Do you know what is the difference between internet and isdn and is both are same or is there any specific difference?
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How to vary the the amount of bandwidth you have available to you?
How can you find what Bearer Capabilities are specified on an incoming or outgoing call?
What are BRI and PRI? What are Channels?
Why can you not normally send data between users through the D channel?
What channel do the call management messages use?
What is the maximum number of simultaneous connections supported by a Basic Rate Interface?
How the structures of BRI and PRI compare
How configuration errors in the ISPBX can prevent successful connections?
Why is rate adaptation necessary?
A user on an ISPBX can use different D-Channel protocols to those in use by the public ISDN network connected to the ISPBX - true or false?
What is the Frame Format ?
Why is this information significant?