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In article <4j7loq$o1s@news.fsu.edu>
   deisenbe@mailer.fsu.edu (Daniel Eisenberg) writes:
DE> If one has ISDN, how many numbers can be assigned to your single line?
DE> Can one carry on three conversations at once?
DE> If one has multiple terminal adaptors, can one run different modems on the
DE> same line from different rooms?

ISDN BRI (Basic Rate Interface) provides an interface to the telephone
CO (central office) switch which provides for two 64 Kbps datapaths plus
a 16 Kbps signalling datapath for call setup and low-speed X.25 packet
data service.

The number of directory numbers assigned to the line is in principle
not limited by technology, but may be limited by local tariffs. (I.e.
ask your telephone company.)

You cannot carry on three conversations at once over a single BRI, but 
if both data paths are in use, you may still be able to accept an
incoming call by putting one of the active calls on hold (in a hold
queue at the central office) and allocating its data path to the new
call. This feature is called EKTS (Electronic Key Telephone System)
and is available at extra cost from some (but not all) local telephone
companies.

Multiple terminal adaptors can be independently attached to the
S/T bus. This complicates the setup, since each adapter needs a
separate SPID.
-- 
/ Lars Poulsen			Internet E-mail: lars@RNS.COM
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