Telephone Switching Course
Gain hands-on expertise in telephone switching for PSTN and VoIP networks. Master SS7, SIP, RTP, QoS optimisation, secure voice protocols, capacity planning, PSTN-IP integration, and advanced troubleshooting with tools like Wireshark. Perfect for designing reliable, high-performance telecom voice systems in today's networks.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
This course offers a practical guide to mastering telephone switching, covering TDM basics, SS7/ISUP, VoIP protocols like SIP and RTP, media gateways, QoS management, capacity planning, codec choices, high availability setups, migration plans, interworking solutions, and troubleshooting for building and maintaining top-notch voice networks.
Elevify advantages
Develop skills
- Design VoIP capacity by sizing trunks, handling concurrent calls, and budgeting for QoS.
- Set up SIP, RTP, and codecs to ensure reliable, high-quality packet voice delivery.
- Deploy secure voice features including SRTP, SIP TLS, NAT traversal, and firewall rules.
- Connect PSTN with IP networks via SS7-SIP interworking, media gateways, and call flows.
- Diagnose voice network issues using Wireshark, CDRs, MOS metrics, and RTP packet analysis.
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 lessons are perfect. I purchased the one-year package and finally have the opportunity to follow various topics of my 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.

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