Telephone Switching Course
Gain hands-on expertise in telephone switching, covering PSTN basics, VoIP tech like SIP and SS7, QoS management, and network design. Master capacity planning, voice security, pro troubleshooting, and smooth shifts from PSTN to IP in today's telecom world. This course equips you to build and maintain solid voice systems with real-world skills.

flexible workload of 4 to 360h
valid certificate in your country
What will I learn?
Dive into telephone switching with practical training on circuit and packet voice tech, from TDM and SS7/ISUP basics to VoIP, SIP, RTP, and gateways. Cover QoS, capacity planning, codecs, high availability, migration plans, interworking, and troubleshooting to design, boost, and run dependable 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 calls with SRTP, SIP TLS, NAT fixes, and firewall rules.
- Link PSTN to IP via SS7-SIP gateways and call flows.
- Fix voice issues using Wireshark, CDRs, MOS, and RTP checks.
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 workloadWhat 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... I appreciate everything you do, and 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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