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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?

Gain practical insights into modern voice systems from PSTN and TDM PBXs to VoIP, SIP, and RTP. Master designing dialplans, call flows, and numbering, planning migrations, handling analog devices, and integrating IP or cloud PBXs. Explore QoS, security, redundancy, E911, and real-world testing for confident deployment of reliable telephony solutions.

Elevify advantages

Develop skills

  • Design VoIP systems: plan codecs, call flows, and IP PBX or cloud PBX setups.
  • Build dialplans: set up DIDs, IVR, hunt groups, and internal extensions.
  • Engineer QoS and resilience: optimise voice traffic, redundancy, and E911 routing.
  • Implement SIP trunks and SBCs: secure, normalise, and test PSTN connectivity.
  • Plan PSTN-to-VoIP migration: hybrid setups, number porting, and analog device support.

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.
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 interest without needing to change platforms... I'm grateful for everything you do, I've already recommended you to other people...
Giulio Carlo
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 Ferres
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 really help with learning.
André Felipe
André FelipePrompt Engineering Student

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