Telephony Course
This course equips learners with practical skills to design, optimize, secure, and migrate modern telephony systems, ensuring reliable and high-quality voice services across diverse networks.

flexible workload from 4 to 360h
valid certificate in your country
What will I learn?
This Telephony Course provides a straightforward, hands-on guide to setting up, rolling out, and keeping up modern voice setups. You will learn key signalling, SIP trunks, dial plans, numbering, SBCs, gateways, QoS, codecs, and tuning call quality. Develop abilities in reliability, security, monitoring, handling incidents, and planning migrations to offer steady, top-notch voice services over various sites and networks.
Elevify advantages
Develop skills
- Design telephony setups: dial plans, SBCs, gateways, and SIP trunks.
- Optimise VoIP networks: VLANs, QoS, bandwidth, and tuning real-time traffic.
- Enhance call quality: choose codecs, interpret MOS, and address jitter, delay, and loss.
- Secure and strengthen voice systems: TLS/SRTP, preventing fraud, and HA clustering.
- Plan and carry out migrations: from TDM to IP, phased switchovers, and testing after move.
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.

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 help a lot with learning.

André FelipePrompt Engineering Student
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