Log in
Choose your language

Telephone Switching Course

Telephone Switching Course
flexible workload from 4 to 360h
valid certificate in your country

What will I learn?

The Telephone Switching Course gives you a focused, practical path to master circuit and packet voice, from TDM fundamentals and SS7/ISUP to VoIP, SIP, RTP, and media gateways. Learn QoS, capacity planning, codec selection, and high availability, then explore migration strategies, interworking, and troubleshooting tools so you can design, optimize, and maintain reliable, high-quality voice networks.

Elevify advantages

Develop skills

  • Design VoIP capacity: dimension trunks, concurrent calls, and QoS budgets.
  • Configure SIP, RTP, and codecs for reliable, high‑quality packet voice transport.
  • Implement secure voice: SRTP, SIP TLS, NAT traversal, and firewall policies.
  • Integrate PSTN and IP: SS7–SIP interworking, media gateways, and call flows.
  • Troubleshoot voice networks using Wireshark, CDRs, MOS tools, and RTP analysis.

Suggested summary

Before starting, you can change the chapters and workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workload.
Workload: between 4 and 360 hours

What our students say

Your classes are perfect. I purchased the one-year package and finally have the chance to follow several topics I'm interested in without needing to switch platforms... I appreciate everything you do, I've already recommended you to others...
Giulio Carlo
Giulio CarloDigital Marketing Student
I like how the lessons are straight to the point and how I can switch chapters and skip content I don't need.
Mariana Ferres
Mariana FerresPhotography Student
I like the content and the way the videos are presented and transcribed, which speeds up the process!
Luciana Alvarenga
Luciana AlvarengaNail Design Student
The platform is fast and easy to use. The variety of content and the supplementary videos really help with learning.
Giulio Carlo
Giulio CarloPrompt Engineering Student

FAQ

Who is Elevify? How does it work?

Do the courses have certificates?

Are the courses free?

What is the course duration?

What are the courses like?

How do the courses work?

What is the duration of the courses?

What is the cost or price of the courses?

What is an EAD or online course and how does it work?

PDF Course