EVOLUTION OF BEIJING TELECOM'S ISDN NETWORK

Today, Beijing Telecom has acquired considerable scale in the preliminary N-ISDN development. As the ISDN fonctions of all switches are improving with each passing day, it is time to consider the optimization and adjustment of network and routing structures and the unification of signaling over the entire network. With the renovation and construction of tendem offices in Beijing, a proposal has been put forward for the construction of an all ISUP ISDN network.