General Telephony Course
Master PSTN, VoIP, SIP, dial plans, QoS, and E911 in this comprehensive General Telephony Course. Design resilient voice networks, plan migrations from traditional to IP systems, secure SIP trunks, and deliver reliable, user-friendly telephony solutions for modern telecommunications environments in New Zealand and beyond.

4 to 360 hours flexible workload
valid certificate in your country
What will I learn?
This General Telephony Course provides a practical overview of modern voice systems, including PSTN, TDM PBXs, VoIP, SIP, and RTP. Participants learn to design dialplans, call flows, and numbering schemes, plan migrations, manage analogue devices, and integrate IP or cloud PBXs. Key topics include QoS, security, redundancy, E911, and real-world testing to deploy stable, high-quality calling environments confidently.
Elevify advantages
Develop skills
- Design VoIP systems: plan codecs, call flows, and IP PBX or cloud PBX setups.
- 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, normalise, and test PSTN connectivity.
- Plan PSTN-to-VoIP migration: hybrid setups, number porting, and analogue 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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