Telephony Course
Master modern telephony with practical skills in SIP, VoIP, dial plans, QoS, security, and migration from TDM to IP. This Telephony Course helps telecom professionals design, deploy, and troubleshoot reliable, high-quality voice networks.

from 4 to 360h flexible workload
certificate valid in your country
What will I learn?
This Telephony Course gives you a clear, practical path to designing, deploying, and maintaining modern voice systems. Learn core signaling, 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 workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workload.What our students say
Your classes 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, 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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Course in PDF