Message and communication system in network

A message and communication system is presented in a coupled data network. The coupled data network includes an external and a local network. The redeterminal includes an external base station with an external access hub, the external access hub, the external access hub includes a first in-service interconnectivity function. The local network includes a first local interconnectivity function. A first terminalmovil arrangement is a subscriber to the local network and operates within the external network. A first message may be transported between the first mobile terminal arrangement and a first communication server through the first in-service interconnectivity function of the external access hub at the local base station.