PSTN/ISDN/xDSL Evolution to Broadband convergence Network

摘要

PSTN/ISDN evolution scenarios to broadband convergence network are shown with scenario 1, scenario 2, and scenario 3. Scenario 1 is divided into step 1 and step 2, scenario 2 is also divided into step 1 and step 2, and scenario 3 is a one step approach. While, xDSL evolution scenario to BcN is shown with step 1, step 2, and step 3. All of these evolution scenarios can be guided to operators and operators will implement these scenarios for legacy network evolution to BcN.