Core & IMS Learning

Master Core & IMS Technologies.

High-end technical training for telecom engineers. Master 4G/5G Core and IMS architecture through specialized, hands-on professional courses. 

Why Core & IMS Learning ?

Telecom networks are becoming more complex with every new generation, and mastering the core of the network is no longer optional—it’s essential. At Core & IMS Learning, we focus on what truly matters: deep technical understanding, real network behavior, and practical skills engineers use in live operator environments.

Our training is built by a core-network specialist, not generic content creators. Each course explains how things really work—from VoLTE and VoWiFi call flows to EPC, 5G Core, IMS signaling, CS interworking, and legacy protocols—breaking down procedures, message flows, KPIs, failures, and troubleshooting logic step by step.

Across generations—from legacy CS and SS7 to EPC, IMS, and 5G Core—we help engineers connect the dots instead of learning technologies in isolation. Whether preparing for a core-network role, upgrading skills for VoLTE or 5G projects, or troubleshooting real production issues, Core & IMS Learning takes you from theory to true engineering confidence—without shortcuts or hype.

15 years

of experience

+120

Countries

+200K

Successful students

+300

Mobile operators  Enterprise companies 

Our Curriculum

3GPP Standards & vendor -Neutral

Read. Watch. Learn.

Boost your confidence, master "the field".

Courses


VoLTE & IMS

$15/month

Deep dive into IMS, signaling, KPIs, failures, and real operator troubleshooting scenarios


5G Core

$15/month

Understand SBA, AMF, SMF, UPF, service flows, mobility, sessions, and deployment challenges


SIP Protocol

$15/month

Understand SIP messages, headers, timers, responses, and real-world signaling failure scenarios


VoWiFi

$15/month

Understand ePDG, IMS integration, call flows, security, KPIs, and real-world failure scenarios


EPC and PS Core

$15/month

Deep dive into attach, bearer setup, GTP, QoS, mobility handling, and performance optimization


CS Core

$15/month

Deep dive into GSM and UMTS CS procedures, call flows, and real troubleshooting scenarios


SS7 Signaling and SIGTRAN

$15/month

Deep dive into legacy SS7, IP transport, protocols, interfaces, and troubleshooting techniques


CSFB

$15/month

Deep dive into LTE to CS fallback signaling, MSC coordination, paging, and failure scenarios

Smart Bundles - Best Value

Maximum value packages with significant savings

VOIP & SIGNALING

$20/month

Save $10/month

The fundamentals of protocol communication.
  • SIP, SS7 & SIGTRAN 
  • SIP Call Flows, Timers, Headers & Error Handling
  • SS7 Architecture, MAP, ISUP & Call Scenarios
  • SIGTRAN Protocol Stack & Transport Mechanisms
  • Interworking Between SIP, SS7 & Legacy Networks

Mobile Core Pro

$30/month

Save $15/month

The complete "Heart of the Network" package.
  • 5G Core, PS & EPC, CS Core
  • 5G Core Architecture, Procedures & Key Interfaces
  • EPC & PS Core End-to-End Call Flows
  • CS Core Fundamentals & Legacy Interworking Scenarios
  • Mobility, Sessions & QoS Optimization Across Generations

Voice Master

$40/month

Save $20/month

End-to-end modern carrier voice solutions.
  • VoLTE, SIP, CS Core, VoWiFi
  • End-to-End Call Flows Explained
  • Signaling, Timers, Errors & Troubleshooting
  • CS Core, CSFB & SRVCC Interworking Scenarios
  • Voice Quality KPIs & Optimization Across Networks

Complete Telecom

60/month

Save $60/month

The "Best Value" for a total career transformation.
  • 5G Core, VoLTE, SIP, PS & EPC, CS Core, VoWiFi, SS7 & SIGTRAN, CSFB
  • End-to-End Mobile Voice/Packet Core Network Technologies
  • VoLTE, VoWiFi, CSFB & Legacy Interworking Explained
  • 5G Core, EPC, PS & CS Architectures Demystified
  • SIP, SS7 & SIGTRAN Signaling and Call Flows

Latest from our blog

What our learners say

I am learning loads of new information concerning CORE and IMS learning. The instructor is very thorough and easy to listen to..
Sharolyn G.
easy to understand and great comparison between old and new technology.


Jeremy C.
The instructor is amazing




Tanvir Hassan M.
It very helpful to understand the basic concept SIP and how to send message and connect to the network

Dwi H.

Ready to Advance your Telecom Career ?
Join thousands of professionals who have transformed their careers with Core & IMS Learning.

Frequently asked questions

What can you offer that I cannot get at other online schools?

With us you will have the opportunity to learn from some of the most notable professionals in the field. We are intricately involved with education across the U.S. Our students regularly participate in local, state-wide, and national workshops and festivals.

Do I need previous experience ?

There’s no need to have any prior knowledge for courses. We'll teach you from the ground up you’ll gain all the knowledge and skills you need to become a data scientist.

How can I choose my courses?

We offer a number of different learning paths, which you are invited to read and choose the one that better meets your needs. However if you need any advice or clarifications, we are at your disposal at any time.

When can I start studying ?

You may enroll any day of the year. Be online and start studying within a matter of seconds after enrolling.

How are these courses different from other online telecom courses?

These courses are built by a core-network specialist with real operator experience. Instead of generic theory, we focus on real call flows, signaling messages, KPIs, failure scenarios, and troubleshooting logic exactly as they appear in live networks. The goal is not memorization—but true understanding of how telecom networks actually work.

Are the courses practical or mostly theoretical?

The courses are highly practical. Every topic is explained using real network scenarios, detailed call flows, protocol messages, KPIs, and common failure cases. Theory is only used to support understanding of real-world behavior, not as an end by itself.
Created with