Provided is a method for controlling exchanges of data streams between at least one source connected to a hybrid wide area telecommunication network via a local area access network and at least one recipient connected to the wide area telecommunication network via a remote access network. The method includes the steps of: setting new transfer rules through the analysis of the streams, dynamically creating at least one additional stream exchange path from the new transfer rules and the access rules in force, applying on the additional path burn-in, securization and optimization mechanisms for the stream transfers between the local area access network and the remote access network, and transferring each new stream to the recipient via the additional path according to the new transfer rules.