What is 2B1Q?
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What is 2B1Q?
Do users on an ISPBX have a D channel connection to the ISPBX or to the public ISDN network? The users on an ISPBX do not communicate directly with the public network at all.
Where else is rate adaptation employed?
How ISDN allows multiple devices to share a single line?
Why does there need to be a broadcast TEI?
What channel do the call management messages use?
What is the maximum number of simultaneous connections supported by a Basic Rate Interface?
What address does an ISDN PRI line always use?
If none of the equipment connected to an NT1 requires a power supply through the interface, do I need to attach the NT1 to the mains?
 What is the name of the reference point that is located on the user side of an NT1?
A fax call call might be designated as a generic analogue call or specifically as a fax call - true or false?
Why use ISDN?