What is the initial call request message called?
What filters are used when implementing MSN?
How many devices may be connected to a BRI?
How many devices may be connected to a PRI?
What are BRI and PRI? What are Channels?
What is LAP-D?
How to Establish the Link Layer?
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 kind of cabling is used for a BRI?
Do you know what is the difference between internet and isdn and is both are same or is there any specific difference?
What must each SETUP message contain?
Does a Terminal Adapter always contain a Codec or Modem?
Why does there need to be a broadcast TEI?