PSTN/ISDN evolution scenarios to Broadband A c Sei convergence Network are shown with scenario 1, scenario2, and scenario 3. Scenario 1 is divided into step 1 and step 2 as shown in __ Figure 2, scenario 2 is also divided into step 1 and step 2 as shown |u| in Figure 3, and scenario 3 is one step approach as Figure 4. h0gtion. While, xDSL evolution scenario to BcN is shown with step 1, step /e_ 2, and step 3 as shown in Figure 5. All of these evolution scenarios can be guided to operators and operators will implement these W Teles lh e scenarios for legacy network evolution to BcN.
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