Telephone Switching Course
Gain expertise in telephone switching through hands-on training in PSTN, VoIP protocols like SIP and SS7, QoS optimisation, secure voice implementation, capacity planning, PSTN-IP integration, and advanced troubleshooting with tools like Wireshark. Ideal for telecom professionals aiming to build and manage reliable modern voice networks with seamless migrations.

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, VoIP, SIP, RTP, media gateways, QoS, capacity planning, codecs, high availability, migration strategies, interworking, and troubleshooting for designing and maintaining high-quality voice networks.
Elevify advantages
Develop skills
- Design VoIP capacity by sizing trunks, calls, and QoS requirements.
- Set up SIP, RTP, and codecs for dependable packet voice delivery.
- Deploy secure voice using SRTP, SIP TLS, NAT handling, and firewalls.
- Link PSTN with IP networks via SS7-SIP gateways and call flows.
- Diagnose voice issues with Wireshark, CDRs, MOS scores, and RTP stats.
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.What our students say
Your lessons are perfect. I purchased the one-year package and finally have the opportunity to follow various topics of interest without needing to change platforms... I thank you for everything you do, I've already recommended you to other people...

Giulio CarloDigital Marketing Student
I like how the lessons are straight to the point and how I can change chapters and skip content I don't need.

Mariana FerresPhotography Student
I like the content and the way videos are presented and transcribed, which speeds up the process!

Luciana AlvarengaNail Design Student
The platform is fast, simple to use. The diversity of content and complementary videos really help with learning.

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