PSTN Fundamentals
How the fixed public switched telephone network carries a voice call from one telephone to another, anywhere in the world. You will learn how subscriber lines, digital exchanges, numbering, signalling and interconnection work together to set up, carry and bill a call.
PSTN Fundamentals is the second course of the Telecom Foundations path and builds on Telecom Fundamentals. It follows a telephone call end to end: from the subscriber line and the local exchange through digital switching, numbering and routing, channel-associated and SS7/C7 signalling, intelligent network services and interconnection between operators, to the media gateways and IP networks that are replacing circuit switching today. The course ends with an interactive review that follows a national call from off-hook to release.
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View plansPSTN Fundamentals Badge
Passing the final exam earns the PSTN Network Engineer achievement and counts towards the TelcoSec Telecom Foundations certification, which needs the final exams of all five Foundations courses: Telecom, PSTN, ADSL, GSM and SIM Cards Fundamentals. It shows you can explain how the fixed network carries a call from the subscriber line through digital exchanges, numbering and SS7/C7 signalling to interconnection and billing.