Telephone Switching Course
Gain hands-on expertise in telephone switching for PSTN and VoIP networks. Master SS7/ISUP, SIP, RTP, QoS optimisation, capacity planning, secure communications with SRTP and TLS, PSTN-IP integration via media gateways, and advanced troubleshooting using Wireshark, CDRs, MOS scores, and RTP tools. Ideal for designing reliable telecom voice systems and smooth migrations to IP-based infrastructure.

flexible workload of 4 to 360h
valid certificate in your country
What will I learn?
This course offers a practical guide to mastering telephone switching, covering TDM basics, SS7/ISUP protocols, VoIP technologies like SIP, RTP, and media gateways. Participants will gain expertise in QoS management, capacity planning, codec choices, high availability setups, migration plans, interworking solutions, and troubleshooting techniques to build and sustain top-notch voice networks.
Elevify advantages
Develop skills
- Design VoIP capacity by sizing trunks, handling concurrent calls, and allocating QoS resources.
- Set up SIP, RTP, and codecs to ensure dependable and superior packet voice delivery.
- Deploy secure voice solutions including SRTP, SIP TLS, NAT traversal, and firewall configurations.
- Enable PSTN-IP integration through SS7-SIP interworking, media gateways, and call flow management.
- Diagnose voice network issues with Wireshark, CDRs, MOS tools, and detailed RTP examination.
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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