General Telephony Course
Gain comprehensive expertise in PSTN, TDM PBXs, VoIP, SIP, RTP, dial plans, call routing, QoS, security, redundancy, E911, and migration strategies through this intensive General Telephony Course. Develop skills to design robust voice networks, implement secure SIP trunks, handle hybrid migrations, support analog integrations, and deliver stable, high-performance telephony solutions tailored for contemporary telecom needs.

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.What our students say
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