General Telephony Course
This General Telephony Course provides a practical overview of modern voice systems, including PSTN, TDM PBXs, VoIP, SIP, and RTP. Learners will design dialplans, call flows, and numbering plans, plan migrations from PSTN to VoIP, handle analog devices, and integrate IP or cloud PBXs. The course also covers essential topics like QoS, security, redundancy, E911, and real-world testing to deploy stable, high-quality calling environments confidently in telecommunications settings.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
Gain a fast-paced overview of voice systems from PSTN and TDM PBXs to VoIP, SIP, and RTP. Master designing dialplans, call flows, numbering, migrations, analog device handling, IP/cloud PBX integration, plus QoS, security, redundancy, E911, and practical testing for reliable telephony deployment.
Elevify advantages
Develop skills
- Design VoIP systems: plan codecs, call flows, and IP PBX or cloud PBX.
- Build dialplans: configure DIDs, IVR, hunt groups, and internal extensions.
- Engineer QoS and resilience: tune voice traffic, redundancy, and E911 routing.
- Implement SIP trunks and SBCs: secure, normalize, 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.What our students say
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