Question About ISDN
Hey I'm reading through the Technotes in the WAN section and it's going on about ISDN. It then says that an ISDN Modem is used to convert digital information to analogue and vice versa, However in Mike Meyers passport he specifically states that a ISDN modem is really the ISDN Terminal Adapter and does not due any modulation demodulation. Can someone shed some light on this for me please. So the ISDN circuits are not actually created by PSTN cabling? Or are the ISDN circuits actually phone wires that arn't plugged(a part of ) into a PSTN switch or PSTN modem? And should I even worry about this for Network+?Thanks
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