Telephone Switching Course
Gain hands-on expertise in telephone switching for PSTN and VoIP networks. Master SS7, SIP, RTP, QoS planning, secure voice protocols, media gateways, and pro troubleshooting tools like Wireshark. Design reliable systems, optimise capacity, and handle smooth transitions to IP-based telecom in today's networks.

from 4 to 360h flexible workload
certificate valid in your country
What will I learn?
This course offers a practical guide to mastering telephone switching, covering TDM basics, SS7/ISUP, VoIP, SIP, RTP, and media gateways. You'll gain skills in QoS management, capacity planning, codec choices, high availability setups, migration plans, interworking solutions, and troubleshooting to build and maintain top-notch voice networks.
Elevify advantages
Develop skills
- Design VoIP capacity by sizing trunks, calls, and QoS needs.
- Set up SIP, RTP, and codecs for clear, dependable packet voice.
- Apply security like SRTP, SIP TLS, NAT handling, and firewall rules.
- Link PSTN with IP using SS7-SIP gateways and call flows.
- Diagnose issues with Wireshark, CDRs, MOS scores, and RTP checks.
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.What our students say
Your classes are perfect. I got 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 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 FerresPhotography Student
I like the content and the way the videos are presented and transcribed, which speeds up the process!

Luciana AlvarengaNail Design Student
The platform is fast and easy to use. The variety of content and the extra videos really help with learning.

Giulio CarloPrompt Engineering Student
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