What is ISDN's history?
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What determines which of these two protocols to use?
How can I get more information?
What are these types of NT1 known as?
Why does there need to be a broadcast TEI?
What is the D channel used for?
What is the significance of the TEI in B channel communication?
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 are ISDN Services?
Why is rate adaptation necessary?
What is the Frame Format ?
How many devices may be connected to a PRI?
How configuration errors in the ISPBX can prevent successful connections?