Telephone Switching Course
Gain expertise in telephone switching through hands-on training in PSTN systems, VoIP protocols including SIP and SS7, QoS optimisation, network capacity planning, voice security measures, advanced troubleshooting with tools like Wireshark and RTP analysers, and strategies for seamless PSTN-to-IP transitions in contemporary telecom environments.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
This course provides a practical guide to mastering telephone switching, covering TDM basics, SS7/ISUP protocols, VoIP technologies like SIP and RTP, media gateways, QoS management, capacity planning, codec choices, high availability setups, migration plans, interworking solutions, and troubleshooting methods for building and maintaining top-quality voice networks.
Elevify advantages
Develop skills
- Design VoIP capacity by sizing trunks, handling concurrent calls, and allocating QoS resources.
- Set up SIP, RTP, and codecs to ensure dependable, high-quality packet voice delivery.
- Deploy secure voice solutions featuring SRTP, SIP TLS, NAT traversal, and firewall configurations.
- Connect PSTN with IP networks via SS7-SIP interworking, media gateways, and call flow management.
- Diagnose voice network issues using Wireshark, CDRs, MOS testing, and RTP examination tools.
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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