Telephone Switching Course
This course teaches telephone switching skills for PSTN and VoIP networks. Learners master SIP, SS7, QoS, capacity planning, security like SRTP and TLS, interworking with media gateways, and troubleshooting using Wireshark, CDRs, MOS scores, and RTP analysis to build and maintain reliable voice systems in telecom.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
Gain practical expertise in telephone switching, covering TDM basics, SS7/ISUP, VoIP with SIP, RTP, gateways, QoS, codecs, capacity planning, security, PSTN-IP migration, interworking, and troubleshooting for designing and optimizing voice networks.
Elevify advantages
Develop skills
- Design VoIP capacity by sizing trunks, calls, and QoS.
- Configure SIP, RTP, codecs for quality packet voice.
- Implement secure voice with SRTP, SIP TLS, NAT, firewalls.
- Integrate PSTN-IP via SS7-SIP, gateways, call flows.
- Troubleshoot networks using Wireshark, CDRs, MOS, RTP tools.
Suggested summary
Before starting, you can change the chapters and workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workload.What our students say
As suas aulas são perfeitas. Adquiri o pacote de um ano e, finalmente, tenho a oportunidade de acompanhar diversos temas do meu interesse sem precisar mudar de plataforma... agradeço por tudo o que fazem, já recomendei vocês a outras pessoas...

Giulio CarloAluno de Marketing Digital
Eu gosto de como as lições são direto ao ponto e como eu consigo alterar capítulos e pular conteúdos que não preciso.

Mariana FerresAluna de Fotografia
Gosto do conteúdo e do modo de apresentação e transcrição de vídeos, o que acelera o processo!

Luciana AlvarengaAluna de Design de Unhas
A plataforma é rápida, simples de usar. A diversidade de conteúdo e os vídeos complementares ajudam muito no aprendizado.

Giulio CarloAluno de Engenharia de Prompt
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