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Telephony Course

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

What will I learn?

This Telephony Course provides a straightforward, hands-on guide to designing, setting up, and managing modern voice systems. You'll cover essential signalling, SIP trunks, dialling plans, numbering, session border controllers, gateways, quality of service, codecs, and call quality optimisation. Develop expertise in reliability, security, monitoring, incident handling, and migration strategies to ensure dependable, top-notch voice services across locations and networks.

Elevify advantages

Develop skills

  • Design telephony setups: dialling plans, session border controllers, gateways, and SIP trunks.
  • Optimise VoIP networks: VLANs, quality of service, bandwidth, and real-time traffic adjustments.
  • Enhance call quality: choose codecs, interpret MOS scores, and address jitter, latency, and packet loss.
  • Secure and strengthen voice systems: TLS/SRTP, fraud protection, and high availability clustering.
  • Plan and carry out migrations: from TDM to IP, staged switchovers, and testing after the move.

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 classes are perfect. I got the one-year package and finally have the chance to follow a range of topics I'm interested in without having to switch platforms... thank you for everything you do, I've already recommended you to others...
Giulio Carlo
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 Ferres
Mariana FerresPhotography Student
I like the content and the way the videos are presented and transcribed, which speeds up the process!
Luciana Alvarenga
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 Carlo
Giulio CarloPrompt Engineering Student

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