The Network Functions,
one at a time.
Eight core functions, each dissected at expert depth — role, services, every service operation, the messages and Information Elements they carry, timers, and reference points, all cited to the exact 3GPP clause. Every function has a full narrated, animated video with English subtitles. Pick a function to begin.
TS 23.501 §6.2 · TS 23.502 §5.2 · TS 24.501 §8.2 · TS 29.502/29.503/29.510 · TS 33.501AMF — the anchor of 5G signalling
Core functions
Reference points
Service-based interface
The AMF — complete theory
Everything, organised: the architecture, every service and operation, the Information Elements, and the full connectivity — each area is expandable, and every claim carries its exact 3GPP clause.
Architecture & connectivity — animated
Deep dive — expand each area
Connectivity — every interface, and what flows on it
| Interface | Peer | Protocol | What it carries | Spec |
|---|
Key concepts & identifiers
Procedures this function drives
The AMF, message by message
Animation-per-sentence, English karaoke subtitles, fullscreen. Every claim carries its 3GPP clause.
Namf — every service, every operation
The complete service menu the AMF exposes on the bus, from TS 23.502 §5.2.2. Filter to find any operation.
| Service | Operation | What it does | Clause |
|---|
What the AMF speaks on N1 — the NAS messages
Every 5GMM message the AMF sends or receives (TS 24.501 §8.2), and the full Information-Element breakdown of the two most important ones.
AMF mastery check
Shuffled every load. 70%+ to pass.