by using the received contact number. This connection request triggers the establishment of a session by the device with the administration apparatus via the access network.