Telephony Course
This course equips you with essential skills to design, deploy, and maintain modern telephony systems, focusing on VoIP technologies, network optimization, security, and migration strategies for reliable voice services.

4 to 360h flexible workload
certificate valid in your country
What will I learn?
This Telephony Course provides a clear, practical path to designing, deploying, and maintaining modern voice systems. Learn core signalling, SIP trunks, dial plans, numbering, SBCs, gateways, QoS, codecs, and call quality tuning. Build skills in reliability, security, monitoring, incident response, and migration planning so you can deliver stable, high-quality voice services across sites and networks.
Elevify advantages
Develop skills
- Design telephony architectures: dial plans, SBCs, gateways, and SIP trunks.
- Optimize VoIP networks: VLANs, QoS, bandwidth, and real-time traffic tuning.
- Improve call quality: select codecs, read MOS, and fix jitter, delay, and loss.
- Secure and harden voice systems: TLS/SRTP, fraud prevention, and HA clustering.
- Plan and execute migrations: TDM to IP, phased cutovers, and post-move testing.
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 are saying
Your classes are perfect. I purchased the one-year package and finally have the opportunity to follow various topics of interest without needing to switch 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 presentation style and video transcription, 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.

André FelipePrompt Engineering Student
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