What is ISDN's history?
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For all the above conversions to succeed, what must be common?
How many devices may be connected to a PRI?
What happens to these bits when they are received by the ISDN telephone at the other end?
How users are connected to a public ISDN through an ISPBX?
What is the maximum number of simultaneous connections supported by a Primary Rate Interface?
Name two significant differences between B and D channels.
Explain the call flow in nss and what is sri signal?
What is the device inside an ISDN telephone that converts voice into digits?
What are SAPIs?
In order to be able to plug analogue devices into sockets on an NT1, what extra item of equipment would need to be included within the the NT1?
Why does there need to be a broadcast TEI?
How to Establish the Link Layer?