Name the two forms in which an ISDN service can be provided to the user. ISDN can be supplied to the user in two forms:
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Answer / silpa
Basic Rate - Two 'B' channels
Typical usage: domestic use, home-workers, remote offices
and
Primary Rate - 30 'B' channels (23 in North America)
Typical usage: corporate use, dial-in remote access servers, Internet service providers, digital PABXs
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