A method enables communication between a line termination device and at least one network termination device, the line termination device being connected by at least one line to the at least one network termination device. The method includes a step in which frames containing content data are transmitted by the line termination device via the line to at least one of the at least one network termination devices. Reconfiguration data is sent by the line termination device to at least one of the network termination devices, the reconfiguration data being specific to a communication protocol to be used for the transmission of the above-mentioned frames and enabling the reconfiguration of a modem of the destination network termination device.