Survivability of the public switched network integration of market, switching, transmission and OA&M considerations in network design

The public switched network has undergone significant evo lution over the last several decades. While survivability of the network has been an important consideration throughout this evolution, it was often survivability of individual network components rather than the network as a whole. The Hinsdale central office fire proved the need for integration and equal consideration of all network components in network design for survivability. Ongoing integration will become increasingly important if the public switched network is to keeppace with future advances in technology and demands from the marketplace for reliable quality service.