These are all different internet protocols. Way too complicated to explain here. You might start with Ethernet. Once you understand that, you might be able to move on to more high-level protocols, like Voice over Internet Protocol (VoIP).
Just plug them into Wikipedia and you'll get adequate explanations.
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"Perplexity is the beginning of dementia" - Professor Coriolus
Question in telecom sector
Re: Question in telecom sector
