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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What are ISDN Services?
An ISPBX can behave like a single user and a network - true or false? True.?
Number of devices equals number of subscriber numbers required for MSN - true or false?
What do the layers look like?
What are BRI and PRI? What are Channels?
How users are connected to a public ISDN through an ISPBX?
A fax machine is configured to filter for analogue calls - will it accept G3 Fax calls? No, it will only accept those calls whose call type is specifically 'Generic Analogue'.
What protocols are used?
What Bearer Capabilities are and on which channel they reside?
What is the D channel used for?
What is the significance of the TEI in B channel communication?
How to vary the the amount of bandwidth you have available to you?