The invention relates to a method of processing digital data constituting a signal in a distributed communication network comprising a plurality of communication apparatuses, the signal being identified by a unique identifier (ID), characterized in that the method comprises the following steps: storing one or more parts of the signal, termed exploitable parts of the signal, at one at least given address of a memory location and in a format readable by an application, associating the unique identifier of the signal with each exploitable part of the signal, storing in at least one communication apparatus a data structure establishing a link between each exploitable part of the signal and the unique identifier of that signal.