“…A first model for telecommunication networks, similar to that introduced recently for car traffic, has been proposed in [9] where two algorithms for dynamics at nodes were considered and existence of solution to Cauchy Problems was proved. The idea is to follow the approach used in [11] for road networks (see also [6], [8], [10], [13], [15], [16], [17]), introducing sources and destinations in the telecommunication model described in [9] and thus taking care of the paths of the packets inside the network.…”