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- Newsgroups: comp.dcom.isdn
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!cbnewse!cbnewsd!varney
- From: varney@cbnewsd.cb.att.com (Al Varney)
- Subject: Re: The ISDN network
- Organization: AT&T Network Systems, Lisle, IL
- Distribution: na
- Date: Mon, 14 Dec 1992 15:48:48 GMT
- Message-ID: <1992Dec14.154848.28398@cbnewsd.cb.att.com>
- References: <1992Dec8.180525.15003@atlastele.com> <7370@dove.nist.gov> <1992Dec12.081459.164@indyvax.iupui.edu>
- Sender: Al Varney <varney@ihlpl.ih.att.com>
- Lines: 24
-
- In article <1992Dec12.081459.164@indyvax.iupui.edu> imhw400@indyvax.iupui.edu writes:
- >In article <7370@dove.nist.gov>, toense@cplxsys.ncsl.nist.gov (Robert E. Toense) writes:
- >> As for dial-in services, I would expect that they would have analog lines for
- >> modem service and ISDN lines for pure digital service. The mix would be
- >> based on the needs of their customers and other business factors.
- >
- >Don't forget the money that the telcos can make by offering modem pools to
- >their ISDN customers (if and when they deign to accept any) for a fee, to
- >facilitate connection to the digitally impaired.
-
- This capability has been available on the AT&T 5ESS(rg) switch for several
- years, for speeds up to 9600 baud. They interwork to X.25 on an ISDN D-channel.
- Modem pools can be either public (TELCo) or private (on customer prem.), and
- can exist in various combinations of Closed User Group & Incoming/Outgoing
- restrictions. The private designation can allow public (unscreened) access
- if that is desired. Maintenance responsibility can be either "customer"
- or "switch owner".
-
- For some users that need modems on an infrequent basis, model pooling
- makes a lot of sense (for analog or ISDN lines). For ISDN users that use
- D-channel for data to "internal" points and only occasionally need
- "outside" access, modem pools are much cheaper than a modem per user.
-
- Al Varney - just MY opinion, I'm not in sales....
-