Traditional Telephony
Traditional telephony refers to the legacy systems and technologies used for voice communication over physical networks, primarily based on circuit-switched infrastructure like the Public Switched Telephone Network (PSTN). It includes analog and digital telephony, landline phones, PBX systems, and protocols such as SS7 for call setup and management. This technology enables reliable, real-time voice calls but lacks the flexibility and integration capabilities of modern digital solutions.
Developers should learn about traditional telephony when working on legacy system maintenance, migration projects to modern systems, or in industries like telecommunications, finance, or healthcare where older infrastructure is still in use. It is essential for understanding the evolution of communication technologies, troubleshooting interoperability issues with VoIP systems, and ensuring compliance with regulatory standards in certain regions.