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Date: Sun 01-Sep-1991 18:47:19 From: bugs@atlantis.uucp (Dan Berry) Subject: Differentiating between fax/incoming user? I was asked a question by a fellow regarding dialups and fax modems, and I really didn't have the answer. What the person was wondering was if he bought a 96/96 data/fax modem, how would he make it capable of (a) accepting dialups, and (b) still accept incoming faxes? It would seem to me that it's impossible to do, with the only happy medium being that he could accept dialups and then have send-only for faxes. I imagine that the modem would figure out what type of modem Joe Blow was dialing in with, but is there some sort of front-end code that says "Check the carrier-type. V32 = goto getty, V(fax) = goto the fax daemon."? I also work at a store-front, so it would be nice to know for sales. _____ Dan Berry (bugs@atlantis.uucp, Dan_Berry@mts.ucs.ualberta.ca) President, Edmonton NeXT Users Group.
Date: Sun 01-Sep-1991 21:10:04 From: mcarling@leland.stanford.edu (M Carling) Subject: Re: Differentiating between fax/incoming user? In article <1991Sep1.184719.18776@atlantis.uucp> bugs@atlantis.uucp (Dan Berry) > I was asked a question by a fellow regarding dialups and fax modems, and I > really didn't have the answer. What the person was wondering was if he bought > a 96/96 data/fax modem, how would he make it capable of (a) accepting dialups, > and (b) still accept incoming faxes? [stuff deleted] To do this requires that the modem be capable of differentiating between fax and data signals. This is a hardware feature that (to my knowledge) only the Neuron faxmodem has.
Date: Sun 02-Sep-1991 16:06:32 From: dnanian@uw.com (Dave Nanian) Subject: Re: Differentiating between fax/incoming user? In article <1991Sep1.211004.29826@leland.Stanford.EDU> mcarling@leland.stanford.edu (M Carling) writes: > In article <1991Sep1.184719.18776@atlantis.uucp> bugs@atlantis.uucp (Dan Berry) > writes: > > I was asked a question by a fellow regarding dialups and fax modems, and I > > really didn't have the answer. What the person was wondering was if he > bought > > a 96/96 data/fax modem, how would he make it capable of (a) accepting > dialups, > > and (b) still accept incoming faxes? > [stuff deleted] > To do this requires that the modem be capable of differentiating between fax > and data signals. This is a hardware feature that (to my knowledge) only the > Neuron faxmodem has. > -- > M Carling > Research Assistant, The Hoover Institution, Stanford University > Director, Bay Area NeXT-user Group > mcarling@leland.stanford.edu (NeXTmail preferred) This is, indeed, true, but there are other solutions as well. For example, I use a Crosspoint Autoswitcher that performs the same function for data, fax and voice, and allows me to share a line between all three. In addition, it locks out the unused ports once another port has requested the line, so you don't have to worry about being interrupted. Finally, when a FAX comes in, if wired first (with your house phones plugged in after), it won't even ring the phone, which is nice. Costs about $100.
Date: Sun 02-Sep-1991 18:29:47 From: cnh5730@maraba.tamu.edu (Chuck) Subject: Re: Differentiating between fax/incoming user? In article <1991Sep2.160632.5821@uw.com> dnanian@uw.com (Dave Nanian) writes: |>I use a Crosspoint Autoswitcher that performs the same function for data, fax and |>voice, and allows me to share a line between all three. [..] |>Costs about $100. So where do we go to order one of these babies?
Date: Sun 02-Sep-1991 20:10:05 From: craig@uunet!bandw Subject: Re: Differentiating between fax/incoming user? In article <1991Sep1.184719.18776@atlantis.uucp> bugs@atlantis.uucp (Dan Berry) writes: >I was asked a question by a fellow regarding dialups and fax modems, and I >really didn't have the answer. What the person was wondering was if he bought >a 96/96 data/fax modem, how would he make it capable of (a) accepting dialups, >and (b) still accept incoming faxes? It would seem to me that it's impossible >to do, with the only happy medium being that he could accept dialups and then >have send-only for faxes. I imagine that the modem would figure out what type >of modem Joe Blow was dialing in with, but is there some sort of front-end code >that says "Check the carrier-type. V32 = goto getty, V(fax) = goto the fax >daemon."? I also work at a store-front, so it would be nice to know for sales. >_____ >Dan Berry (bugs@atlantis.uucp, Dan_Berry@mts.ucs.ualberta.ca) >President, Edmonton NeXT Users Group. Your evaluation is correct assuming that the "fax" driver only knows how to handle fax calls. Even with a fax/data switch, there is no way to tell getty to be polite and lay off if the incoming call is a fax. To make the scheme work, you need a smart driver like the one distributed with the Neuron Fax96+. You tell the fax driver that you want to launch getty for an incoming fax call and leave /etc/ttys alone. Then the driver does the right thing no matter whether the incoming call is fax or data.
Date: Sun 03-Sep-1991 00:12:57 From: dnanian@uw.com (Dave Nanian) Subject: Re: Differentiating between fax/incoming user? In article <3185@tamsun.TAMU.EDU> cnh5730@maraba.tamu.edu (Chuck) writes: > In article <1991Sep2.160632.5821@uw.com> dnanian@uw.com (Dave Nanian) writes: > |>I use a Crosspoint Autoswitcher that performs the same function for data, fax > and > |>voice, and allows me to share a line between all three. > [..] > |>Costs about $100. > > So where do we go to order one of these babies? I got mine from Hello Direct (1-800-HI-HELLO), but it costs too much from there (about $120 for the 2 device model, and $179 for the 3). Supposedly, the same thing is for sale from Staples and Egghead for $100. I'm using the Crosspoint, there are others. I saw one in the Damark catalog just the other day, 3 device, $99. (Not a Crosspoint, but seemed fine from the description.) Note that incoming modem calls aren't detected unless "reverse carrier" is used, but you can get to the device by dialing a 2-number code (my FAX is 11 and my modem is 22, but you can reprogram the thing with your phone however you want). Incoming FAX detection is automatic as long as CNG tones are transmitted by the calling FAX. If not, the same 2-number code can be used. Hope this makes sense.
Date: Sun 03-Sep-1991 02:19:28 From: jiro@shaman.com (Jiro Nakamura) Subject: Re: Differentiating between fax/incoming user? In article <1991Sep3.001257.6481@uw.com> dnanian@uw.com (Dave Nanian) writes: > In article <3185@tamsun.TAMU.EDU> cnh5730@maraba.tamu.edu (Chuck) writes: > > In article <1991Sep2.160632.5821@uw.com> dnanian@uw.com (Dave Nanian) > > |>I use a Crosspoint Autoswitcher that performs the same function for data, > fax > > and > > |>voice, and allows me to share a line between all three. > > [..] > > |>Costs about $100. > > > > So where do we go to order one of these babies? I bought mine from JDR electronics (check the back of any Byte) for about $100. If you want to test it out, feel free to phone my switch at 607-277-1440. I currently have all ports used: fax, modem, and answering Fax -- extension 11, or automatic CCITT group 3 tone recognition Modem -- extension 22 Answering Machine -- four rings or so (toll saved) Telephone -- ringer disabled, used for outgoing calls only - jiro
Date: Sun 07-Sep-1991 06:07:20 From: tomt%gtenext1.uucp@gte.com (Tom Tucker) Subject: Re: Differentiating between fax/incoming user? In article <1991Sep3.021928.933@shaman.com> jiro@shaman.com (Jiro Nakamura) > > I bought mine from JDR electronics (check the back of any Byte) for > about $100. If you want to test it out, feel free to phone my switch at > 607-277-1440. I currently have all ports used: fax, modem, and answering > machine: > > Fax -- extension 11, or automatic CCITT group 3 tone recognition > Modem -- extension 22 > Answering Machine -- four rings or so (toll saved) > Telephone -- ringer disabled, used for outgoing calls only > > - jiro I bought an ASAP TF 505 plus that operates in a similar manner for $100 at Sam's Wholsale. Works great!
Date: Sun 08-Sep-1991 03:55:19 From: glenn@rightbrain.com (Glenn Reid) Subject: Re: Differentiating between fax/incoming user? Dan Berry writes > I was asked a question by a fellow regarding dialups and fax modems, and I > really didn't have the answer. What the person was wondering was if he bought > a 96/96 data/fax modem, how would he make it capable of (a) accepting dialups, > and (b) still accept incoming faxes? It would seem to me that it's impossible > to do, with the only happy medium being that he could accept dialups and then > have send-only for faxes. The solution that I use is to use two modems, two serial ports, two cables, and a FAX switch (available from your electronics store). I have a Telebit modem on one serial port, and a Dove Fax modem on the other. They share a phone line, thanks to the fax switch that I got for $50 at the local Fry's Electronics (or something similar). Incoming fax calls can be detected by this switch and routed to the fax modem, and the data modem gets all the other calls. It works just dandy, and I actually prefer having a true-blue Telebit and Dove modem. I think the combined price is approximately the same as the Neuron modem. Just my $.02
Date: Sun 08-Sep-1991 15:45:32 From: memphis!rvs @uunet.uu.net (Ronald V. Simmons) Subject: Re: Differentiating between fax/incoming user? In article <610@rtbrain.rightbrain.com> glenn@rightbrain.com (Glenn Reid) > The solution that I use is to use two modems, two serial ports, two cables, and > a FAX switch (available from your electronics store). I have a Telebit modem on > one serial port, and a Dove Fax modem on the other. They share a phone line, > thanks to the fax switch that I got for $50 at the local Fry's Electronics (or > something similar). Incoming fax calls can be detected by this switch and routed > to the fax modem, and the data modem gets all the other calls. It works just > dandy, and I actually prefer having a true-blue Telebit and Dove modem. I think > the combined price is approximately the same as the Neuron modem. > > Just my $.02 > > -- > Glenn Reid NeXTMail: glenn@rightbrain.com > RightBrain Software ..{adobe,next}!heaven!glenn > NeXT/PostScript developers 415-326-2974 (NeXTfax 326-2977) I had a similar setup and went with the Neuron modem anyway for two reasons: 1) Neuron ships with Marble Teleconnect bundled in. (A $295.00 value that's yours free when you call this number. :^) ) This has become increasingly important to me as I begin to see SLIP (and later PPP) as the solution for many of my telecommunication needs. In fact what I really wanted instead of the Neuron modem was ISDN support in Teleconnect, but I suppose that that will have to wait until next release. (And until the Massachusetts Dept. of Public Utilities gets off its fat butt and tarriffs ISDN for New England Tel). 2) The Telebits are not particularly good for SLIP since their products which compare in price with the Neuron are not symmetrically full-duplex at the rated speeds (12K for the T1000 that I owned). They are however exceptionally good at uucp, but as I said I was beginning to need SLIP. On a more important point, how are all you people who have fax modems dealing with the occasional need to actually fax a real piece of paper? Have you also purchased scanners and enough disk to hold the scanned images? This is the problem that I ran into the day after I sold my stand alone fax machine and switch and began to use the Neuron modem.
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