A fax call call might be designated as a generic analogue call or specifically as a fax call - true or false?
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How Analogue fax and modem over ISDN?
What is 2B1Q?
How ISDN allows multiple devices to share a single line?
What is ISDN's history?
Do you know what is the difference between internet and isdn and is both are same or is there any specific difference?
What is LAP-D?
What are BRI and PRI? What are Channels?
Bearer Capabilities - What are they?
What Bearer Capabilities are and on which channel they reside?
How ISDN and analogue networks interact?
What is Information Field Structure?
What are SPIDs?
What are SAPIs?
What do the layers look like?
How ISDNs are connected together?