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Telephone Switching Course

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

What will I learn?

This Telephone Switching Course offers a targeted, hands-on route to mastering circuit and packet voice technologies, spanning TDM basics and SS7/ISUP through to VoIP, SIP, RTP, and media gateways. Delve into QoS, capacity planning, codec choices, and high availability measures, followed by migration approaches, interworking solutions, and diagnostic tools essential for designing, refining, and sustaining robust, superior-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 the 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 lessons are perfect. I purchased the one-year package and finally have the chance to follow several topics I'm interested in without having to switch platforms... thank you for everything you do, I've already recommended you to others...
Giulio Carlo
Giulio CarloDigital Marketing Student
I like how the lessons get 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

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