Device for communication management (Secu01 Secu02) comprising storage means and processing means, disposed in a telecommunications network comprising at least one base station linked by radio frequency waves with at least a first terminal, the base station being connected, by a first communication line (Abis1), to a device for controlling the base station, the controlling device being connected, by a second communication line, to a router (Rout1), characterised in that the device is disposed on the first or respectively the second line, and is activated, by means for activation in the event of degradation of the first or respectively the second line and in that the device comprises at least one programme for searching for connected terminals and for communication management, activatable in the event of a disaster, installed directly in the storage means of the device for communication management, and implemented by the processing means of the device for communication management, or installed in the storage means of a base station or the storage means of a controlling device and implemented by processing means of the base station or processing means of the controlling device respectively, or residing in a key or a cartridge and connectable in the place of the damaged communication line, the programme containing the following management software modules to simulate at least three layers of communication: - a module for communication management taking the form of a programme (PRG_Rout) to simulate a layer of mediation making it possible to make management commands recorded in an ad hoc layer compatible with known commands of the base station or the controlling device, or to send dummy replies so as to conform to the protocol for communication with the base station or the controlling device, to this end the device for communication management comprising a port for connection to a signalling line, - a set of transport modules taking the form of a programme (PRG_GAT) for management of interfaces of networks to simulate a transport layer making it possible to convert messages in the protocols of the different networks which are still usable and to broadcast these messages, to this end the device for communication management comprising one or more interfaces for communication with a port connected to a network (Res) distinct from the telecommunications network, these modules interacting with one another and searching for operational links in order to establish and use routing tables (TAB_Rout, TAB_GAT), these routing tables being recorded in said ad hoc layer. - a module for communication management taking the form of a programme (PRG_Rout) to simulate a layer of mediation making it possible to make management commands recorded in an ad hoc layer compatible with known commands of the base station or the controlling device, or to send dummy replies so as to conform to the protocol for communication with the base station or the controlling device, to this end the device for communication management comprising a port for connection to a signalling line, - a set of transport modules taking the form of a programme (PRG_GAT) for management of interfaces of networks to simulate a transport layer making it possible to convert messages in the protocols of the different networks which are still usable and to broadcast these messages, to this end the device for communication management comprising one or more interfaces for communication with a port connected to a network (Res) distinct from the telecommunications network, these modules interacting with one another and searching for operational links in order to establish and use routing tables (TAB_Rout, TAB_GAT), these routing tables being recorded in said ad hoc layer.