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Mobile Core Package: "2G, 3G, 4G and 5G" Core, SS7 and IMS
Rating: 4.8 out of 5(23 ratings)
89 students

Mobile Core Package: "2G, 3G, 4G and 5G" Core, SS7 and IMS

CS, PS, EPC and NG Core Basics
Created byWaleed Elsafoury, Waleed Elsafoury Academy
Last updated 6/2026
Arabic

What you'll learn

  • Core Network Evolution: Understand the transformation of mobile core networks from 2G/3G to 4G LTE and 5G.
  • Circuit & Packet Switching (CS & PS): Master the architecture and elements of 2G and 3G core networks (MSC, HLR, VLR, GMSC, etc.).
  • 4G Evolved Packet Core (EPC): Deep dive into 4G network architecture, EPS Bearers, QoS, Attach Requests, and Tracking Area Updates (TAU).
  • 5G Next Generation Core (NGC): Explore 5G Use cases, Network Slicing, Dual Connectivity, and 5G Core interfaces.
  • Advanced Voice Services: Understand the mechanisms behind VoLTE, CS Fallback (CSFB), and IMS basics.
  • Call Scenarios & Traffic Flow: Trace step-by-step CS call scenarios, SMS flows, and Location Area Updates (LAU).
  • SS7 Signaling Protocol Stack: Comprehend how network nodes communicate using SS7 layers (MTP, ISUP, SCCP, TCAP, BSSAP, and MAP).
  • Network Security & Identities: Learn about 3G/5G security, and crucial mobile identities (IMSI, IMEI, MSISDN, TMSI).

Course content

7 sections • 67 lectures • 27h 20m total length

  • Introduction6:07

Requirements

  • Nothing is required

Description

Welcome to the ultimate guide on Mobile Core Networks and Signaling Protocols!

While many telecom courses focus heavily on the Radio Access Network (RAN), the true "brain" that controls user data, voice calls, mobility, and security lies in the Core Network. Whether you are an aspiring telecom engineer or a professional looking to transition into the Core/NOC domains, this course gives you the exact knowledge you need.

This masterclass takes you on a comprehensive journey through the backend infrastructure of mobile networks, from legacy systems to the cutting-edge 5G architecture.

What will we cover in this course?

  • 2G & 3G CS/PS Core: We will break down the essential building blocks like the MSC, HLR, VLR, AUC, and EIR. You will learn exactly what happens behind the scenes during Location Area Updates (LAU), SMS delivery, and Circuit Switched Call Scenarios.

  • 4G Evolved Packet Core (EPC): Step into the all-IP era. We will dissect the EPC, exploring E-UTRAN, LTE UE States, EPS Bearers, Quality of Service (QoS), and advanced voice technologies like VoLTE and CSFB, alongside an introduction to IMS.

  • 5G Core Network: Discover the future of connectivity. You will learn about 5G Use Cases, Dual Connectivity, 5G Core elements, and revolutionary concepts like Network Slicing and 5G Security protocols.

  • SS7 (Signaling System No. 7): Network elements need a language to talk to each other. You will master the globally used SS7 protocol suite. We will compare it to the OSI model and deep dive into its layers: MTP (1-3), ISUP, SCCP, TCAP, BSSAP, and MAP.

By the end of this course, you will have a solid, professional-level understanding of how mobile traffic is routed, authenticated, and managed across different generations of cellular technology.

Enroll today and master the core of mobile telecommunications!

Who this course is for:

  • Core Network Engineers & NOC Professionals who want to strengthen their understanding of signaling and architecture.
  • Telecommunications Students & Graduates aiming to build a strong foundation for job interviews in the telecom backend sector.
  • RAN & RF Engineers looking to expand their knowledge beyond the radio interface and understand the end-to-end network.
  • IT & Networking Professionals curious about how mobile operators route calls, manage mobile data, and secure user identities.

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