Telephone Switching Course
Gain hands-on expertise in telephone switching, covering PSTN basics, VoIP protocols like SIP and SS7, QoS management, capacity planning, voice security, pro-level troubleshooting, and smooth shifts from traditional to IP networks for dependable telecom setups.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
This course delivers practical training in telephone switching, starting with TDM and SS7/ISUP basics, advancing to VoIP, SIP, RTP, and gateways. You'll cover QoS, capacity planning, codecs, high availability, migration tactics, interworking, and troubleshooting to build and sustain top-quality voice networks.
Elevify advantages
Develop skills
- Design VoIP capacity by sizing trunks, calls, and QoS needs.
- Set up SIP, RTP, and codecs for top-notch packet voice.
- Secure voice calls with SRTP, SIP TLS, NAT, and firewalls.
- Link PSTN to IP via SS7-SIP gateways and call flows.
- Troubleshoot networks using Wireshark, CDRs, MOS, and RTP tools.
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 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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