I seem to get lost when it comes in terms of Networking types and its specifications by different International bodies. I am not able to understand things like -
"synchronous operation on public data networks networking protocol"
"packet mode connected to public data networks by dedicated circuit networking protocol"
"packet switched public data network through a public switched telephone network or an integrated services digital network or a circuit switched public data network networking protocol"
"accessing a Public Data Network from a DTE operating under control of a generalized polling protocol networking protocol"
"International numbering plan for public data networks networking protocol"
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Thanks in advance. Please provide links if any.