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General Telephony Course

General Telephony Course
4 to 360 hours of flexible workload
certificate valid in your country

What Will I Learn?

This course offers a practical overview of voice systems including PSTN, TDM PBXs, VoIP, SIP, and RTP. Participants will learn to design dial plans, call flows, and numbering schemes, plan migrations from PSTN to VoIP, manage analog devices, and integrate IP or cloud PBXs. Key topics also include QoS optimisation, security measures, redundancy planning, E911 services, and practical testing to ensure deployment of reliable, high-quality telephony environments.

Elevify Advantages

Develop Skills

  • Design VoIP systems: select codecs, engineer call flows, and deploy IP PBX or cloud PBX setups.
  • Create dial plans: set up DIDs, IVR menus, hunt groups, and extension routing.
  • Optimise QoS and resilience: prioritise voice traffic, configure redundancy, and route E911 calls.
  • Deploy SIP trunks and SBCs: secure connections, normalise signalling, and verify PSTN links.
  • Strategise PSTN-to-VoIP transitions: manage hybrid systems, port numbers, and support legacy devices.

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 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 switch 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 really help with learning.
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