[2] The PSTN and ISDN

[2] The PSTN and ISDN

Issued by Wray Castle Limited

The badge earner has studied the PSTN network structure & the evolution towards a fully digital (ISDN) network. They have explored the structure of speech channels & methods of voice encoding. They can compare analogue and digital systems and methods for switching calls within the infrastructure. They are knowledgeable about various numbering schemes for both geographical and non-geographical plans. Additionally, they have analysed basic call message flows and the end-to-end call setup process.

Skills

  • Access and Network Switching Summary
  • Basic Call Process and Set-Up
  • Networks - From Analogue to Digital
  • PSTN Access
  • SS7 - Numbering and Routing
  • Structure of the PSTN
  • Telecoms – Circuit Switching

Earning Criteria

  • Earners of this badge achieved 90% or above in an end of module assessment.