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- Newsgroups: comp.dcom.modems
- Path: sparky!uunet!indetech!wetware!wsrcc!wolfgang
- From: wolfgang@wsrcc.com (Wolfgang S. Rupprecht)
- Subject: Re: Boom! You're Dead.
- Message-ID: <BrxHEJ.9ws@wsrcc.com>
- Organization: W S Rupprecht Computer Consulting, Fremont CA
- References: <1992Jul18.142320.4269@qiclab.scn> <1992Jul24.031631.26450@chinet.chi.il.us> <1992Jul24.133231.17199@qiclab.scn.rain.com> <1992Jul24.164526.19432@nntpd.lkg.dec.com>
- Date: Sat, 25 Jul 1992 04:49:30 GMT
- Lines: 28
-
- halpin@xcalbr.dsg.dec.com (Steve Halpin) writes:
- >Does anyone currently sell a modem with a second control channel available?
- >It might be useful to write a modem device driver such that you could have
- >the operating system manage features like dialing out, and still let user
- >level processes manage the data stream. It would be nice to address the
- >potential market of sites supporting dial-in and dial-out with the same modems,
- >and perhaps even add FAX and voicemail in there too, rather than just
- >addressing the current market of large dial-in-only banks and dial-out
- >systems based only on personal PCs where the user is held accountable by
- >default for phone charges. -Steve
-
- Well, yes and no. You can buy a used Trailblazer with BA4.00 proms or
- buy a new one and downgrade the proms to BA4.00 and have a fully
- functional second channel. From a Sparc SLC just connect a 25-pin
- straight cable and fire up two tips or cu's. Both SLC and Trailblazer
- are wired for primary and alternate rs232 connections on one cable.
- The only caveat is that if you want to use the alternate modem channel
- you have to initiate the modem commands from that channel. You can't
- dial from the primary and then switch to the secondary, you have to
- dial from the secondary.
-
- Too bad the software for driving the secondary channel got broken in
- the later prom releases.
-
- -wolfgang
- --
- Wolfgang Rupprecht wolfgang@wsrcc.com (or) wsrcc!wolfgang
- Snail Mail: 39469 Gallaudet Drive, Fremont, CA 94538-4511
-