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General Telephony Course

General Telephony Course
from 4 to 360h flexible workload
certificate valid in your country

What will I learn?

This course offers a hands-on introduction to telephony systems, covering traditional PSTN and TDM PBXs alongside modern VoIP, SIP, and RTP protocols. Participants will learn to create dial plans, manage call routing, plan system upgrades, support legacy devices, and integrate IP or cloud-based PBXs. Key topics include ensuring call quality through QoS, implementing security measures, building redundancy, handling emergency services like E911, and conducting practical tests for reliable voice deployments.

Elevify advantages

Develop skills

  • Design VoIP systems by planning codecs, call flows, and IP or cloud PBX setups.
  • Create dial plans including DIDs, IVR menus, hunt groups, and extension configurations.
  • Optimise QoS and system resilience with voice traffic tuning, redundancy, and E911 setup.
  • Deploy SIP trunks and session border controllers for secure PSTN integration and testing.
  • Strategise PSTN to VoIP transitions involving hybrid systems, number porting, and analogue support.

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.
Workload: between 4 and 360 hours

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...
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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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Mariana FerresPhotography Student
I like the content and the way videos are presented and transcribed, which speeds up the process!
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Luciana AlvarengaNail Design Student
The platform is fast, simple to use. The diversity of content and complementary videos help a lot with learning.
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