How can I get more information?
How ISDN allows multiple devices to share a single line?
What is 2B1Q?
What is the Frame Format ?
What is LAP-D?
What are SAPIs?
What are TEIs?
How to Establish the Link Layer?
What are SPIDs?
What is Information Field Structure?
What the B and D channels do?
How the B and D channels share the line?
How the structures of BRI and PRI compare
What Bearer Capabilities are and on which channel they reside?
How to vary the the amount of bandwidth you have available to you?