An apparatus and a method for managing communications, wherein the apparatus includes an input component adapted to receive signaling information from a caller communication terminal that is trying to establish a connection with a called communication terminal which is unavailable, an output component adapted to send at least a non-availability message to the caller communication terminal, and a processor configured for determining attempting information on the basis of data generated by the caller communication terminal during a communication attempt, and generating, on the basis of the signaling information and the attempting information, the non-availability message or at least a configuration message allowing the communication between said caller and called communication terminals.