Skip to content
5G/6G Academy
TELCOMA 5G Core & E2E Specialist

5G Core & E2E Specialist

Trace every message of the procedures that define 5G, then engineer QoS, slicing, edge, security and voice end-to-end — and hold an informed conversation about 5G-Advanced and 6G.

Watch the free lessonJoin for free
38 lessons≈5.1h of video8 modulesEarns TELCOMA 5G Core & E2E Specialist

What you'll learn

  • Learn to read any call flow, then trace registration, PDU session, modify/release and N4/PFCP message by message.
  • Build a QoS/policy design from SLA to 5QI.
  • Design and defend a slice architecture.
  • Place workloads for latency and run the core like a SaaS.
  • Walk the 5G trust chain from SIM to roaming partner.
  • Explain how calls, texts and constrained devices ride a data-only network.
  • Brief your team on what Rel-18/19 makes possible today.
  • Hold an informed 6G conversation — scenarios, timeline, technologies.

Prefer to read? The same ground is covered in writing in 5G Core Network (Level 4) and 5G Signaling & Procedures (Level 5).

Module 15 — Core Procedures Deep Dive

5 lessons · 1 lab · ≈46 min

Learn to read any call flow, then trace registration, PDU session, modify/release and N4/PFCP message by message.

  1. 1
    The core reassembled — the NF line-up, and how to read a call flowWatch free
    6:39
  2. 2
    Registration, end to endFree with an account
    8:04
  3. 3
    PDU session establishment — the full choreographyFree with an account
    9:05
  4. 4
    Session modification & release — and the sessions that sleepFree with an account
    8:26
  5. 5
    N4 and PFCP — how the SMF drives the UPFFree with an account
    9:10
  6. Fix the Broken SessionInteractive Lab

    The SMF says the PDU session is up and uplink works — nothing comes back. Read the PFCP rules it pushed to the UPF and repair them.

    ~6 min

Module 16 — QoS, Policy & Charging

4 lessons · 1 lab · ≈26 min

Build a QoS/policy design from SLA to 5QI.

  1. 1
    5QI and QoS flows — deep diveRequires subscription
    8:16
  2. 2
    PCF: policy as the network's rulebookRequires subscription
    8:19
  3. 3
    Charging with CHFRequires subscription
    7:51
  4. 4
    Engineering an SLA end-to-endRequires subscription
    10:57
  5. Engineer the SLAInteractive Lab

    Four services, one network. Assign each the 5QI that meets its delay, loss and resource requirement — and no more than that.

    ~6 min

Module 17 — Network Slicing

4 lessons · 1 lab · ≈26 min

Design and defend a slice architecture.

  1. 1
    What a slice really is — and its identifier, the S-NSSAIRequires subscription
    8:03
  2. 2
    Slice selection, step by stepRequires subscription
    11:20
  3. 3
    Slicing the RAN — keeping slices apart on the airRequires subscription
    10:44
  4. 4
    Selling slices — exposing the network through NEFRequires subscription
    9:45
  5. Select the SliceInteractive Lab

    A UE registers asking for four slices. Build the Allowed NSSAI from subscription and AMF capability, then decide whether the registration has to move.

    ~6 min

Module 18 — Edge & Cloud-Native Operations

5 lessons · 1 lab · ≈33 min

Place workloads for latency and run the core like a SaaS.

  1. 1
    MEC & local breakout — bringing the exit closerRequires subscription
    8:52
  2. 2
    UPF placement decides your latency budgetRequires subscription
    7:56
  3. 3
    Containers & orchestration — why the core runs like softwareRequires subscription
    7:52
  4. 4
    Service mesh & the SBA fitRequires subscription
    8:12
  5. 5
    Observability & NWDAF — the network's analytics brainRequires subscription
    7:58
  6. Place the UPFInteractive Lab

    Slide one user plane function toward the user and discover there is no position that serves all four services — then break them out separately.

    ~6 min

Module 19 — 5G Security

6 lessons · 1 lab · ≈40 min

Walk the 5G trust chain from SIM to roaming partner.

  1. 1
    Why 5G trusts nothing — the trust chain at a glanceRequires subscription
    9:02
  2. 2
    5G-AKA: authentication, step by stepRequires subscription
    9:43
  3. 3
    From one long-term secret to the anchor key — what 5G-AKA just provedRequires subscription
    6:02
  4. 4
    The key hierarchy — one level at a timeRequires subscription
    6:41
  5. 5
    NAS, AS and non-3GPP access securityRequires subscription
    7:35
  6. 6
    Guarding the borders — SEPP, roaming and the zero-trust closeRequires subscription
    8:29
  7. Climb the Key HierarchyInteractive Lab

    Build the 5G key chain from the long-term secret down to the radio keys, then answer the one that catches everyone: which rung crosses the air?

    ~7 min

Module 20 — Voice, Messaging & Devices

5 lessons · 1 lab · ≈33 min

Explain how calls, texts and constrained devices ride a data-only network.

  1. 1
    What IMS is — the voice subsystem 5G reusesRequires subscription
    8:08
  2. 2
    VoNR call setup — placing a call over 5GRequires subscription
    7:01
  3. 3
    EPS fallback — the safety netRequires subscription
    7:03
  4. 4
    Messaging: SMS over NAS and RCSRequires subscription
    7:14
  5. 5
    RedCap, eRedCap and Ambient IoT — the device spectrumRequires subscription
    7:48
  6. Route the CallInteractive Lab

    Four subscribers press dial. Read five network and device conditions and say whether each call rides VoNR, falls back to LTE, or fails.

    ~6 min

Module 21 — 5G-Advanced, Now

5 lessons · 1 lab · ≈33 min

Brief your team on what Rel-18/19 makes possible today.

  1. 1
    5G-Advanced at a glance: the Rel-18 & Rel-19 mapRequires subscription
    6:55
  2. 2
    AI/ML across the network: AI-RAN and NWDAF-driven automationRequires subscription
    7:04
  3. 3
    NTN: 5G from spaceRequires subscription
    7:10
  4. 4
    XR & immersive servicesRequires subscription
    7:21
  5. 5
    The awareness plane: positioning, sensing groundwork & energyRequires subscription
    7:02
  6. Pick the OrbitInteractive Lab

    Move a satellite from LEO to GEO and watch orbital mechanics set your latency, your constellation size and your handover rate — then choose an orbit per service.

    ~6 min

Module 22 — The Road to 6G + Capstone

4 lessons · 1 lab · ≈26 min

Hold an informed 6G conversation — scenarios, timeline, technologies.

  1. 1
    IMT-2030: the six usage scenariosRequires subscription
    7:10
  2. 2
    Rel-20 studies and the path to Rel-21Requires subscription
    7:09
  3. 3
    Research frontiers: ISAC, AI-native, FR3 and sub-THzRequires subscription
    8:12
  4. 4
    Capstone briefing: the end-to-end system, one last buildRequires subscription
    7:47
  5. Build the End-to-End SystemInteractive Lab

    The capstone. One private-5G brief, five decisions from five different modules — and the lab checks them against each other, not just against the brief.

    ~10 min

New to the terminology? Look up any acronym in the telecom glossary.

Take the certification exam

Earns a certificate

56 questions · 70 min · 65% to pass. Score 65%+ to earn your TELCOMA Certified 5G Core & E2E Specialist — a QR-verifiable certificate.

Not ready yet? Take a free 20-question mock exam first.

Hands-on labs in this course

Apply each concept the moment you learn it — inspect real traces, debug configs and logs, and run a live 5G core.

Sandbox
Your First 5G UE Registration
Beginner20 min
Packet trace
5G Registration Failure — Metropolitan Region
Intermediate15 min
Sandbox
Debug a Failed UE Registration
Advanced30 min
Sandbox
Establishing a PDU Session
Intermediate25 min
Packet trace
5G PDU Session — Find the QoS Flow Setup Failure
Intermediate20 min
Sandbox
Break the Core: What Happens When the UPF Dies
Advanced30 min
Packet trace
Network Slicing End-to-End — Trace a Slice Selection
Advanced35 min
Config
NSSAI Design — BMW Munich Private 5G
Intermediate25 min
Log debug
Core Overload — AMF During Super Bowl Surge
Advanced35 min
Packet trace
SUCI / SUPI Privacy — Tracing Subscriber Privacy in 5G
Intermediate20 min
Packet trace
5G Roaming (Home-Routed) — Tracing SEPP and N32
Advanced30 min
Packet trace
VoNR Call Setup — Successful End-to-End
Intermediate25 min
Packet trace
IMS VoNR Registration — Debugging a SIP 401 Loop
Intermediate20 min

See all hands-on scenarios

7-day money-back guarantee

Unlock every lesson in 5G Core & E2E Specialist

Stream all 38 lessons, follow the 8-module path, and earn the TELCOMA 5G Core & E2E Specialist certificate.

  • Every module unlocked
  • Labs & full-length practice exams
  • Verifiable certificate
  • TELCOMA since 2009
See Pro plans Or watch a free lesson — no signup