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What is the initial call request message called?
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What is the essential difference between ISDN and the ordinary telephone system (PSTN)?
What is Fractional PRI?
What kind of cabling is used for a PRI?
What is the D channel used for?
What is the call termination message called?
What determines which of these two protocols to use?
What are the two types of equipment that can be used on ISDN called?
How many devices may be connected to a PRI?
What are the two ISDN device addressing methods? The two types of device addressing in ISDN are known as:
A device is configured for automatic TEI. What is its address immediately after being switched on - before it starts communicating with the network?
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:
A fax machine is configured to filter for analogue calls - will it accept G3 Fax calls? No, it will only accept those calls whose call type is specifically 'Generic Analogue'.
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