Telecom// complete study guide

Foundations

0How a mobile network works (the big picture) 1SMS, end to end 2HLR and VLR

Signalling (SS7)

3SS7 introduction (the plain-words story) 4SS7 deep dive (fields and protocols)

Voice & generations

9Voice calls, from 2G circuit to VoLTE and VoNR 10Every generation: 1G to 6G 114G LTE and the EPC 125G: New Radio and the service-based core

Radio, transport, numbers

13Radio, spectrum and transport (how bits actually travel) 14Identities, numbers, SIMs and services 20Radio engineering: propagation, link budget and network planning 19Fixed access, optical and enterprise networks

Wireless beyond cellular

18Wi-Fi, Bluetooth, short-range and low-power wide-area networks 17Satellite communications and Non-Terrestrial Networks (NTN) 21Public safety, railways, vehicles and emergency communications

Law & regulation

22Regulation, law and the Croatian market

Security & fraud

5The SMS firewall and the fraud landscape 6Most common cases and real incidents 15Security across all generations and the firewall family

Practice & operations

23Protocol trace lab: reading real signalling 24Troubleshooting playbook and career toolkit

Reference & review

16Cheat sheets and comparisons 7Reference 8Self-test

Study tools

A–ZAcronym glossary ⟲Flashcards ?Quizzes §References

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Tool

Quizzes

285 questions in 22 topics. Pick a topic, answer, learn from the explanation.

Choose a quiz