[comp.dcom.telecom] Actual ISDN Service in the US

danny@uunet.uu.net (Danny Wilson) (09/25/89)

I am generally aware of the state of ISDN deployment in Asia, but I am
often asked how that compares with the status of ISDN in the United
States.

Japan, for example, has had active Basic Rate Access (BRA) service
[INS NET-64] available for over a year now. And although the requests
for this service were lower than orginal forecasts, NTT has begun
service of its Primary Rate Access (PRA) service [INS NET-1500] and is
continuing to expand the service areas of BRA.

My question is what is the status of ISDN deployment in the US?  Is is
past the field trial stage and generally available to commercial
subscribers? or much more limited in geographic availability?

Also, with SS7 not yet widely implemented combined with the
fragmentation produced by a multitude of non-centrally administered
RBOC's, does the user community prefer to 'roll there own' network
(using fractional T-1 for example) instead of waiting for ISDN?

Thanks,
Danny Wilson
IDACOM Electronics		danny@idacom.uucp
Edmonton, Alberta		{att, watmath, ubc-cs}!alberta!idacom!danny
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