How to Establish the Link Layer?
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What is the initial call request message called?
How configuration errors in the ISPBX can prevent successful connections?
In practice, what is the maximum number of devices that may be connected to a BRI which expects a fixed TEI?
What are SPIDs?
What is LAP-D?
What the B and D channels do?
What is ISDN's history?
What channel do the call management messages use?
call flow in nss ? and what is sri signal?
Why use ISDN?
Name the two forms in which an ISDN service can be provided to the user. ISDN can be supplied to the user in two forms:
What item of equipment would be required to connect a modem to ISDN? A terminal adapter.