What is Fractional PRI?
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What channel do the call management messages use?
What is the call termination message called?
How users are connected to a public ISDN through an ISPBX?
A fax call call might be designated as a generic analogue call or specifically as a fax call - true or false?
What is Information Field Structure?
What is ISDN's history?
Where does this conversion normally take place?
How ISDNs are connected together?
What is the difference between Internet and ISDN ? Is both are same or is there any specific difference ...?
How many devices may be connected to a BRI?
What is the maximum number of simultaneous connections supported by a Primary Rate Interface?
How many filters can be applied to a SETUP message?